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Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by ALLDATAdiy.com users over the course of many years.
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  Jim Grant's Tech Tips

87 Chevy Pick-up, Fuel Pump Problems
Q: I have an ‘87 Chevy pickup that won't start. It will run on starting fluid briefly. I hear or see no action from the pump. I held a steel bar from the tank to my ear and had someone turn the key on with no resulting noise. I have power to the pump relay but can't get at the pump without removing the tank. It's such a nasty job. Is there a way to check the pump without removing the tank? Could it be a sender, a fuse, or the computer? When I parked the truck it was OK. The next A.M. it wouldn’t start. I really need help on this one....Bob

A: Of course check the fuse first! If the fuse is good, go to the electrical connector at the gas tank, there is enough slack in the wiring harness to unplug the connector to the fuel pump to check for electrical power. Test for power being supplied when the ignition key is first turned on and while cranking the engine over. If electrical power is available yet not a sound from the fuel pump, you likely need a new fuel pump. You’ll have to remove the gas tank to replace the fuel pump on your vehicle and be sure to replace the fuel filter as well to perform a complete service.

 
     
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