 Relay board question....., I'm missing something? |
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| Tjmrfe |
 Sep 19 2016, 09:25 AM
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#1
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NON IMPEDING RATIONE COGITATIONIS  Group: Members Posts: 132 Joined: 10-April 15 From: Cornwall on Hudson, New York Member No.: 18,612 Region Association: North East States  |
Hey Guys,
1975 1.8 F.I. (Recently purchased) I'll make it short...fuel pump isn't coming on, no voltage @ pump...so....I trace it as per (Bowlsby and my trusty F. I. Troubleshooting Manuel) and it says....check the dual relay located @ the driverside engine compartment. And there to my amazement is this ratty looking "relay board" filled with mouse droppings etc. and I think, cool!! (IMG:style_emoticons/default/biggrin.gif) This I can fix.. as per all the info I found, there should be a small round relay plugged into position #3 for the fuel pump...and......there isn't? (IMG:style_emoticons/default/WTF.gif) Only one in position #4? So....I pull it out, cleaned up the relay board, (and I replaced the fuse, which was good) and ordered a few round relays... Now, can someone tell me, is the info I found, on multiple sites wrong? Should my FP run off relay #3? And since I bought a few spares, can I keep them in the other empty relay sockets there? And does the voltage regulator relay have anything to do with this? Good thing I kept it short huh? (IMG:style_emoticons/default/dry.gif) Thanks...Terry. |
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| timothy_nd28 |
Sep 19 2016, 02:42 PM
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Advanced Member Group: Members Posts: 2,299 Joined: 25-September 07 From: IN Member No.: 8,154 Region Association: Upper MidWest 
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Have someone turn the key to start while you are measuring voltage at pin 88d at the dual relay. If you have voltage here, then you need to check the ground at the fuel pump. If you have a solid 12volts at the wires of the fuel pump, then your pump is either seized or electrically open and it's time for a new pump.
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| Tjmrfe |
Sep 20 2016, 09:50 AM
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#3
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NON IMPEDING RATIONE COGITATIONIS Group: Members Posts: 132 Joined: 10-April 15 From: Cornwall on Hudson, New York Member No.: 18,612 Region Association: North East States |
QUOTE(timothy_nd28 @ Sep 19 2016, 12:42 PM)  Have someone turn the key to start while you are measuring voltage at pin 88d at the dual relay. If you have voltage here, then you need to check the ground at the fuel pump. If you have a solid 12volts at the wires of the fuel pump, then your pump is either seized or electrically open and it's time for a new pump. Thanks so much... I'm getting no voltage @ pump with key on...so, I started to back trace, and was thrown off by my not understanding that the relay board was for D jets, (IMG:style_emoticons/default/headbang.gif) I'm gonna try again with the new info. You provided. Appreciate your time..i needed exactly what you gave....the proper info. Thank you for providing that... I'll check back with the solution! |
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Posts in this topic
Tjmrfe Relay board question..... Sep 19 2016, 09:25 AM
timothy_nd28 Relays and fuses on relay board do nothing for the... Sep 19 2016, 11:32 AM
Tjmrfe
Relays and fuses on relay board do nothing for th... Sep 19 2016, 02:18 PM ndfrigi Terry, you're in good hand with Tim! He di... Sep 19 2016, 03:12 PM Steve_R Hi Terry,
I attached a fuel pump trouble shooting... Sep 20 2016, 06:55 AM timothy_nd28 :agree: this is a good flow chart. But this only... Sep 20 2016, 09:23 AM |
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