another fuel pump!!!! WTH!!?
Thread Starter
Safety Car
Joined: Oct 2008
Posts: 3,966
Likes: 17
From: Ft. Collins, CO
another fuel pump!!!! WTH!!?
My 4th or 5th fuel pump just went out on me today. This one have even less miles than the previous one. Probably around 400miles!!!!
There must be something causing those fuel pumps to go out but can't figure it out. None of the wires or anything else got changed. All stock. All we did this time is -8an feed line, and reused the stock feed line as a return line.
Is it just luck? E85? Or is it possible that something else is causing those pumps to go out on me!!!!?
I am getting frustrated. I didn't have a lot of fun in this car ever since I got it rebuilt. It spends most of its time at the shop.
A wise man told me not too long ago to get some 5gal fuel and set this thing on fire but I didn't listen to him LOL
Any ideas? Since it will need a new pump might as well get the walbro 450 pump
this is on my C6 Z06. 441ci N/A with nitrous. I have a dedicated fuel cell for the nitrous
There must be something causing those fuel pumps to go out but can't figure it out. None of the wires or anything else got changed. All stock. All we did this time is -8an feed line, and reused the stock feed line as a return line.
Is it just luck? E85? Or is it possible that something else is causing those pumps to go out on me!!!!?
I am getting frustrated. I didn't have a lot of fun in this car ever since I got it rebuilt. It spends most of its time at the shop.
A wise man told me not too long ago to get some 5gal fuel and set this thing on fire but I didn't listen to him LOL
Any ideas? Since it will need a new pump might as well get the walbro 450 pump
this is on my C6 Z06. 441ci N/A with nitrous. I have a dedicated fuel cell for the nitrous
Last edited by walhan_qtr; May 22, 2012 at 10:46 PM.
Instructor
Joined: Jan 2011
Posts: 214
Likes: 0
From: Des Moines, Iowa
I have over 10k miles on my z06 pump and over a thousand since the e85 conversion, no problems yet. I also know others running the 400 pump for several thousand miles on e85 with no issues.
I think there must be something else causing all your pump failures. Sucks to hear another went out on you so soon.
I think there must be something else causing all your pump failures. Sucks to hear another went out on you so soon.
Thread Starter
Safety Car
Joined: Oct 2008
Posts: 3,966
Likes: 17
From: Ft. Collins, CO
See the problem is ever since I switched to E85 I stared going through pumps. First 2 pumps the car only had heads and cam setup. And it was all stock the fuel system wasn't modified in anyway. The third pump was with my 441ci. Fuel system was all stock too. Now this pump all we did was a return system. All the wiring is stock. So what would it be?
Thread Starter
Safety Car
Joined: Oct 2008
Posts: 3,966
Likes: 17
From: Ft. Collins, CO
EDIT: its a walbro 400LPH. the other ones are stock C6 Z06 pumps.
Last edited by walhan_qtr; May 22, 2012 at 09:31 PM.
Thread Starter
Safety Car
Joined: Oct 2008
Posts: 3,966
Likes: 17
From: Ft. Collins, CO
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Thread Starter
Safety Car
Joined: Oct 2008
Posts: 3,966
Likes: 17
From: Ft. Collins, CO
the wiring was never changed. all stock. the tanks are coming down tomorrow and we will check the wiring. again it was never changed.............
first pump had 40k miles with not a single problem. as soon as I switched to E85 it failed (after a month or two) the same with the other ones. after couple months they start failing.........
first pump had 40k miles with not a single problem. as soon as I switched to E85 it failed (after a month or two) the same with the other ones. after couple months they start failing.........
Drifting
Joined: Jul 2010
Posts: 1,888
Likes: 82
From: 405
Besides the fiter on the bottom of the pump do you have a stainless micron filter on any of the feed lines anywhere?? Also where are you getting your gas from, have you tested it and also when you had your tanks out did you clean them??
Thread Starter
Safety Car
Joined: Oct 2008
Posts: 3,966
Likes: 17
From: Ft. Collins, CO
the tanks were cleaned the 2nd time it was out. not sure about the last two though as I didnt think they will need to clean them again with only couple months on each pump. I dont think we used any filters on any of the feed lines, I will double check but I am pretty sure we didnt. I have tested the gas and it was always true E85 (even in the winter!!!)
