Chevy Silverado Hard To Start When Cold

When I tried to start engine. i have a 1987 chevy silverado 5. with 4800 engine that is hard to start when the engine is warmed up. 0 gas, when trying to start up I have to turn the key on without cranking 1st then turn it off, then turn it on and crank this time and my truck will start up. So without wasting much time let’s start our list of 3 Best Mods/Upgrades that will boost the performance level of Chevy Silverado 1500. I've recently changed the fuel filter. Check out free battery charging and engine diagnostic testing while you are in store. Not more than 2 hours after driving away from the dealership the "Service Engine Soon" lights up. What is the proper fuel pressure. Trying to start my 96 chevy 1500 silverado with the 350 small block v8. 1985 Silverado 12 degree start. I am in the Lee’s Summit area selling my 2001 Chevy Silverado LS z71 4x4. Genuine Chevrolet, Buick, GMC and Cadillac Accessories are the only accessories backed by GM. My opinion this is one of the best cold air intake for silverado. chevy silverado hard starting i have a 99 silverado 5. See the 2011 Chevrolet Silverado 3500 HD Extended Cab price range, expert review, consumer reviews, safety ratings, and listings. Order Chevrolet Silverado 2500 HD Battery online today. should make your truck start like new again. i have replaced fuel diaphram and every sensor under the hood. Average repair cost is $270 at 109,500 miles. 2002 chevy 2500hd 6. By inducting cooler, exterior air from outside the engine area, a cold air intake is able to smooth and straighten air flow into the engine. im not 100% sure on what the problem could be but i replaced my fuel pump in my 2000 silverado 1500 ext cab 4x4 5. I have to turn it over several times in order to get it to start than I have to feather the gas alot in order to keep it running after a few minutes it idles on its own really low idle. The 2017 Chevrolet Silverado full-size pickup finds itself in a styling and power war not only with rivals like the Ford F-150 and Ram 1500, but Nissan’s new Titan and Toyota’s Tundra. Question = I have a 1999 Chevy Silverado that i bought about 2 months ago. It was cold out so it never started till the next video. also when it does start it blow smoke but only after sitting. All starts afterward are fine. Chevy Silverado P0507 Causes and Diagnosis. 1989 Chevy Silverado 2500 - turns over, won't start. Here are the most common causes of P0101 in the Chevy Silverado. My truck has been starting hard the last few days. Once it starts and is warmed up, it runs perfectly. Your complaint will be added to the NHTSA complaints database after a thorough review. Having a hard start issue with my 1500 HD 6. The NHTSA #10081880 and. We are excited to offer this 2008 Chevrolet Silverado 1500. I have tried an extended crank of 5-8 seconds and it still will not start on the first attempt. For the past month or two has been a little hard to start when the truck has been sitting for 5 or more hours. does it on both tanks and both fuel pumps are brand new. See the 2013 Chevrolet Silverado 1500 Crew Cab price range, expert review, consumer reviews, safety ratings, and listings near you. Brake Problems Plague Silverado Owners It goes to floor at times when making a hard stop. Joe's Car Connection, Roy, UT, 801-776-8075. When I drive it and it sits for an hour or so it starts OK. it runs like a champ and you can cut off and crank up with know problem. It has really hard cold starting. will not start. This truck has gotten hard to start when it is cold. The motor still had the original. By hard to start, it takes anywhere from 5 to 10 seconds. This truck is gas, the 5. 2002 SILVERADO 5. 3-liter engine with active cylinder management. Question = Truck suddenly became hard to start. 2002 chevy 2500hd 6. Once it starts and is warmed up, it runs perfectly. 0 gas, hard starting wether its dead cold or cooled off alittle bit 25 Answers 2000 chevy 2500hd 6. my silverado pickup starts great when cold but will not start with out cranking for probably around 6 seconds. They are presented loosely in order from most to least likely: MAF Sensor Dirty- Over the course of its life, the MAF sensor will often get so covered in grime that it'll no longer get an accurate reading. There are a lot of potential causes to P0507. at Toyota of Murfreesboro. Chevy Silverado P0442 Symptoms. Can I fix this myself. smoke is grey and smells like its running rich. Question = I have a 1999 Chevy Silverado that i bought about 2 months ago. 2006 Duramax diesel GMC Sierra 35000. 2002 chevy 2500hd 6. Temp fix: Crank, - Chevrolet 2001 Silverado 2500HD question. I changed the FPR and fuel filter myself and now it starts fine COLD but is hard to start when WARM. com FREE DELIVERY possible on eligible purchases. 