1stSHO
Asian Lover
OK, its probably been asked alot, who has dne a fuelpump replacement. I picked one up online, i cant remember which one i got, but is it a hard job to do on the ground or is it better to pay someone to do it?
Fuel Pump Replacement
- Thread starter 1stSHO
- Start date
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awb85
New Member
No its not hard — even though I had help from a friend who knew what he was doing, its not that bad.
Before dropping the tank, run the gas as low as you feel safe running it — i had a couple gallons in mine.
Just get teh rear of the car jacked up so you can lie under the gas tank.
First you disconnect the fill and vent line they're two black hoses about 8" long. (If Your not replacing the tank you may as well just leave them attacthed to the tank). After you loosen the hose clamps pull the hoses off. (HINT: they make a neat little tool for breaking the seal between rubber hoses and metal).
The bolts holding the tank straps in are likely rusted, so what he had me do is squirt some PB Blaster on, back it out, spray some on the threads, screw it back in (works some of the stuff into the clip), un bolt it further, spray threads again, screw the bolt up a little, etc.
There's about 2" of bolt above the clip that is open to sand/salt and whatnot. By backing the bolt in and out while spraying some PB Blaster on you can work it loose without damaging the clip the bolt threads into (this is tiedious, but not that bad).
After the straps are ready to come off, either get under the tank or put some blocks. ( I suggest using blocks so that you have a visual on all the connections ontop of the tank). There's a send and return line to the tank — you ahve to disconnect these. There's also a vapor line. After all the lines are disconnected you can haul that tank out !
(If you happen to have a refrigerator in your garage be VERY careful. The gasoline vapors will crep along a concrete floor — a refrigerator turning on in the vicinity could be potentially hazardous ).
Use a BRASS punch to get the retaining ring off and pull the fuel pump assy. out of the tank. Installing the new pump is pretty self explanitory. After you're set, start putting it all back together.
When all is said and done, turn the key on/off at least 3 times to prime the pump and fill the lines back up with fuel. Turn it on and check for leaks.
Before dropping the tank, run the gas as low as you feel safe running it — i had a couple gallons in mine.
Just get teh rear of the car jacked up so you can lie under the gas tank.
First you disconnect the fill and vent line they're two black hoses about 8" long. (If Your not replacing the tank you may as well just leave them attacthed to the tank). After you loosen the hose clamps pull the hoses off. (HINT: they make a neat little tool for breaking the seal between rubber hoses and metal).
The bolts holding the tank straps in are likely rusted, so what he had me do is squirt some PB Blaster on, back it out, spray some on the threads, screw it back in (works some of the stuff into the clip), un bolt it further, spray threads again, screw the bolt up a little, etc.
There's about 2" of bolt above the clip that is open to sand/salt and whatnot. By backing the bolt in and out while spraying some PB Blaster on you can work it loose without damaging the clip the bolt threads into (this is tiedious, but not that bad).
After the straps are ready to come off, either get under the tank or put some blocks. ( I suggest using blocks so that you have a visual on all the connections ontop of the tank). There's a send and return line to the tank — you ahve to disconnect these. There's also a vapor line. After all the lines are disconnected you can haul that tank out !
(If you happen to have a refrigerator in your garage be VERY careful. The gasoline vapors will crep along a concrete floor — a refrigerator turning on in the vicinity could be potentially hazardous ).
Use a BRASS punch to get the retaining ring off and pull the fuel pump assy. out of the tank. Installing the new pump is pretty self explanitory. After you're set, start putting it all back together.
When all is said and done, turn the key on/off at least 3 times to prime the pump and fill the lines back up with fuel. Turn it on and check for leaks.
awb85
New Member
Interesting Note:
Recently I had to replace my leaking gas tank so I upgraded the fuel pump as well.
Although my new fuel pump came with a new oring, the oring which came with my new tank had a BIGGER diameter ( hence, I used the one that came with the tank).
I wonder if this has anything to do with people complaining about that seal leaking when they somtimes install a new pump; and having to bend the tabs on the retaining ring to make up for it?
