20 Most Recent 2009 GMC Envoy - Page 9 Questions & Answers


Problem could be a bad oil pressure sensor or the oil pump is failing. A mechanical oil pressure gauge needs to be hooked up to verify actual oil pressure. Problem could also be a bad stepper motor in the instrument cluster that drives the gauge.

GMC Envoy Cars &... | Answered on Apr 20, 2014


Check fuel filter, air filter, sparkplug wires.

GMC Envoy Cars &... | Answered on Apr 16, 2014


it sound like the oil pressure sending unit is bad Had a 91 chevy do the same thing

GMC Envoy Cars &... | Answered on Apr 05, 2014


If mileage is over 100K and plugs have not been changed, it is time. Could also be a bad coil pack or vacuum leak at intake manifold.

GMC Envoy Cars &... | Answered on Apr 03, 2014


It take quite a bit of effort to release the shaft. Try harder.

GMC Envoy Cars &... | Answered on Apr 03, 2014


It is definitely an air leak, could be the hoses or the bags. Needs to be troubleshot.

GMC Envoy Cars &... | Answered on Apr 03, 2014


Can you see the smoke colored sensor near the windshield? I've had one break and fall down which caused this exact problem. If you can see it, pull the plastic trim piece off, make sure the connections are actually connected, have seen these come unhooked.

GMC Envoy Cars &... | Answered on Mar 24, 2014

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