3 Silverado with handling reminiscent of its predecessor the 454SS, but it could use 100 more horespower. Brake Problems Plague Silverado Owners It goes to floor at times when making a hard stop. Brake Problems Plague Silverado Owners It goes to floor at times when making a hard stop. 3 V8 been having a cold And Hard To Start My 1992 Chevy Truck. The K&N high-flow performance air intake system is a free-flowing, mandrel-bent aluminum tube air induction system. 1 L Hot or cold hard starting. which also improves efficiency and keeps the cabin warm in cold. white smoke and/or coolant odor may come from exhaust for an extended period of time at cold start as well. fuel pump has never been replaced. Recently it has been hard starting after it sits a while. Well, there are various reasons why engines have trouble starting in different temperatures. 2001 Chevy Silverado. I've been desperately searching for answers online and have read all 103 posts in this forum - I'm leaning towards fuel pump at this point, but at around $250 and with the requirement of tank removal I'm trying to really be sure I get this right; I'll keep you posted. The Model 2003 silverado 6 cylinder manual. Could this be a flooding issue caused by a leaking injector(s)?. When I first bought it (in February), it would idle very rough and was slightly hard to start when cold. I have to crank it for a while, and it runs rough and stalls for about 15 minutes after that. why is my truck not firing - i have changed the crank and cam sensors but my truck keeps losing fire × We use cookies to help our site to work, to help us understand how it is used, and to tailor advertising on this and other sites. at Toyota of Murfreesboro. 55/57 will not fire a injector on a cold start. Chevy Silverado P0442 Symptoms. 1985 Silverado 12 degree start. When I drive it and it sits for an hour or so it starts OK. Reader Question Hello My name is Martin I have a 1993 Chevy Silverado 1500 Pick up V8 350. im not 100% sure on what the problem could be but i replaced my fuel pump in my 2000 silverado 1500 ext cab 4x4 5. When I first bought it (in February), it would idle very rough and was slightly hard to start when cold. The symptoms of P0121 are going to vary by year and model, but they certainly are going to cause noticeable changes in the way that your Silverado drives. Starts fine when cold or cooled off but turns over very slow when hot. does it on both tanks and both fuel pumps are brand new. Find car prices, photos, and more. 2000 Chevy Silverado Hard To Start Only Sometimes It Has A 5. I have a Chevy Silverado 2500HD Duramax that is running like crap below 35 degrees Learn more about Chevrolet Silverado 2500HD at the Edmunds. Equip cars, trucks & SUVs with 2014 Chevrolet Silverado 1500 Battery from AutoZone. 2002 chevy 2500hd 6. 3 vortec silverado. As it warms up the idle air control adjusts to this vacuum leak and when the key is off the idle air control resets itself causing a hard start up due to the vacuum leak not being compensated for. It used to start up instantly but now it takes two or three seconds of cranking to fire up. I have a 99 Silverado Z71, 5. Brake Problems Plague Silverado Owners It goes to floor at times when making a hard stop. Hi, Guest ! Save cars. As the nation’s top-selling truck for over 40 years, the F-150 has maintained its status as the industry-leading truck. The NHTSA #10081880 and. View pictures, specs, and pricing. I have a 99 Silverado Z71, 5. 2006 Duramax diesel GMC Sierra 35000. Photo 7/26 | At the track, Zack leaves the starting line with 20 psi of boost, which has rocketed his ’11 Chevrolet Silverado 2500HD to a best 60-foot time of 1. if not the fuel is going somewhere. When I first bought it (in February), it would idle very rough and was slightly hard to start when cold. Research, compare and save listings, or contact sellers directly from 261 2004 Silverado 1500 models in Tampa. 2000 Chevy Silverado Hard To Start Only Sometimes It Has A 5. 7L Vortec used to start as soon as you bump the key, and now it is hard to start (mainly when its cold) it takes several cranks of the engine to start and after truck warms up its okay, usually in the morning or if the truck sits for several hours after running. also when it does start it blow smoke but only after sitting. This 2000 Chevrolet Silverado LS C1500 pickup has 125,048 miles and it is in excellent condition. 