Question about 2004 GMC Envoy
Posted by Anonymous on
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Posted on Jan 02, 2017
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
SOURCE: E-vac system on fuel tank
P0452 = Generic Evaporative Emission System Pressure Sensor/Switch Low Input.
Since you have a 2004 Envoy, you probably have the dreaded bad 2004 PCM. It is part of the emissions system so it is covered under the emissions warranty (although it's already 2009 and i'm not from the USA, so I'm not aware if that's still applicable).
But in other words: contact your dealer !
Posted on Mar 22, 2009
There is a recall on the panel Cluster... call your dealer and have it checked out.. mention the recall... www.lemonauto.com
Posted on Jun 05, 2009
It means the car has not reached operating temp. The computer wants the engine a certain temp so it can go into "closed loop" where it fine tunes the fuel mix for optimum economy and emissions. If it cannot reach that temp it sets that code. You either have a low coolant level or a stuck open/missing thermostat.
Posted on Jan 10, 2010
Tips for a great answer:
Aug 31, 2017 | 2004 GMC Envoy
Aug 25, 2014 | 2004 GMC Envoy
Feb 09, 2014 | 2004 GMC Envoy
Jul 14, 2013 | Cars & Trucks
Please see my tip at http://www.fixya.com/cars/r5932051-check_engine_light_check. These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.
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