Having problems with your 1999 GMC Jimmy ?
1999 GMC Jimmy won't start.
\015 My Jimmy starts one day then won't start other days.\015\012\015\012I cannot hear the Fuel Pump charge the system when I turn the key.\015\012\015\012I have found the Fuel Pump fuse but I cannot find out how to check it if it is good or bad.\015\012\015\012The next step would be to check the Fuel Pump Relay.\015\012\015\012Is there a way that I could check and change my Fuel Pump Relay easily without going to the garage?\015\012\015\012Please help!!\015\012\015\012i 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\015
Swapping relays is the easiest way to check. I'm not sure what is meant\015\012by "the correct way" as stated above. A DVOM is used to check the\015\012resistance, such as recommended on a Mitsubishi; it should be between 40 and 120 Ohms bteween partular pins and\015\012over 10,000 on others. GMs can be commanded with a scan tool to run,\015\012but isn't an effective way to check it. They recommend a jumper and\015\012test light procedure. Therfore, " the correct way" depends on what you\015\012have, and you would need to BClear.
Repair Help & Product Troubleshooting for 1999 GMC Jimmy
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