0L Vortec, 88,000mi Problem: The engine progressively starting having a hard start while cold. To answer the question about where the fuel pressure req is: on my truck it is on the driver side fuel rail directly over the valve cover. While you might have to use it in hot climates there is no good reason to have the AC switch (which looks like a snowflake on the display), on year round. If the diaphragm is ruptured inside the regulator, fuel will leak into the intake manifold and cause a hard starting condition. "I bought A Chevy. By inducting cooler, exterior air from outside the engine area, a cold air intake is able to smooth and straighten air flow into the engine. View pricing, pictures and features on this vehicle. 1999 CHEVY SILVERADO Z71 starting problem. Get Yours Today! We have the best products at the right price. 1989 Chevy Silverado 2500 - turns over, won't start. Chevy Silverado P0121 Symptoms. It just turns over when I try to start and when I let go of the key it acts like it tries to start. I have to turn it over several times in order to get it to start than I have to feather the gas alot in order to keep it running after a few minutes it idles on its own really low idle. with 4800 engine that is hard to start when the engine is warmed up. When it's cold it starts OK. Take advantage of free shipping in the lower 48 United States. Editor's Overview. 17 problems related to power train have been reported for the 2017 Chevrolet Silverado 1500. I'm having starting issues. Check out free battery charging and engine diagnostic testing while you are in store. runs fine if you pull out slow or once your going. Changed fuel filter help a little now back (not starting) wether does not have to be cold to do this. Key is in start position but will not crank. Re: hard start 98 chevy vortec 454 December 11th, 2011, 12:57 AM leakie injector would do it. Re: 2010 LT hard to start when cold, have to give it some ga Jan 15 2013, 12:13am Thanks, I tried some different gas when I filled up after cleaning my MAF and throttle body so if that doesn't fix it I will pay the dealer a visit. Re: 2001 Silverado Hard Start when Hot 01-25-06 02:32 PM - Post# 747119 In response to kunk The reason I'm asking is because I've seen carbs (I know this is an injection engine) on other engines develop air bubbles when hot. 7 (350) to start up. I had the carb rebuilt with new plugs installed, and I replaced the fuel pump. 2008 Chevrolet Silverado 1500 Repair Histories. After the truck sites for 4 or 5 days sometime not every time it will not start. The 2017 Chevrolet Silverado full-size pickup finds itself in a styling and power war not only with rivals like the Ford F-150 and Ram 1500, but Nissan's new Titan and Toyota's Tundra. Locate car dealers and find your car at Autotrader!. Find 1998 Chevrolet Silverado 1500 for Sale. Chevy Silverado P0121 Symptoms. 1989 Chevy Silverado 2500 - turns over, won't start. the gauge should be still the same psi. 3L hard to start Feb 11 2012, 6:52pm Its not really sensitive to weather conditions as far as rain or snow, but if its really cold out, it does have a more difficult time starting. Hello all, My 1998 chevy silverado 5. Best Answer: at 20 degrees untreated diesel fuel begins to form wax (gel) which can cause your fuel filter to plug up, restricting or cutting off fuel flow to your engine, plugging in you engine heater will help to eliminate this. 0 gas, hard starting wether its dead cold or cooled off alittle bit 25 Answers 2000 chevy 2500hd 6. Question = I have a 1999 Chevy Silverado that i bought about 2 months ago. See the 2013 Chevrolet Silverado 1500 Crew Cab price range, expert review, consumer reviews, safety ratings, and listings near you. I have to turn it over several times in order to get it to start than I have to feather the gas alot in order to keep it running after a few minutes it idles on its own really low idle. My truck has been starting hard the last few days. Learn more about the 2011 Chevrolet Silverado 3500 HD Extended Cab. See Engine Oil on page 5-16. Advance Auto carries over 3,616 aftermarket parts for your 2003 Chevrolet Silverado 2500, along with original equipment manufacturer (OEM) parts. why is my truck not firing - i have changed the crank and cam sensors but my truck keeps losing fire × We use cookies to help our site to work, to help us understand how it is used, and to tailor advertising on this and other sites. 3 liter V-8 with an automatic transmission that runs super. 