kinda stumped...

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bkboatnsleds

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I'd rather it be a fuel pump than an electrical issue.. At least you can track down the fuel pump problem.. Electrical issues suck.
 

M Hankel

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How do you use the pressure gauge to test the fuel pump btw?

Most fuel injection pressure test gauges have a schrader valve (just like a valve stem) attachment. You can connect it directly to the fuel rail. Once you hit the ignition key it should prime the rail to 55+psi. Anything less than 25psi and it probably wont run, indicating a bad pump.

My theory is that the battery started dieing, which placed a greater load on the pump causing it to overheat and eventually fail.

Mike
 

gitrduun

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There is a schrader valve on the right bank and you test it there
 
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A

Alex33

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My theory is that the battery started dieing, which placed a greater load on the pump causing it to overheat and eventually fail.

Mike

^^This is what I think happened, I was just hoping there was a blown fuse somewhere.



OT - Mike, did you get those springs installed yet? How do you like them?


And now back to our regularly scheduled problem.
 

ATL

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correct, the shrader valve is on the passenger side of motor. pull the plastic covers off the motor, and you will see where the fuel rail, and a feed line coming out of it. about 2-3" below the rail, on the feed is the shrader. when my pump went out, it would not hold any pressure when the truck was not cranked. once cranked it would hold around 20 psi for a few seconds, then the pressure would drop to zero. once it started to drop, you could bang on the tank and itd shoot up into the 40s, then back to 20 for a few seconds, then die again. hell, pull those plastic covers off the motor and take it to the parts store. the valve screws on, no tools needed, and itll take u a matter of seconds to find out if the pump is the issue
 

M Hankel

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OT - Mike, did you get those springs installed yet? How do you like them?


And now back to our regularly scheduled problem.

OT - No not yet. I think I'm gonna do the 2" keys up front for now until I can get the DJM 3" arms for the front. With the spacer installed and those rear springs I got from you, it'll be a 2/4 drop for now. I did, however, get one side done for the free travel mod yesterday in preparation for what it will have eventually lol. Ran out of time yesterday before the kids BB game so I'm finishing up the other side today. My only 'metal' sawzall blade decided it wanted to look like a pretzel about halfway into the cut so I finished it up with a cutoff wheel and alot of cursing lol...

Mike
 

gitrduun

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Most fuel injection pressure test gauges have a schrader valve (just like a valve stem) attachment. You can connect it directly to the fuel rail. Once you hit the ignition key it should prime the rail to 55+psi. Anything less than 25psi and it probably wont run, indicating a bad pump.

My theory is that the battery started dieing, which placed a greater load on the pump causing it to overheat and eventually fail.

Mike


Low battery would not make the pump work harder , it wouldn't have enough power to run any hotter. Plus if your battery starts dying , the alternator will take up the slack, you can run the vehicle on a completely dead battery as long as you have a good alternator .
 
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