2002 Chevy Tahoe. Around 3 years ago the 1st problem started. Anytime you had under a quarter of a tank of gas and let it sit over night it wouldn't crank the next morning, along as you never let it get below a quarter of a tank everything would be fine. Then around 8 months ago, it started to, randomly without warning, quickly lose power then shut off while driving. It's just been getting worse and worse and happening more frequently. When it shuts off I'll coast to the side of the road and try and recrank it, sometimes it will crank right back up and sometimes it will take 10mins before it will. Then after I finally get it cranked up I might go the whole day without having the problem or go a few miles down the road and the same thing happens again. The other day I counted, and on a 60 mile trip it shut off 20 times. I've had the fuel filter and fuel pump replaced and if anything that just seemed to make the problem worse! Any help is welcomed, Thanks in advance!
Did you ever get the issue resolved? I am having the same issues with my 2004 tahoe. Thanks
If a vehicle shuts off while driving down the road. then restarts after about 10 minutes, its a bad crank sensor or the wiring to the sensor. A check engine light may not turn on. If the light is on. You can take it to any auto parts store to have the code read by a scanner for free. Auto-zone, Advanced ETC. Its worth a try! But first check the fuel pump relay, It may be getting hot and shutting down pump. Try swapping a relay of the same type, if it is ok, thats the problem. Hope this helps!
SOURCE: 98 Ford F150 w/4.6l Wont start. Hear fuel pump
have diagnostic codes checked to see if you have a cam or crank sensor fault. make sure fuel pressure is at the required pressure, just testing to see if you have fuel at the valve is not enough. replace all spark plug wires. if you replaced two then all are just as old and even when they "look good" does not qualify as "they are good". Replace coil pack. start up drive away happy
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Mine is found the same thing and Chevy is GUESSING it's the fuel compensation sensor I don't like guesses especially when it's a $700 guess Dont know what to do !!!!!
Chevy Master what do you recommend ????
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