Fuel pump replacement saga
#1
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Car: 89 RS Camaro
Engine: 5.0
Transmission: Auto
Fuel pump replacement saga
Since we've moved beyond the ECM, injectors and wiring aspects of my fuel pressure problem I thought I'd start a fresh thread.
We managed to get the tank out of the car and the pump replaced yesterday. That's quite a puzzle. I was a little surprised at how far down you have to drop the axle to get that dang tank out. I even had to remove the brake line retainer bolt to get those few extra inches we needed. A removable filler neck would have been nice. Or even better an access panel in the hatch .
The "old" pump was recently replaced but the fuel filter and strainer had not so I replaced those as well. All the wires and connections in the tank looked good so I didn't rewire anything. I was tempted to test the old (and new) pumps while they were out of the tank just out of curiosity but I didn't have the extra time. I also wasn't sure if it was a good idea to run the new pump dry. Getting the tank back in was just as much fun. The retaining straps had been bent a bit so the fit wasn't perfect. We did manage to get it strapped in and put the suspension back together. At that point we ran out of time, but all we have left today are the rear traction bar and bracket, and exhaust.
Looking back I really wish I had tested the wire leads off the top of the tank . That's about the only place I can think of that would have a bad connection that we haven't already tested.
Now that we've done this once it wouldn't take near the amount of time if we had to do it again, BUT I can see why some people take the "access panel" route!
We managed to get the tank out of the car and the pump replaced yesterday. That's quite a puzzle. I was a little surprised at how far down you have to drop the axle to get that dang tank out. I even had to remove the brake line retainer bolt to get those few extra inches we needed. A removable filler neck would have been nice. Or even better an access panel in the hatch .
The "old" pump was recently replaced but the fuel filter and strainer had not so I replaced those as well. All the wires and connections in the tank looked good so I didn't rewire anything. I was tempted to test the old (and new) pumps while they were out of the tank just out of curiosity but I didn't have the extra time. I also wasn't sure if it was a good idea to run the new pump dry. Getting the tank back in was just as much fun. The retaining straps had been bent a bit so the fit wasn't perfect. We did manage to get it strapped in and put the suspension back together. At that point we ran out of time, but all we have left today are the rear traction bar and bracket, and exhaust.
Looking back I really wish I had tested the wire leads off the top of the tank . That's about the only place I can think of that would have a bad connection that we haven't already tested.
Now that we've done this once it wouldn't take near the amount of time if we had to do it again, BUT I can see why some people take the "access panel" route!
#2
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Car: 86-FireBird
Engine: -MPFI
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Re: Fuel pump replacement saga
Yep hehehehe
So here is one bit I TOLD YOU SO
from all those who do
The problem I had was with the bulkhead connector that runs the wires through the body, ended up wiring around it. Figured that out as I could slap the floor back there sometimes which I thought was the pump, and glad I had a hole to go back in there about a dozen times till 100% fixed. Nice when it acted up I could go right into it, in a parking lot and wiggle stuff.
But after I got it, I rewired it and also installed a back up switch to it juice on demand / make it run.
So here is one bit I TOLD YOU SO
from all those who do
The problem I had was with the bulkhead connector that runs the wires through the body, ended up wiring around it. Figured that out as I could slap the floor back there sometimes which I thought was the pump, and glad I had a hole to go back in there about a dozen times till 100% fixed. Nice when it acted up I could go right into it, in a parking lot and wiggle stuff.
But after I got it, I rewired it and also installed a back up switch to it juice on demand / make it run.
#3
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Join Date: Jan 2011
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Car: 89 RS Camaro
Engine: 5.0
Transmission: Auto
Re: Fuel pump replacement saga
After five years of immobile, restless slumber, I'm happy to report that the Camaro roared to life tonight. It took a bit of priming the fuel system, but she fires right up now. There's a nasty lifter tap and an absolute cloud of stuff burning off the headers but the motor actually sounds pretty decent. I'll let it run for a while tomorrow when I can see a little better. No codes thrown
Thanks again everyone for the advice and patience with an old muscle car guy!
Thanks again everyone for the advice and patience with an old muscle car guy!
Last edited by JVince; 01-27-2011 at 08:27 PM.
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