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Old 10-01-2017, 01:16 PM   #1
yarchlrl
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Default fuel pump issues AGAIN!

Has anyone gone to a single fuel pump and avoided this BS in tank issue yet? I am sure someone has. If so, can you post what pump and supplies you used?

Thank you ...
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Old 10-01-2017, 01:23 PM   #2
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I have not done this modification, but fellow tbrickers have upgraded to the DW200/300 pumps.
http://forums.turbobricks.com/showthread.php?t=276967
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Old 10-01-2017, 01:31 PM   #3
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I have not done this modification, but fellow tbrickers have upgraded to the DW200/300 pumps.
http://forums.turbobricks.com/showthread.php?t=276967
Thank you. I have put in 3 Airtex pumps in 1200 miles. This is ridiculous...
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Old 10-01-2017, 01:36 PM   #4
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I am wondering if anyone has tried AEM yet and if so, how well does it work.
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Old 10-01-2017, 01:53 PM   #5
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Thank you. I have put in 3 Airtex pumps in 1200 miles. This is ridiculous...
I'd be searching for the cause of the failing pumps. My guess is that it's not the pumps that are at fault.
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Old 10-01-2017, 01:55 PM   #6
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Old 10-01-2017, 02:10 PM   #7
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I's be searching for the cause of the failing pumps. My guess is that it's not the pumps that are at fault.
First two were warranty due to impeller cracks. They were great about replacing them but, all this install remove stuff is for the birds. I dont know why THIS one failed yet as it is still in the tank until the new DW300 arrives. Just ordered it.
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Old 10-01-2017, 02:35 PM   #8
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Which airtex pump have you been installing? I installed the one that Art recommends in this writeup. It's an airtex E8778, and mine has been going for over 2 years.
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Old 10-01-2017, 05:40 PM   #9
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Which airtex pump have you been installing? I installed the one that Art recommends in this writeup. It's an airtex E8778, and mine has been going for over 2 years.
2 8381, 1 8778 current.
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Old 10-01-2017, 06:10 PM   #10
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Quote:
Originally Posted by yarchlrl View Post
First two were warranty due to impeller cracks. They were great about replacing them but, all this install remove stuff is for the birds. I dont know why THIS one failed yet as it is still in the tank until the new DW300 arrives. Just ordered it.
Well you know the reason for the 1st two,cracked impellers.That's not on you bud.Soo you are really talking about the 8878. I installed one in my 740 wagon a while back and did not solder it good enough.That one was on me! Don't want to imagine what could of happened.
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Old 10-01-2017, 07:20 PM   #11
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I bet it's a wiring issue. My original in tank pump never failed, but the electrical feed through on the top of the sending unit did. There was continuity and it put 12v to the pump, but it could not pass enough current to power the pump.

So I replaced the the in tank pump with the airtex, and replaced the sending unit.
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Old 10-02-2017, 01:48 PM   #12
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I bet it's a wiring issue. My original in tank pump never failed, but the electrical feed through on the top of the sending unit did. There was continuity and it put 12v to the pump, but it could not pass enough current to power the pump.

So I replaced the the in tank pump with the airtex, and replaced the sending unit.
sending unit is 9 months old, OEM, checks out fine. wires are fine. Put a new ground bolt in for the pump as well. Just a dead pump.
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Old 10-02-2017, 02:10 PM   #13
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sending unit is 9 months old, OEM, checks out fine. wires are fine. Put a new ground bolt in for the pump as well. Just a dead pump.
Have you since pulled the 8778 and bench tested it?
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Old 10-02-2017, 04:20 PM   #14
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Have you since pulled the 8778 and bench tested it?
not yet. not till the DW300 arives.
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Old 10-03-2017, 11:40 PM   #15
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I am wondering if anyone has tried AEM yet and if so, how well does it work.
Running AEM green ones on E85 on my 740 & 940 not a problem
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Old 10-04-2017, 12:19 AM   #16
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I installed one pump in the tank. It wasnt bad and works great. Reason I did it was for simplicity and both my pumps were shot. I ran new wiring and did fuel pump relay mod. I can can give you part number if you need it.
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Old 10-04-2017, 12:22 AM   #17
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I have a DW300 on my GLH and DW200 on my 850.

3 year no fault warranty, SUPER quiet, flow plenty, and I don't have to worry about fakes pumps since I can buy directly from factory.

Works for me.
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Old 10-04-2017, 11:32 PM   #18
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Originally Posted by 90volvo View Post
I installed one pump in the tank. It wasnt bad and works great. Reason I did it was for simplicity and both my pumps were shot. I ran new wiring and did fuel pump relay mod. I can can give you part number if you need it.
please do
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Old 10-05-2017, 11:25 AM   #19
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please do
New pump come in yet? Im curious to see if the 8778 failed.
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Old 10-09-2017, 09:41 AM   #20
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New pump come in yet? Im curious to see if the 8778 failed.
yes it did. I am going to swap it today.
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Old 10-10-2017, 11:18 AM   #21
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And the verdict is....?
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Old 10-15-2017, 02:11 PM   #22
yarchlrl
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And the verdict is....?
well, old pump is definitely shot. impeller is frozen. new DW300 is in and works great for 30 or so seconds then the car dies. put a 30A circuit breaker on the main pump, new fuel pump relay and still, CB and FP relay are getting super hot then, shuts off. next step is to pull the main pump and check all the wires to it, again... so frustrating!!! getting major over amp somewhere. Thanks for the help fellas. Truly appreciate it.
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