Question about 2004 GMC Envoy
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Posted on Jan 02, 2017
SOURCE: engine stalls when acceleration
sounds like poss throttle pos sensor prob./ could also be problem w/fuel pump not pumping enough fuel at high speed. poss fuel filter clogging also. have someone check pump pressure.
Posted on Nov 11, 2008
SOURCE: Gmc Envoy 2004 Seat heaters
I have the same problem with my 2004 HD Sierra. I found that the "MBEC" 50 amp fuse in the under hood fuse box had blown. Replaced that and it works now. This has happened twice in 2 years.
Posted on Dec 30, 2008
The battery is on the right side behind the fuse box. You need a metric set to undo the 3 screws. Theres one that attaches to the body, one to the bar that goes along the top, and theres one on the left side below the vacuum hose and air induction. After you've taken out those three, you should lift the whole thing out(battery and shroud) together. It's hard to take the shroud off before you lift the battery out. After that, you have to pry the shoud off the battery. The two terminals in the back make it hard. Then just go to any auto parts store and they'll give you a new one.
Posted on Jan 28, 2009
Most probably your condensate drain is blocked. Check to see if the usual dripping at the left front tire is continuing or not (after running the A/C and the vehicle is stopped). If not you have a choked drain pipe. The drain hose is located to the left of the engine compartment just below the AC lines coming out of the firewall. There is a rubber tube about 1" diameter and it has a small plastic tube 3/8" coming out from the bottom side of the larger tube. Please take care accessing the tube as there are pipes and tubes really hot in the vicinity. It is always a good idea to wait till the engine has cooled down. The drain tube sometimes gets blocked and causes leaking onto the rug area inside the truck, just pull the small tube out by pulling it down and clean the small/large tube. If there is any water from the AC it will drain out.
Posted on Aug 14, 2010
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