Fuel pump problems

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Joeyk94

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Joined
Dec 7, 2013
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Location
Whittier California
CALLING ELECTRICAL GURUS
I need your help
My 97 has had it fuel pump changed an ungodly amount of times these past 2 years, I can honestly count 10 times off the top of my head.
I’ve literally changed almost everything at first it was burning the relay up in the fuse box but not pop in the 25 amp Ecm fuse that powers it. So I pulled the pins going to it and rewrites it to a regular 5pin Bosch relay with a new power and ground. That stopped it for about 1 year prior to these last 2 years.
Then I went threw 3 in one month so I did the updated spider unit, new relay, new filter, made sure the lines were clear and took a wire wheel to every frame ground on the truck.
When I was going riding on New Years I had the heater on going 70 for about 2 hours tank was about 1/2 full. Then all of sudden it dies and won’t start on the side off the off ramp. Dropped the tank had my buddy go to the nearest orileys an warranty mine. We were back on the road again in about 45 mins. I’m to the point I can do the swap itself in about 15 mins.
Well today I had the heater on and it started to act like it was leaning out taking off from a light kinda hard. At that moment I had a light go off in my head every-time this thing kills a fuel pump either the ac or heater was on. So I turned it off and it wasn’t doing it as bad but still can tell it didn’t help it but it was fine 10 mins before.
I’ve tried a fuel pump from spectra and carter (pep boys), precision power (orileys) AC Delco and Delphi (autozone) every one of these pumps have died.
My question is could the fan from tha hvac actually be causing this, and how can I fix this?


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