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Fuel pump replacement '95 Monte 3100


Joe T. Squirrel

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Hey all,

 

My car just hit the big 100,000 miles and hasn't been able to get out of its own way lately. I hooked up a fuel pressure guage and measured zero pounds with the key turned on and then started the car (with a bit of cranking) and the pressure slowly built up to around 25 lbs. I don't hear the pump turn on at any time.

 

I went ahead and replaced the fuel filter and pump relay, but no go - looks like I'm in for a pump replacement. I'm curious if anyone has done this job and has any tips? I have my trusty factory service manual, but wanted hands-on advice just in case ("Don't touch the white wire! I did and now they call me 'Three finger Murphy'" :) )

 

Thanks,

 

JTS

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Welcome aboard!!! :D

I've personally pulled a fuel tank out of a A-Body (1988 Celebrity) for a fuel pump and the hardest part was reconnecting fuel lines after the install. Some were plastic and other were metal. Make sure to mark / tag all of your fittings. Other it's not that big a deal; raise and support the rear end and drop the tank down. Piece of cake. Best of luck, and again, welcome!

 

- Erik

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drain the tank as much as possible. If it's not run almost dry you'll have to jump the relay to get the gas out using the stock fuel pump. You don't have to worry about disconnecting any fuel lines other than the fuel filter. Anyway, good luck!

 

Tim

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Welcome! I have done this, but I don't know that I have anything to add...

 

It's much easier with an empty (or near empty) tank. You'd be surprised at how much the tank weighs even when there's just a couple inches of fuel at the bottom. I used my hydraulic jack to help lift the tank back into the car. Also be careful not to drop the tank, as the plastic baffles inside could break. Other than that, good luck!

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Hey all,

 

Thanks the warm welcome - friendliest board I've ever seen! 8)

 

I hope to get into this mess today or tomorrow since I have a cold (lukewarm) front passing through my end of the world - 80 degrees with low humidity beats 95 degrees any day!

 

Thanks again and I'll post back with the results.

 

JTS

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Im just curious where in KY you are. And yeah, here in far southwest KY, it is EXTREMELY nice today, lowER humidity and temps arent too bad either

 

Robby

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Hey robby1870,

 

I'm in Louisville watching thunderstorms roll through right now - they're calling for mid-70's tomorrow, so that sounds like a good a time as any to be rolling under a car doused in fuel. :?

 

Where's that fire extinguisher? :lol:

 

I looked up Fulton - man, you're way down there. I've been to Land Between the Lakes a time or two - real nice area.

 

JTS

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Oh yeah, KY lake (around LBL) is very awesome. In fact me and some friends are going there tomorrow to do some camping. Yeah, I am way down there. Im real far away from anything cool, lol.

 

Robby

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Hey all,

 

Everything went well - I have the gas tank out in the center of the garage and have all the parts necessary except for a new pulse dampener (due in tomorrow). I have read through the archives and saw that some people have simply discarded the pulse dampener and replaced it with a length of fuel hose, but I'm curious if anyone recommends reusing the old one? It doesn't appear to be a part that can "go bad" but I suppose there's an off chance that metal particles, etc. could be caught in it?

 

Also, I ended up with a Carter (Federal-Mogul) pump for $75 - any opinions on quality? Used to be in the 70's you heard about Carter all the time, but I don't know much about them now. I suppose if Carter is known to be junk, I can take it back and try again.

 

JTS

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I thought about bypassing it too, but I went ahead and bought a new one.

I'm not sure why, I THINK I read something on the web or the newsgroups that said over time the fuel pressure regulator could be weakened by the pulses if the damper isn't present.

I figure it must be true, after all, that little damper is more expensive than a length of rubber fuel hose, and GM isn't into spending money unless it's absolutely necessary.

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Hey all,

 

Bringing this to the top for the last time and then I'm done! :)

 

It's all buttoned up - I went ahead and cancelled the order for the dampener since I found it at another parts store (last one they had). Suffice to say, the car runs and runs well. So I will pat myself on the back.

 

The hardest part? Reconnecting the *!%@$ negative battery terminal. The only thing I had done was move the structural bar that runs diagonally across the top of the battery. Whoever decided to use a side post battery buried under 30 different objects needs to bite me with gusto! I have a friend with a POS '96 Thunderbird (uses the good old top-post-buried-under-nothing design); I could have relocated the battery to the trunk in it, and it still would be faster than dealing with GM's design. PITA.

 

Thanks again the help and welcome!

 

JTS

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