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So the lesson learned here is don't run your fuel tank below 1/4 tank or the probability of burning up a fuel pump increases significantly.........GOT IT!
Ed
I have run my tank down to "reserve fuel" a few times..................is that really the cause of failure?
Yes it can cause failure...my car is at GM right now b/c i went about 40 miles after the Check Gauges light came on (way after reserve fuel kicks on)
the fuel pump is kept cool from the fuel inside the tank...when it gets low on fuel there is nothing to cool the pump so it heats up and results in failure
Well I'm keeping my fingers crossed..............I might be getting GM to pick up the tab on this one, a contact of mine has spoke to an area service manager and so far it looks like I might be in luck and only have to pay a small fee ($100.00) to get this taken care of.
Also on a side not I found a pretty good company that I can get a 6/100 bumper to bumper warranty for the next unforeseen issue I may have.
As I am in the warranty industry I was able to get a huge discount.
Just wish I would have found them before this, so I know it would have been covered, but hopefully this thing with GM will save my butt on this one.....
interesting tread. i actually ran mine out of fuel once. tricky gas guage. had not heard of the pump failure but that makes sense. won't let that happen again.
Yes it can cause failure...my car is at GM right now b/c i went about 40 miles after the Check Gauges light came on (way after reserve fuel kicks on)
the fuel pump is kept cool from the fuel inside the tank...when it gets low on fuel there is nothing to cool the pump so it heats up and results in failure
it was my fault...guess i learned the hard way!
*gulp* I've ran it down to reserve fuel here and there was well; oops, never again
From: Tinker till it blows... then back it off a notch, maybe!!
St. Jude Donor '08
I have an 03 1/2 with the ffs system
I dropped the tank in under 45 minutes...10 minutes was spent just looking at it.
If you have the gm service manual, just ignore the sections about dropping exhaust and drivetrain
There are some O rings and a spacer in the crossover that you don't want to lose, and the trick is to twist the connector, then push up on the crossover tube until it disengages.
Best bet is to find a good mechanic who has done this before. Labor should be no more than several hours to R & R the tank.
Question: Camaros and Trans Ams have the same type of in-tank fuel pump (different location), and they have always had a relay which turns the pump OFF after 10 seconds of free running (no presure/no gas) to keep the fuel pump from burning up (due to no cooling fuel). So....WHY would GM develop such a simple safety system for the F-body cars and NOT use it (or something similar) on their halo car, the Corvette???
I dropped the tank in under 45 minutes...10 minutes was spent just looking at it.
If you have the gm service manual, just ignore the sections about dropping exhaust and drivetrain
There are some O rings and a spacer in the crossover that you don't want to lose, and the trick is to twist the connector, then push up on the crossover tube until it disengages.
Best bet is to find a good mechanic who has done this before. Labor should be no more than several hours to R & R the tank.
Getting the bucket out of the tank can be a PITA
Thanks for the respond, if this thig with GM doesn't pan out that's what I will probably do, my Mech. knows the little "tricks" on this one so if I do have to pay for this one it won't be anything near 1800. With pump and all shouldn't be more than 4-500.......
Question: Camaros and Trans Ams have the same type of in-tank fuel pump (different location), and they have always had a relay which turns the pump OFF after 10 seconds of free running (no presure/no gas) to keep the fuel pump from burning up (due to no cooling fuel). So....WHY would GM develop such a simple safety system for the F-body cars and NOT use it (or something similar) on their halo car, the Corvette???
I actually brought that up with my mech. last night on this one and he said that the pump is actually located in a little tub inside the tank and that area always has fuel in it even if you ran out of fuel (the car would die before this area ran dry) so according to him low fuel would not be a likely cause of the failure. I have no reason to doubt him as I have not seen the inside of the tank myself. This particular person comes highly recommended here where I live, so for now he has my full confidence in his knowledge.
On a side note: I got to assist in rebuilding a 6spd tranny last night............very interesting, I learned quite a bit.
From: Tinker till it blows... then back it off a notch, maybe!!
St. Jude Donor '08
Originally Posted by u4ick
Thanks for the respond, if this thig with GM doesn't pan out that's what I will probably do, my Mech. knows the little "tricks" on this one so if I do have to pay for this one it won't be anything near 1800. With pump and all shouldn't be more than 4-500.......
What pump did you put in, with you running FI?
I put in a Walbo 255 hp, but am also running an Aeromotive 11104 (under boost only) and a return type system with boost referenced fuel pressure regulator....standard stuff for the hardcore FI guys.
And Yes the ffs system has what some call a bucket, whiich is fed from the right side tank and is setup to keep the pump primed right to the last drop.
Not a good idea to do hard accel/braking or cornering with an empty tank, but it appears to be about as good as it gets outside of using an external sump.
Question: Camaros and Trans Ams have the same type of in-tank fuel pump (different location), and they have always had a relay which turns the pump OFF after 10 seconds of free running (no presure/no gas) to keep the fuel pump from burning up (due to no cooling fuel). So....WHY would GM develop such a simple safety system for the F-body cars and NOT use it (or something similar) on their halo car, the Corvette???
Out of all the fbodies I've owned I have never ever heard of this. Burning up fuel pumps is WAYYY more common in Fbody's that it is in vette's (from what I've seen being in the fbody and vette community for about 5 years now...LT1 fbodies are especially bad about burning up fuel pumps b/c they don't have a warning light unlike LS1 t/a's that at least will throw the Check Gauges lights when the gas is low.
If this is true I also don't understand why the fbody would have this feature and not the vette!
If you fuel pump fails, shouldn't the DIC throw some type of error message eventually? What would happen if it failed and you just kept on driving for several thousand miles? Would you just notice it being more sluggish than usual, or would something bad happen eventually?
If you fuel pump fails, shouldn't the DIC throw some type of error message eventually? What would happen if it failed and you just kept on driving for several thousand miles? Would you just notice it being more sluggish than usual, or would something bad happen eventually?
The only code I got was failing O2 sensors for low voltage. I was surprised as well that I had no lean codes go off. My car runs fine under 1/2 throttle but past that it falls on it's face.........in 1st or 2nd you would think that car will stall.
If you fuel pump fails, shouldn't the DIC throw some type of error message eventually? What would happen if it failed and you just kept on driving for several thousand miles? Would you just notice it being more sluggish than usual, or would something bad happen eventually?
If your fuel pump fails...the motor dies...you will not be driving another several thousand miles....you might coast 1-1.5 miles...depending on how fast you are going...haha...
Went to South Dakota last year for a vette rally. One of the 03-z06's in our group had his fuel pump guit....the car died right there. The dealer that we took it to, had 3 other 03's there with the same problem. If I remember right, the dealer said GM changed the 03's fuel pumps/setup from the previous years. The dealer had trouble locating a replacement since he had used his stock on the others. Anyway, GM furnished him a car to drive back to Texas and had his car shipped back to Texas at no charge.
Went to South Dakota last year for a vette rally. One of the 03-z06's in our group had his fuel pump guit....the car died right there. The dealer that we took it to, had 3 other 03's there with the same problem. If I remember right, the dealer said GM changed the 03's fuel pumps/setup from the previous years. The dealer had trouble locating a replacement since he had used his stock on the others. Anyway, GM furnished him a car to drive back to Texas and had his car shipped back to Texas at no charge.
WOW.....was he under any warranty or did they just do it for him?
Mine still runs, but it will drop pressure when past 1/2 throttle or so.
As it is my daily driver I'm praying it doesn't just stop..
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