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-   -   fuel pump relay overheating (https://www.truckforums.com/forum/chevy-silverado-gmc-sierra-forum-11/fuel-pump-relay-overheating-7944/)

jonnyreiser 09-03-2008 02:27 PM

fuel pump relay overheating
 
hello, just wandering if anyone else might have an idea as to whats wrong with my truck. its a 97 chevy silverado 4x4 350 automatic. its got 194,00 miles and ive had to fuel pump replaced twice in the last 3 years. the latest is about 3 months old. the problem is the fule pump relay keeps over heating and causing the truck to shut off. i have a fuel psi guage on it and i can see it drop to about 40 psi and it wont run. i bought a new relay and stuck it in there and it worked good for about a month then started up again. when its working the psi is 60-63. any clues as whats going on?

thanks in advance, j

jcbst12 09-04-2008 11:45 AM

RE: fuel pump relay overheating
 
I'd say check the fuse for the fuel pump circuit and make sure it is the correct amperage. Other than that I would say to check and double check the fuel pump circuit for bad wires. What brand was the first fuel pump you replaced the OEM one with?

jonnyreiser 09-04-2008 04:45 PM

RE: fuel pump relay overheating
 
thanks for the tip. fuse is ok. i did find the wiring to be burned up underneath the fuse/relay center. i repaired that and have not had any trouble yet. im not sure what brand it is in there. i had midas do it for me cuz it broke down about 50 miles away from home. oh well,kep on truckin!
thanks, j

jcbst12 09-05-2008 07:46 AM

RE: fuel pump relay overheating
 
Welcome.

That should solve the problem. Not uncommon for relay wires and harnesses to get burnt up or corroded in vehicles, even newer ones.


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