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2006 GMC Envoy Xl - Page 2 Questions & Answers
2006 Envoy stalling when idels and won't stay running
Clean your Throttle body and pay attention to the Idle Air Control (IAC) valve passageway to try to clean the IAC. A dirty or faulty IAC will cause your engine to stall at idle, the job of the IAC is to open the passage way through the throttle body to regulate the amount of air to enter the engine to keep it from stalling when the Envoy is at idle.
Start with the simple and clean the throttle body and inspect any loose or damaged wire leads to the throttle body. Replace or repair any signs of damage.
Thank you for using Fixya and good luck.
Replace timing chain
Timing chains last the life of car or truck belts need to be changed every 100,000 km or more. Also what's the problem.
Oil pump replacement
This is a major job. you have to remove the engine mount bolts, raise the engine to the point that it's raising the vehicle, remove the oilpan on the bottom of the engine, remove the oilspash pan, then remove the oil pump. Are you sure this is what is wrong? Oil pumps last for almost ever. If you ran it out of oil, it is most likely main and rod bearings. If you didn't run it out then it could be an oilsending unit gone bad. If you give me more details I can narrow it down. your year should not need an oil pump.
Randy
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