Just a thought.
Recently I had to replace my leaking gas tank so I upgraded the fuel pump as well.
Although my new fuel pump came with a new oring, the oring which came with my new tank had a BIGGER diameter ( hence, I used the one that came with the tank).
I wonder if this has anything to do with people complaining about that seal leaking when they somtimes install a new pump; and having to bend the tabs on the retaining ring to make up for it?
Just a thought.
It's not bad and shouldn't take more than an hour or two. What pump you putting in? Don't put in more than 155lph on a stock car. Fuel pressure will be messed up if you do. I just use the mustang pump. It's a different sock but it works fine.
1. Jack the rear of the car up high and put jack stands under the rear subframe boxes.
2. Open the gas door and take the cap off and take out the three bolts that hold the filler neck in.
3. Climb under car and loosen the hose clamps to the two pipes going to the tank and the one bolt holding the two metal pipes to the car. Pull the filler neck pipe out of the rubber hoses. You will probably have to get under them with a screwdriver and do a little prying.
4. Put a jack with a board or something under the tank to support it. It's not heavy if there isn't much gas in it.
5. Heat the bolts with a propane torch until they are pretty hot if you have a lot of corosion under your car and unbolt them.
6. The tank will drop down and you will see the fuel lines going to the pump. Pry under the plastic tabs that hold the fuel lines on, carefully. Once you get those off, the lines will pull off.
7. Take a drift or a screwdriver and knock the collar ring loose and the pump will lift out of the tank. Pay attention to how it is installed.
8. When you install the new pump I highly recommend that you solder the connections. I didn't reuse the little bell diaphram off the original pump. It wouldn't fit with the pump I got.
9. Put back together in reverse order.
Here are some pictures. Sorry for the poor quality. These were taken a while ago with a crappy camera.
pump01.jpg
pump02.jpg
pump03.jpg
pump04.jpg
pump05.jpg
pump06.jpg
pump07.jpg
Will
1. Jack the rear of the car up high and put jack stands under the rear subframe boxes.
2. Open the gas door and take the cap off and take out the three bolts that hold the filler neck in.
3. Climb under car and loosen the hose clamps to the two pipes going to the tank and the one bolt holding the two metal pipes to the car. Pull the filler neck pipe out of the rubber hoses. You will probably have to get under them with a screwdriver and do a little prying.
4. Put a jack with a board or something under the tank to support it. It's not heavy if there isn't much gas in it.
5. Heat the bolts with a propane torch until they are pretty hot if you have a lot of corosion under your car and unbolt them.
6. The tank will drop down and you will see the fuel lines going to the pump. Pry under the plastic tabs that hold the fuel lines on, carefully. Once you get those off, the lines will pull off.
7. Take a drift or a screwdriver and knock the collar ring loose and the pump will lift out of the tank. Pay attention to how it is installed.
8. When you install the new pump I highly recommend that you solder the connections. I didn't reuse the little bell diaphram off the original pump. It wouldn't fit with the pump I got.
9. Put back together in reverse order.
Here are some pictures. Sorry for the poor quality. These were taken a while ago with a crappy camera.
pump01.jpg
pump02.jpg
pump03.jpg
pump04.jpg
pump05.jpg
pump06.jpg
pump07.jpg
Will
Bizzy
SHO Member
- Joined
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Take rear seats out, cut hole, pull back flap. Remove pump, replace pump. Put flap back down and seal.
1stSHO
Asian Lover
Bizzy said:
Where do you cut the hole? I know under the seat, but is there a place were the factory put were to cut?
masho95
got Zex?
No it wasn't a factory spot to cut open if that's what you are asking. Just do a search and I'm sure the thread will come up.
Bizzy
SHO Member
- Joined
- May 1, 2001
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- Reaction score
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Here's the thread when mine was done.
http://www.shoforum.com/showthread.php?t=609&highlight=fuel+pump
http://www.shoforum.com/showthread.php?t=609&highlight=fuel+pump
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