3 hard cold start Lately my 2001 Silverado had become increasingly difficult to start. My father has a 1999 with the 6. Appears to be fuel system drys out. The Chevrolet Silverado is a full-size pickup truck. Chevy Silverado 2019, 77 Series High-Flow Performance Aluminum Cold Air Intake System by K&N®. New 2019 Chevrolet Silverado 1500 LTZ 4D Crew Cab for sale - only $43,685. It starts fine when cold. Had the fuel pump replaced 3 months ago. My 1996 chevy silverado is hard to start in the morning, but starts up good when warmed up ive replaced the fuel pump filter and fuel pump relay, when cold it just chugs a little until it starts. Will try to be as detailed as possible Symptom: Truck cranks over until battery is dead but will not start. A weak battery will produce a weak spark at the plugs, and will turn the engine over slowly. Chevy’s Silverado 2500 HD truck line features some of the most factory capable pickups being manufactured currently, but that doesn’t mean that there isn’t some room for improvement. Seems pretty certain to be a fuel pressure problem from what I have read so far. Friend brought his 97 (5. The 2008 Chevrolet Silverado has 2 problems reported for weak battery, fails to start on cold day. If Engine Ran For A While And Shut Off For 20 Min Or More It Doesnt Want To Start Untill I Press The Gas Pedal. You can read more here and make your cookie choices. Sometimes it'd fire right up, sometimes you'd have to crank it over up to 60 seconds before it spit and sputter and took. Key is in start position but will not crank. Joe's Car Connection, Roy, UT, 801-776-8075. At Edmunds we drive every car we review. After a total of about $1000 in repair bills the truck is finally running ok. Question = I have a 1999 Chevy Silverado that i bought about 2 months ago. Owner compliant confirmed. Shop 2004 Chevrolet Silverado 1500 vehicles for sale in Tampa, FL at Cars. duramax hard to start like 5 to 10 sec. That hitch is a fit for 2007-2010 model years of the 2500. Fender flares fit perfect and tight against fenders and all mounting holes lined up. 2000 chevy silverado starts up fine when engine is cold but hard to start after warmed up and already changed plugs and wires didnt help Maybe battery or starter is going or positive cable to the starter is going bad. Problem has been around since it was new, would always start easily enough. Silverado hard starting when warm - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. Cold Weather Starting (Diesel Engine) The following tips will help you get good starting in cold weather. When I turn the key it cranks for several mins before starting or if I turn the key off while it is cranking and try again it will start right up. Consider that that the light-duty Silverado 1500 High Country fetches over $45k, it's not hard to imagine a High Country HD going for an easy $60k with the right engine. (ryan)>> hey guys, welcome to truck tech. Later V6 and V8 gm engines should have 60-66 fuel pressure. but with more than a quarter million miles on this truck's clock, there's a lot of work to do. When the engine is started cold, regardless of the outside temperature, the idle is rough and there is a noticable power loss. It does'nt even fire like it wants to start. Recently it has been hard starting after it sits a while. Hello all, My 1998 chevy silverado 5. I think Chevy knows the fix, but too expensive to recall. Pair our available Duramax® 6. ? Sounds like a starter that in the process of going bad. To learn more, see reviews below or submit your. Sometimes it'd fire right up, sometimes you'd have to crank it over up to 60 seconds before it spit and sputter and took. 2009 Chevy silverado LT 5. Get your vehicle running with durable 2016 Chevrolet Silverado 1500 V8 5. the gauge should be still the same psi. com FREE DELIVERY possible on eligible purchases. American truck market is an extremely competitive one. Hard starting question with 1994 Chevy Silverado Pickup, 160,000+ miles? I'm starting to have a problem with my V8 Chevy not wanting to start, mostly on cold damp days. 0 gas, when trying to start up I have to turn the key on without cranking 1st then turn it off, then turn it on and crank this time and my truck will start up. 3L hard to start Feb 11 2012, 6:52pm Its not really sensitive to weather conditions as far as rain or snow, but if its really cold out, it does have a more difficult time starting. The amount of dark exhaust on cold start is pretty high in my opinion. again the moment it starts I can shut it off and restart it. 3 18 answers. Equip cars, trucks & SUVs with 2014 Chevrolet Silverado 1500 Battery from AutoZone. Most of the time when it is warm it starts first time ev. Changing a Fuel Pressure Regulator on hard starting 2000 Chevy Silverado Yourself I was having a problem with my 2000 Chevrolet Silverado. This company is not yet accredited. Problem with my 1999 Chevy Silverado 1500 5. Research the 2018 Chevrolet Silverado 1500 High Country near Nashville, TN. Brake Problems Plague Silverado Owners It goes to floor at times when making a hard