Question about 1999 GMC Jimmy
My Jimmy starts one day then won't start other days.
I cannot hear the Fuel Pump charge the system when I turn the key.
I have found the Fuel Pump fuse but I cannot find out how to check it if it is good or bad.
The next step would be to check the Fuel Pump Relay.
Is there a way that I could check and change my Fuel Pump Relay easily without going to the garage?
Please help!! i have a remote starter and factory alarm also. i turn the key to on the pump is not heard and my rear brake light also turns on with pump niether do
Swapping relays is the easiest way to check. I'm not sure what is meant by "the correct way" as stated above. A DVOM is used to check the resistance, such as recommended on a Mitsubishi; it should be between 40 and 120 Ohms bteween partular pins and over 10,000 on others. GMs can be commanded with a scan tool to run, but isn't an effective way to check it. They recommend a jumper and test light procedure. Therfore, " the correct way" depends on what you have, and you would need to BClear.
Posted on Dec 03, 2008
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Posted on Jan 02, 2017
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