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Silverghost500 Samba Member
Joined: August 01, 2018 Posts: 1069 Location: Atlanta, GA
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Posted: Sun Jan 20, 2019 8:17 pm Post subject: Singing Those Fuel Pump Power Blues...SOLVED |
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Well, I'm back to diagnosing fuel pump problems again. Got my replacement Bosch unit this weekend. The pump the previous owner installed was really small in diameter compared to the Bosch unit.
I got the pump installed, fuel lines, wiring, etc. all back where they need to be. Connect the battery, turn the ignition switch on, no sound from the pump, engine will not run. Check my electrical connections again just to make certain. Positive wire to positive connection on pump, ground wire at frame to negative post.
To make sure the pump wasn't dead I ran a jumper wire from the positive post on the pump to the positive post on the battery. The pump ran fine. Ran a test light on the positive power wire to the pump, no light. I don't have my multimeter to check voltages.
Tried the relays in the engine bay. I can hear them click, but no noise from the pump.
It's getting late, so I'm going to have to stop the project for the evening, and pick it back up again tomorrow. Which direction to check next? Could it be that the power wire to the pump is bad? Does it go directly to the relays, or does the power wire make a couple of stops along the way to the relay? _________________ 1986 Volkswagen Vanagon Westfalia "Von Westy"
Honda K24A converversion in-progress
3-Speed Automatic
Von Westy YouTube Channel
https://www.youtube.com/channel/UCbhyZYxJEQrUuLnMbLleeIA |
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T3 Pilot Samba Member
Joined: January 10, 2011 Posts: 1507 Location: Deep South of the Great White North
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Posted: Sun Jan 20, 2019 8:25 pm Post subject: Re: Singing Those Fuel Pump Power Blues |
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This thread, my post the 4th one down. Re: T2 power/ground connect hard to find, probably crusty. Open inspect and clean to rule it out.
https://www.thesamba.com/vw/forum/viewtopic.php?p=7916746 _________________ 1988 Vanagon
The most important part in every vehicle is the nut behind the wheel...... |
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Silverghost500 Samba Member
Joined: August 01, 2018 Posts: 1069 Location: Atlanta, GA
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Posted: Sun Jan 20, 2019 9:15 pm Post subject: Re: Singing Those Fuel Pump Power Blues |
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I figured it out. Came down to a bad connector on the power line at the pump. I cut the old one off, put a new one on and the pump powered up as it should. _________________ 1986 Volkswagen Vanagon Westfalia "Von Westy"
Honda K24A converversion in-progress
3-Speed Automatic
Von Westy YouTube Channel
https://www.youtube.com/channel/UCbhyZYxJEQrUuLnMbLleeIA |
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ndorian Samba Member
Joined: June 23, 2018 Posts: 760 Location: Virginia
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Posted: Sun Jan 20, 2019 9:54 pm Post subject: Re: Singing Those Fuel Pump Power Blues |
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Nice. |
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Silverghost500 Samba Member
Joined: August 01, 2018 Posts: 1069 Location: Atlanta, GA
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Posted: Wed Jan 23, 2019 6:28 am Post subject: Re: Singing Those Fuel Pump Power Blues...SOLVED |
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BTW...here's a photo of the fuel pumps side by side. The left is the new Bosch unit that I bought. The right is the unit the previous owner had installed the day I purchased the vehicle.
I took Von Westy out for a ride last night. I did have to let her warm up a bit more, but this is the first I've had her with colder temps. Once warmed up she seemed to behave on the 10 mile test trip. _________________ 1986 Volkswagen Vanagon Westfalia "Von Westy"
Honda K24A converversion in-progress
3-Speed Automatic
Von Westy YouTube Channel
https://www.youtube.com/channel/UCbhyZYxJEQrUuLnMbLleeIA |
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shagginwagon83 Samba Member
Joined: February 07, 2016 Posts: 3786 Location: VA/TN
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Posted: Wed Jan 23, 2019 7:12 am Post subject: Re: Singing Those Fuel Pump Power Blues...SOLVED |
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Curious where you bought the Bosch unit and how much? _________________ Brandon
"Jo Ann" - '83.5 Westfalia EJ22e w/Peloquin
Instagram @joannthevan |
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Silverghost500 Samba Member
Joined: August 01, 2018 Posts: 1069 Location: Atlanta, GA
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Posted: Wed Jan 23, 2019 7:35 am Post subject: Re: Singing Those Fuel Pump Power Blues...SOLVED |
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Bought on Amazon $94.27 with Prime 2-day shipping. Bosch #69414. _________________ 1986 Volkswagen Vanagon Westfalia "Von Westy"
Honda K24A converversion in-progress
3-Speed Automatic
Von Westy YouTube Channel
https://www.youtube.com/channel/UCbhyZYxJEQrUuLnMbLleeIA |
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Silverghost500 Samba Member
Joined: August 01, 2018 Posts: 1069 Location: Atlanta, GA
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Posted: Sat Jan 26, 2019 10:46 am Post subject: Re: Singing Those Fuel Pump Power Blues...SOLVED |
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I just got back from an hour long test run after fitting the new Bosch fuel pump. I never heard it the entire trip! The other one that was on was always audible.
She ran pretty well. She stayed consistent with speed. I got her out on the Interstate for a few miles and she was able to maintain 70mph with no apparent issues. _________________ 1986 Volkswagen Vanagon Westfalia "Von Westy"
Honda K24A converversion in-progress
3-Speed Automatic
Von Westy YouTube Channel
https://www.youtube.com/channel/UCbhyZYxJEQrUuLnMbLleeIA |
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