Question about 2004 Chevrolet Malibu
Replaced fuel pump and had theft system replaced about six months ago.
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Posted on Jan 02, 2017
Try what we call a hard boot to the pcm. Disconnect the positive cable wire from the battery, enable the anti-thift system and than connect the positve cable back to the battery and see if that works
Posted on Apr 29, 2009
These 6.0 diesels had bad injectors to start with, so I would definently have those checked, how many miles do you have on it ?
Posted on Feb 04, 2010
If you've replaced the fuel pump recently, I would check the fuel filer as well as the fuel pump relay. You can take the fuel filter off and blow into it in the same direction as the fuel flow and it shouldn't be restricted. The fuel pump relay is located in the fuse block underneath your hood close to the firewall. Before trying either of the above you may also make sure the fuel pump cutoff switch has not been activated. These are usually located on the firewall or in the rear of the vehicle behind a panel. It will look like a push button switch that you just push in to reset it. Let me know if any of this helps.
Posted on Apr 02, 2010
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