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SUVs GMC Envoy GMC Envoy Maintenance and Repairs
95 messages, Last post on Nov 15, 2009 at 7:14 PM
You are in the GMC Envoy Forum. Your Hosts are steve_ & tidester
| Got problems? Got solutions? Discuss them here! | |
On my GMC Envoy, my outside air temperature shows a minus number when it's about 90 degrees outside. My air conditioner doesn't come on because of this. Can I have the sensors removed and manually turn the air conditioner on when I need to? Should it still cost me about $500.00 in labor to have this done? Just got a quote from the dealer for a new sensor - part is about $100, labor is about $500.  BTW, was told by the dealer this is a part that doesn't usually break  
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Replying to: tidester (Aug 09, 2006 8:42 pm)
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Does anyone know if fuel saving modules work. The ones that say it improves ur gas mileage by 5 to 10mph?....anyone have experiance. I just bought a new envoy xl and gas is the only bad part...i only get like 12 to 14mpg because i drive city soo much. let me know any solutions or if the performance module is effective.
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I have a 2002 Envoy XL. The engine light came on and the engine began to miss badly. I had my buddy who is a decent "old school" mechanic take a look at it. He ran a diagnostic test on it and it show that "cyclinder 1 was misfiring". He suggested I take it up to Advance Auto and get their free diagnostic to confirm. I did and got the same diagnosis. So my buddy took it apart at the coils and said they were all firing but he demonstrated to me that the throttle body was not opening when you gave it gas. He said I probably would need a new motor for the throttle body but that there was some electrical signals that might send a message to the throttle body not to open such as the drive train, etc. Can you help me with this? Thanks in advance.
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Replying to: gujushah (Sep 28, 2006 8:55 am) You may be interested in this discussion: Gas Saving Gizmos & Gadgets tidester, host |
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| Our 2002 Envoy will constantly look for a CD to be in the CD player. If we take the cd out and listen to the radio, it will make this whining sound, and sometimes interfere with thr radio. As long as we leave a cd in the player all the time, its fine. Has anyone else seen this? | |
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When I put the climate control selector (floor, panel, mix, floor+defrost, defrost) to defrost, the engine RPM goes down for a second then back to normal. This repeats until the engine stalls. This also happens when the AC is turned on. I suspect a vacuum leak but have been told it may be the AC unit itself. Has anyone had experience with this issue? Thanks, Bill
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| the recurculator will shut off after 10 min.and will not come back on. till you push the buton again and shuts of after 10 min | |
I have a 2002 ENVOY with a "service 4 wheel drive" light illuminated. Dealer said it indicates a transfer case control module issue. I checked the switches actual connections. Now.. I want to locate it physically to replace it. (additional note: I just had that same issue with a 2000 Chev Silverado.) I have "keyworded" every aspect of the phrase to try to get help. All I get are OEM parts locators, it seems. Can someone lead me to a chassis electrical (brakedown) site/link? Or better yet tell me of it's location.
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