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Old 12-01-2012, 04:31 PM   #1
Malamute
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Fuel pressure regulator question

Rookie question as I don't have much experience w/ electric fuel pumps. I noticed yesterday that the regulator has a leak, I can't really tell what part it's coming from.

I want to pull it but don't know how much fuel I can expect to come shooting out if there is pressure built up. Any steps I need to take before I remove it?

Thanks!
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Old 12-01-2012, 05:10 PM   #2
mr48chev
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Re: Fuel pressure regulator question

Any is too much. That's too much of a fire hazard to risk.

Check to make sure it's the unit it's self and not the fittings or connections to it though.
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Old 12-01-2012, 05:18 PM   #3
Malamute
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Re: Fuel pressure regulator question

It's definitely not the bottom fitting but may be the top. How do I drain the line to pull it if need be? That's what has me confused.
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Old 12-06-2012, 05:35 PM   #4
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Re: Fuel pressure regulator question

First chance I've had to get under the truck since I noticed the leak. It seems to be leaking from the regulator set screw and lock nut. I pulled them out, cleaned the threads and put it back in and it still leaks.

Time to just replace it? Teflon tape is on the fittings coming in and out of the regulator but this part doesn't look like it came that way and I don't want to half ass it if replacing it is the better option.
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Old 12-06-2012, 05:50 PM   #5
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Re: Fuel pressure regulator question

It sounds like the diaphragm inside the regulator is leaking. Unless it's rebuildable you'll need to replace it.
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Old 12-06-2012, 06:01 PM   #6
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Re: Fuel pressure regulator question

Thanks, that's what I was looking for. I don't know much about the electrical stuff as I've never had one before.

I'll pull it and replace it this weekend.
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