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cchris
Samba Member
Joined: March 16, 2015
Posts: 91
Location: United States
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 Posted: Mon Jul 24, 2017 3:35 pm Post subject: Bay window fuel pump |
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| I'm trying to diagnose my fuel pump not getting power when ignition is turned on, on my 76 Baywindow I'm having trouble following the wiring diagram to trace the power wire And i can't find any forums on that subject |
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Xevin 
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Joined: January 08, 2014
Posts: 7635
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| Posted: Mon Jul 24, 2017 3:43 pm Post subject: Re: Baywindow fuel pump |
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How about some info on fuel pump? Type?
For starters have you cleaned up the connections on the coil for the pump and make sure they are nice and snug. For that matter clean up all connections with the pump.
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cchris
Samba Member
Joined: March 16, 2015
Posts: 91
Location: United States
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| Posted: Mon Jul 24, 2017 3:58 pm Post subject: Re: Baywindow fuel pump |
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It's a stock inline canister fuel pump not sure the model I have cleaned the connections I also run a jumper to it and it worked perfect Shot more gas out then i planed When i turn the key to the on position there's no power to the pos wire from my understanding of the wire diagram the pump is powered by the ECU If so how do i test the ECU
Last edited by cchris on Mon Jul 24, 2017 4:43 pm; edited 1 time in total |
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Tcash
Samba Member
Joined: July 20, 2011
Posts: 12844
Location: San Jose, California, USA
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| Posted: Mon Jul 24, 2017 7:28 pm Post subject: Re: Bay window fuel pump |
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| cchris wrote: |
| I'm trying to diagnose my fuel pump not getting power when ignition is turned on, on my 76 Baywindow I'm having trouble following the wiring diagram to trace the power wire And i can't find any forums on that subject |
open this up.
Double Relay Explained. . . In Color!
Go down to Ignition on engine off.
The fuel pump is commanded to turn on when the valve in the air flow meter opens. So key on pull the air filter out and use a chop stick and open the flap in the air flow meter. You should hear the pump kick on.
Good luck
Tcash |
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busdaddy
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Joined: February 12, 2004
Posts: 51153
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Mon Jul 24, 2017 7:52 pm Post subject: Re: Bay window fuel pump |
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A test light piggybacked onto the leads on the pump helps as well, it may be stuck from sitting.
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cchris
Samba Member
Joined: March 16, 2015
Posts: 91
Location: United States
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| Posted: Mon Jul 24, 2017 9:08 pm Post subject: Re: Bay window fuel pump |
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| Thanks for the suggestions i will try them tomorrow and let you know if it worked |
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cchris
Samba Member
Joined: March 16, 2015
Posts: 91
Location: United States
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| Posted: Tue Jul 25, 2017 5:41 pm Post subject: Re: Bay window fuel pump |
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| T cash did the chopstick method and heard the relay click and the pump turn on Thanks this is all new to me I used to my 56 bug with 5 wires I got it to fire up for about 5-10 seconds sounded like it was running on 2 cylinders and couldn't get it to start again I'm getting spark and thats about as far as i got I'll pull a fuel line tomorrow and go from there Thanks again |
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