Burning Brakes
Joined: Nov 2011
Posts: 795
Likes: 1
From: tacoma wa
do the racetronics hot wire set up, i think it is less than a pump. it takes power right off the back of the alternator, the relay mounts near the pump. i run the twin set up, second pump comes on at 4psi. you can switch a terminator plug to swap pumps, give your primary a break. lonnie hooked me up!
Thread Starter
Safety Car
Joined: Oct 2008
Posts: 3,966
Likes: 17
From: Ft. Collins, CO
do the racetronics hot wire set up, i think it is less than a pump. it takes power right off the back of the alternator, the relay mounts near the pump. i run the twin set up, second pump comes on at 4psi. you can switch a terminator plug to swap pumps, give your primary a break. lonnie hooked me up!
Thread Starter
Safety Car
Joined: Oct 2008
Posts: 3,966
Likes: 17
From: Ft. Collins, CO
I just ordered a walbro 450 pump with overnight shipping. it should be here Thursday... hopefully I will be able to make it to the track on friday... I doubt it though.......
Drifting
Joined: Jul 2010
Posts: 1,888
Likes: 82
From: 405
The only thing I can think of is something's up with the wiring, or something is clogging your pump and then burning it up. An inline filter on the feed line in between the hat and the rails isn't a bad idea just added insurance.
Thread Starter
Safety Car
Joined: Oct 2008
Posts: 3,966
Likes: 17
From: Ft. Collins, CO
thanks I will def do that. the guy I talked to about it didnt say anything when I asked him. he did few on those Z06s and I thought we will just do it the same way he did. he didnt mention anything about using any filter on the feed line. but thanks for that.
Melting Slicks
Joined: Mar 2005
Posts: 2,225
Likes: 42
From: Okinawa
I am looking for some e85 pumps for my car too. Just found this.
WARNING: If you plan to run E85 fuel you must be prepared to install proper filtration, and maintain it as frequently as every 10 run-hours. If not, Aeromotive does NOT recommend you the use of E85 with the 340 Stealth Fuel Pump.
I know thats not the pump your running but its something to think about.
Has anybody used these? http://www.lingenfelter.com/mm5/merc...Store_Code=LPE
WARNING: If you plan to run E85 fuel you must be prepared to install proper filtration, and maintain it as frequently as every 10 run-hours. If not, Aeromotive does NOT recommend you the use of E85 with the 340 Stealth Fuel Pump.
I know thats not the pump your running but its something to think about.
Has anybody used these? http://www.lingenfelter.com/mm5/merc...Store_Code=LPE
Thread Starter
Safety Car
Joined: Oct 2008
Posts: 3,966
Likes: 17
From: Ft. Collins, CO
I am looking for some e85 pumps for my car too. Just found this.
WARNING: If you plan to run E85 fuel you must be prepared to install proper filtration, and maintain it as frequently as every 10 run-hours. If not, Aeromotive does NOT recommend you the use of E85 with the 340 Stealth Fuel Pump.
I know thats not the pump your running but its something to think about.
Has anybody used these? http://www.lingenfelter.com/mm5/merc...Store_Code=LPE
WARNING: If you plan to run E85 fuel you must be prepared to install proper filtration, and maintain it as frequently as every 10 run-hours. If not, Aeromotive does NOT recommend you the use of E85 with the 340 Stealth Fuel Pump.
I know thats not the pump your running but its something to think about.
Has anybody used these? http://www.lingenfelter.com/mm5/merc...Store_Code=LPE
Melting Slicks
Joined: Mar 2007
Posts: 2,391
Likes: 23
From: Santa Barbara CA
Out of curiosity, have you bench tested any of these failed pumps after removal? What's the symptom when they fail? Most oem fuel pump failures I see are because the pumps seize (or fail internally) and won't make any noise.
I'm just wondering if you have some intermittent wiring problem that makes you think your pumps keep failing. Bench testing should answer that, though.
Gotta be frustrating...
I'm just wondering if you have some intermittent wiring problem that makes you think your pumps keep failing. Bench testing should answer that, though.
Gotta be frustrating...
