Anyone else have fuel pump overheating issues?

[zachattack_5491]

I live in Albuquerque, NM and the temperatures have been pretty high lately. I've gone through 4 fuel pumps in a year. I notice that I only have problems when ambient temperatures are around 90+ degrees. I am running an Airtex E8235 from autozone. When my car stalls, I can hear the pump changing pitches like it's turning off and on. Has anyone ever run some kind of fuel cooling system? Do you think that's overkill? My plans in the near future are to install a better radiator and fans along with an oil cooler, which may help a bit. I'm also getting a Walbro on Wednesday, maybe that will run a little better.

My theory: All pumps must have some type of fail-safe temperature at which they shut off to avoid some type of fire/explosion inside the tank. When I'm running less than a quarter tank, all of the fuel in the tank probably circulates at least once per hour (probably more). So as it runs through the fuel rail it gets slightly heated by the manifold temps and gradually heats the gas in the tank. Once it reaches a certain point the fuel pump turns off.

Anyone have any input on that?

[zachattack_5491]

Update: I now have 3/4 of a tank and after driving 40 minutes on the highway it starts doing the same thing. The pump is hardwired with a dedicated power and ground. There is no reason for it to be acting this way other than it is a poorly manufactured piece of crap. I literally just bought and installed this 11 hours ago. However unlikely it may be, I blame the pump and not my install or setup.

[SullivanRacing06]

check all the lines, the fuel filter, fpr for being clogged, sounds like your having a large restriction in your fuel system thats making the pump work harder

[ka24eracer]

I have a similliar issue in my car and I cant seem to find the problem , maybe we dont have a good voltage at the pump ...Go see my thread in the RB section

[zachattack_5491]

I agree that there seems to be some type of restriction. For some reason, if I take off the return line and blow all the gas into the tank it runs fine for a few miles. But that doesn't make sense because my lungs can probably only push 5 psi max, why wouldn't the pump be able to handle that? I cleared out the lines and half a** tested my fpr because I don't have a gauge and everything seems to be fine. My voltage is also fine.

[nifares240]

ever tried using a different pump like a walbro. you should stop driving the car with low gas. gas keeps the pump cool.