mat in tn Posted January 6, 2022 Share Posted January 6, 2022 When out the truck today to used all the new info. The two of the wires into the fuel relay are are discolored to the point I had to guess. (Red and yellow are good colors) The eec relay tests good. My only question is the fuel pump doesn't shut off after primed. I have a fuel pressure gauge and it's reading 40 psi. I know before the new motor went in it would shut off in a few seconds. Will this be an issue? if the fuel pump and regulator are working correctly it is possible for it to hold 40 psi for an extended period of time after being timed out or the ignition being turned off. it only "prime cycles" for a very short time to make up for any loss it may have had from sitting or beginning to wear. as always there is a range of tolerance. you don't want the fuel pump cut off relay stuck in the on position. its effectively jumped! that means it will pump out continuously if there is a leak. it's a safety device, otherwise it would just be wired straight. Link to comment Share on other sites More sharing options...
mat in tn Posted January 6, 2022 Share Posted January 6, 2022 if the fuel pump and regulator are working correctly it is possible for it to hold 40 psi for an extended period of time after being timed out or the ignition being turned off. it only "prime cycles" for a very short time to make up for any loss it may have had from sitting or beginning to wear. as always there is a range of tolerance. you don't want the fuel pump cut off relay stuck in the on position. its effectively jumped! that means it will pump out continuously if there is a leak. it's a safety device, otherwise it would just be wired straight. another point. are you hearing the pump running or are you assuming it is because of the pressure? Link to comment Share on other sites More sharing options...
Waine5550 Posted January 6, 2022 Author Share Posted January 6, 2022 another point. are you hearing the pump running or are you assuming it is because of the pressure? Hearing it. Where are you in tennessee I'm a little east of Nashville. Link to comment Share on other sites More sharing options...
mat in tn Posted January 6, 2022 Share Posted January 6, 2022 Hearing it. Where are you in tennessee I'm a little east of Nashville. old hickory. aka a little east of nashville Link to comment Share on other sites More sharing options...
Waine5550 Posted January 6, 2022 Author Share Posted January 6, 2022 old hickory. aka a little east of nashville - deleted - Link to comment Share on other sites More sharing options...
mat in tn Posted January 6, 2022 Share Posted January 6, 2022 - deleted - that's hilarious! i spent yesterday in Lebanon working on a truck. got home and picked up on this thread. Link to comment Share on other sites More sharing options...
Waine5550 Posted January 19, 2022 Author Share Posted January 19, 2022 that's hilarious! i spent yesterday in Lebanon working on a truck. got home and picked up on this thread. - deleted - Link to comment Share on other sites More sharing options...
mat in tn Posted January 19, 2022 Share Posted January 19, 2022 - deleted - send me an email with your contact info and lets see if and when we can get together and look at it at least Link to comment Share on other sites More sharing options...
Waine5550 Posted January 19, 2022 Author Share Posted January 19, 2022 send me an email with your contact info and lets see if and when we can get together and look at it at least - deleted - Link to comment Share on other sites More sharing options...
Gary Lewis Posted January 19, 2022 Share Posted January 19, 2022 - deleted - I think it probably sent the message. It just doesn't look like it did at the moment. Try again and tick the box to send a copy to you. Then you'll know. Link to comment Share on other sites More sharing options...
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