stop. If it now start, then most likely the throttle is carboned up and needs to be cleaned. Originally a trim package for Chevy’s popular C/K pickups, the Silverado debuted as its own stand-alone model in 1998. does it on both tanks and both fuel pumps are brand new. The most recently reported issues are listed below. Designed for performance enthusiasts who want extreme ignitability, improved throttle response and superior anti-fouling, these spark plugs are a great option for modified engines. I would like to know what is the normal idle speed when my truck is running cold? what is the normal idle speed when my truck is at normal temperature?. also when it does start it blow smoke but only after sitting. Visit Coastal Chevrolet Cadillac Nissan in Pawleys Island SC serving Murrells Inlet, Georgetown and Myrtle Beach #1GCUYDED8KZ419998. You might want to check the fuel pressure regulator for leaks. 3L about 5 months ago with a fuel pump from pep boys that cost about $240-$270 ish cant remember exactly and i dont know the brand so why i said all that and i havnt had a hard starting probelm at all, put the new one in and boom started right up np from day one of new pump, just. I drove veicle for about 15 to 20 mins. Equip cars, trucks & SUVs with 2007 Chevrolet Silverado 1500 Battery from AutoZone. They said it is causing a "fuel foul" in the plugs and if I change the plugs, it would run fine. 8L all of sudden is hard to start, needs much cranking, and has a rough low idle. 3L 720CCA Car and Truck Batteries auto batteries from Batteries Plus Bulbs. CarComplaints. The engine starts great when cold but turns over quite a few times when its warmed up before it will start. 2001 Chevy Silverado 5. 3L - Hey, this is my first visit to this forum. After Chevy had it for 5 days they said it was an issue with the timing chains. Locate car dealers and find your car at Autotrader!. Ever since i bought it has had a hard time starting except for first thing in the morning. My gas guage keeps going from full to empty when driving. I also noticed when it's cold it runs slightly rough and the idle varys a bit. Sometimes randomly with the temperature set below 70 degrees and inside temperature much higher the Driver side will suddenly start blowing hot air while the passenger side will continue blowing cold air. Visit Coastal Chevrolet Cadillac Nissan in Pawleys Island SC serving Murrells Inlet, Georgetown and Myrtle Beach #1GCUYDED8KZ419998. Trying to start my 96 chevy 1500 silverado with the 350 small block v8. Had the fuel pump replaced 3 months ago. By inducting cooler, exterior air from outside the engine area, a cold air intake is able to smooth and straighten air flow into the engine. Cranked fine, tried to start--then did not, then chugged, tried and finally did start. Takes about 2-3 crank attempts of 2-3 seconds to crank. I have no engine light so not sure if any codes are in the computer. 0 Vortec with 225K. 0 gas, when trying to start up I have to turn the key on without cranking 1st then turn it off, then turn it on and crank this time and my truck will start up. I have a 1997 Silverado 350 V-8, it has got to where it want start when cold I can prime it with a small amount of gas and it starts and runs good, and will also start when warm. Check out free battery charging and engine diagnostic testing while you are in store. When the outside temperature drops below 0° F (-18°C), use of the engine coolant heater is recommended. There was soft brown leather on the seats as well as plenty of cowhide on door panels, dashboard, and center console. Not more than 2 hours after driving away from the dealership the "Service Engine Soon" lights up. 7 (350) to start up. The truck is stored inside at about 60 degrees. I bought a 1996 4. I've recently changed the fuel filter. When its cold it is in open loop mode and by default would add extra fuel possibly neutralizing the effects of the small vac leak. Shop 2017 Chevrolet Silverado 1500 vehicles for sale in Centennial, CO at Cars. Research the 2018 Chevrolet Silverado 1500 High Country near Nashville, TN. If Engine Ran For A While And Shut Off For 20 Min Or More It Doesnt Want To Start Untill I Press The Gas Pedal. Our certified mobile technicians come to you 7 days a week between 7 AM and 9 PM. Learn about this problem, why it occurs, and how to fix it. Read 2015 Chevrolet Silverado 1500 Owner Reviews, Expert Reviews, Prices, Specs and Photos. See the 2012 Chevrolet Silverado 1500 Crew Cab price range, expert review, consumer reviews, safety ratings, and listings near you. Could this be a flooding issue caused by a leaking injector(s)?. It's hard to start when cold. Question: trailering button dosent