2003 GMC Envoy Q&A
2003 GMC Envoy Question: service engine light on
on 02/07/11 around 13:41 i took my vechicle in for repairs, picked it up on 02/08/11. they replaced the ECT sensor,changed thermostat and rechecked coolant it was okay. seemed to repair service engine light problem, has taken back twice for coolant leaks. whar is causing the coolant leaks and how can it be fixed? - Garnell Frazier
assuming you had no leaks before the repair, it seems that the housing may be leaking and the shop needs to re check there work. if you had a leak prior, then it needs to be checked again to find the leak. there are so many areas it can leak, it would be a crap shoot to guess from here. Roy - mastertech6371
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