1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Ground your fuel pump? guess so

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Old 10-24-07, 07:44 PM
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Ground your fuel pump? guess so

Around 3 this afternoon i hop in the 7 and "attempt" to take it for a spin. I get halfway down the street and it dies. I figure i might have flooded it after trying to start it afterwards...but there wasnt any gas in the carb. I realize that i dont hear the normal clicking of the fuel pump, and check the fuses. Theyre all good. I pull the pump and check it while in my hand. Its really weak, and is barely "clicking" *(only getting 1 volt according to the meter). Although it has an internal ground, just for kicks i press it to the door jamb. BAM! it almost vibrates out of my hand ( 10 volts!). This is when it started getting weird. I re hook everything up and the pump is weak again. I figure that if i ground it in my hand, then i should ground it while in place. I rig a ground from the pump to the body, and it works perfectly. I actually notice more power than before. The car runs great now...but it was weird. Has anyone else had this problem?
Old 10-24-07, 07:53 PM
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Have not had that problem, but i do know that ground issues are strange
Old 10-25-07, 01:47 PM
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Had that problem with a blower motor once...
Old 10-26-07, 11:22 PM
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i just replaced my fuel pump.. my 80 would die all the time for about a week.. it runs great now
Old 10-27-07, 12:44 AM
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Dont just blame it on the ground. There are other parts to the equation.
Old 10-27-07, 08:23 AM
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i didnt blame the ground, it just kept dying so i have a cousin who works for mazda and he got me a new one for $90
Old 10-27-07, 11:32 PM
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my buddy had this happen on his mustang...wasnt gettin a full 12v regrounded it and ran a new 12v line to the pump...he said it felt better at higher rpms.
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