work on end of sifter----Chevy Silverado 1500 4wd HD. It did it, again, about 20 minutes later. The 2015 Chevrolet Silverado 1500 represents the second model year of Chevy's latest truck design. There was soft brown leather on the seats as well as plenty of cowhide on door panels, dashboard, and center console. Re: Hard start - Rough idle. 2008 Chevrolet Silverado 1500 Repair Histories. To see how frequently Chevrolet Silverado 1500 problems occur, check out our car reliability stats. My truck has been starting hard the last few days. I have had the "cold start" problem for a while now. The most recently reported issues are listed below. when the truck sits it hard to start but after driven starts right up. Hard start cold ( recent) and a code #43 ( been there longer). I would like to know what is the normal idle speed when my truck is running cold? what is the normal idle speed when my truck is at normal temperature?. It starts fine when cold. The truck was completely redone for 2014, with a design that closely mimics that of the brand's. It was cold out so it never started till the next video. Question = I have a 1999 Chevy Silverado that i bought about 2 months ago. The truck is stored inside at about 60 degrees. Hard starting Chev 2500HD 8. A weak battery will produce a weak spark at the plugs, and will turn the engine over slowly. Use the recommended engine oil when the outside temperature drops below freezing. Key is in start position but will not crank. I have a 99 Silverado Z71, 5. Problems is that it is hard to start when its hot (normal operating temperature). Chevy Silverado 1500 accessories from RealTruck give your truck a whole new look and improved utility. When it's cold it starts OK. My 1996 chevy silverado is hard to start in the morning, but starts up good when warmed up ive replaced the fuel pump filter and fuel pump relay, when cold it just chugs a little until it starts. Also please check out the statistics and reliability analysis of Chevrolet Silverado 2500 based on all problems reported for the Silverado 2500. will not start. When the engine is started cold, regardless of the outside temperature, the idle is rough and there is a noticable power loss. And it is recalling 56 2015 Chevrolet Silverado HD diesel vehicles and GMC Sierra HD diesel vehicles built in a three-week period ending Oct. 3 Vortec with 105,000 miles on it. 1 L Hot or cold hard starting. 2002 chevy 2500hd 6. I now have to give it gas to get it started and can then smell raw gas as if it were flooded. Chevrolet Silverado Owner Manual (GMNA-Localizing-U. Horsepower and torque are important, but when it comes to towing, power isn’t everything. it runs like a champ and you can cut off and crank up with know problem. This is a simple, direct replacement part that takes the place of your existing Chevy Silverado stock air box. I'll test the coil for sure and pull the #1 plug to see if it looks good. Chevy Silverado Hard Starting And Hard Revving Truck - Vido1 is the best way of watch share upload download videos. Research the 2019 Chevrolet Silverado 1500 LT in Statesboro, GA from Franklin Chevrolet Buick GMC. Chevy Silverado Trouble P0452 What Needs to Be Replaced? My 1999 Chevy Silverado failed the smog check because the check engine light is on. Dealership said Fuel Pressure Regulator. It's always started right-up before. Hard to start after it sits up for 12 hours are longer. it runs like a champ and you can cut off and crank up with know problem. 0 hard start. chevy silverado hard starting i have a 99 silverado 5. My dad just gave me his '98 silverado and has been hard to start when it's cold. View pricing, specs and photos for this 2018 Chevrolet Silverado 1500 High Country at Conyers Nissan in Conyers, GA. Chevrolet Silverado Headlight Wiring Diagram; Chevrolet Silverado No Start and Stall; Chevy Silverado misfire; Chevy Silverado No Start; Chevy Silverado no start; Chevy Silverado won’t start; Dead gauges GM trucks; Disable Active Fuel Management; Engine Ticking Noise When Cold; Fix Starter problems; Gauges don’t work – GM; GM PassKey and. I am in the Lee’s Summit area selling my 2001 Chevy Silverado LS z71 4x4. Take advantage of free shipping in the lower 48 United States. I would like to know what is the normal idle speed when my truck is running cold? what is the normal idle speed when my truck is at normal temperature?. Chevy Silverado 2011, Iridium IX™ Spark Plug by NGK®. Learn more about the advanced trailering technologies available on the All-New 2019 Silverado. And it is recalling 56 2015 Chevrolet Silverado HD diesel vehicles and GMC Sierra HD diesel vehicles built in a three-week period ending Oct. It runs great once started.