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Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra Stalling Problem
73 messages, Last post on Oct 29, 2009 at 8:44 PM
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2002 Chevrolet Silverado 1500 4x4 Z71 5.3 Vortec Engine. 109000 miles. Only on cold mornings/days does it stall and idle really rough and missfire. Here is the strange part: if I unplug the MAF sensor, it runs fine. If I plug it back in, goes right back to crap. So I thought i had found my problem and replaced the MAF Sensor but to my surprise it did the same exact thing. It is throwing a coolant temp sensor code so maybe that is the culprit. My question is if it is a bad coolant temp sensor, why does it run fine when I unhook the MAF? I also tried unplugging the coolant temp sensor but it still does the same thing if the MAF is plugged up. |
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Hi, I am looking for advice on my truck. I went out and cranked it for work this morning and it was a real hard start. I let it warm up and when I went back out to leave I started having problems. Right when I put it in drive and gave it gas, it stuttered /cut out and what sounded like valves clattering could be heard. Every time I got on the gas good it just cuts out and makes that sound. I tried it again later and it didn't cut out as much only when I really got on the gas hard it did, but first thing this morning it was doing it when I barely gave it gas. It feels like a fuel issue, maybe the fuel/air mixture issue or I am beginining to wonder if could be my timing chain? Any help is appreciate. |
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Replying to: neelaviat (Jun 12, 2008 5:19 am) ptmcn
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Replying to: ptmcn (Feb 24, 2009 4:55 pm) |
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Replying to: roundrockpaul (Feb 10, 2009 11:47 am) |
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Hi folks! I´m new to this forum and I am writing on behalf of my father who owns a Chevy 1500 Silverado with a 6,5 litre V8 diesel engine. This is his pride and joy...but unfortunately he is having major problems with it. The truck is, for lack of a better word, quite moody. It will occasionally start ok and run with no problems whatsoever - no stuttering or other problems, and then suddenly stall and die. It can be really hard to get it started after this has happened. Now...I´m no mechanic but I will try to relay and translate what he has done with the truck so far: -Fuelfilter is replaced -Fuelpump attached just beside the tank is also replaced -Tube/pipe inside tank (suction-pipe?) is also replaced. Battery is quite good and not yet a year old. Outside temperature or humidity doesn´t seem to be an issue (damp weather and so on). Strange thing is that the truck stalls/dies without warning....no spluttering or misfiring etc. My father suspects an electronic fault...and before we go to see the mechanics I would like to hear any advice you can offer. I´m thankful for any input that could get my fathers beloved truck up and running again...  Best regards Patrik
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Replying to: subevent (May 26, 2009 9:43 am) 
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Replying to: vsowers (Jun 04, 2009 8:22 am)  I suppose my father needs to take it to a garage somwhere...just to get it checked. I have read a lot of forumposts but almost everyone with stalling problems seems to have a spluttering, misfiring truck or electrical trouble. This one just dies...completely ..in one go. Not so much as a hiccup even...  I guess troubleshooting by professionals is the next step. Did you find out whats wrong with your truck then? |
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