Question about GMC Jimmy
This is likely to be related to the fuel system. You should first check the fuel pump relay or replace the relay located in the maxi fuse center under the hood. If this fails to work then you will need to replace the fuel filter to insure it's not plugged. If the filter replacement doesn't work then I would suggest that you check the fuel pressure on the injector rail. You can purchase a cheap fuel pressure tester at you local auto parts store. You will connect it to the little valve stem located on the injector rail. With the key in the off position and cycle it to on without starting you should see fuel pressure. If not you can try to start the vehicle to see if you have fuel pressure. IF you have no fuel pressure then it's likely to be a fuel pump.
Posted on Aug 07, 2010
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Posted on Jan 02, 2017
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