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solex |
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#1
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Senior Member ![]() ![]() ![]() Group: Members Posts: 789 Joined: 12-January 05 From: Long Island, NY Member No.: 3,439 Region Association: North East States ![]() |
Hi All,
Need a little help to diagnose a fuel pump problem in a 75, I do not hear the pump when I turn the key to the run position. The car was running, I had a few occasions where it would not start, let it sit for a few days and it was start right up. The grounds: under the relay board, battery and transmission have all been cleaned. All fuses are good. The relay is working as I can hear it click into position. When the key is in the run position relay terminals 30 and 85 shows 12 volts. Terminal 86 show 0.03 volts and terminal 87 show zero volts. There is no voltage at either of the fuel pump terminals. The readings at the relay is counter to to what Haynes states (86 should read 12 and 85 should be ground). I not sure where to check next, really do not want to pull the tank. Any assistance would be appreciated. Thanks, Dan |
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solex |
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#2
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Senior Member ![]() ![]() ![]() Group: Members Posts: 789 Joined: 12-January 05 From: Long Island, NY Member No.: 3,439 Region Association: North East States ![]() |
BTW, what is the best way to clean the tar off of the relay board?
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914_teener |
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#3
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914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 5,205 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California ![]() |
BTW, what is the best way to clean the tar off of the relay board? Oh man your terminals are in rough shape. Your time might be better spent trying to find a better one.... or one that is already rebuilt. It' is a time consuming chore, and then to resolder those rivets to the traces (IMG:style_emoticons/default/smash.gif) ...they need to be REALLY clean. Short answer is lots of patience and the pick tool set from harbor frieght is what I've used. |
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