Author Topic: Little Fuel Pump Problem  (Read 5509 times)

May 08, 2005, 01:16:23 pm

WishIHadaRabit

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Little Fuel Pump Problem
« on: May 08, 2005, 01:16:23 pm »
My car seems to miss a little at low rpm, (less with the new nozzles)
like if I'm not getting full detonation in one cylinder.

And also my idle jumps from 1100rpm to 800rpm and vice-versa (slowly goes up and stays there a while, then slowly backs down).
I had this problem before I changed my nozzles.
I did a compression test at the same time and that's good
(430psi across all 4)

I'm pretty sure it's a pump problem.
Has anybody had this problem and fixed it?
I'm wondering if it's an easy fix that I could do myself?

Thanks

Reply #1May 08, 2005, 08:01:18 pm

chrissev

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Re: Little Fuel Pump Problem
« Reply #1 on: May 08, 2005, 08:01:18 pm »
Quote from: "WishIHadaRabit"
My car seems to miss a little at low rpm, (less with the new nozzles)
like if I'm not getting full detonation in one cylinder.

And also my idle jumps from 1100rpm to 800rpm and vice-versa (slowly goes up and stays there a while, then slowly backs down).
I had this problem before I changed my nozzles.
I did a compression test at the same time and that's good
(430psi across all 4)

I'm pretty sure it's a pump problem.
Has anybody had this problem and fixed it?
I'm wondering if it's an easy fix that I could do myself?

Thanks


check the pump timing with  a dial gauge.
88 Jetta TD....sold for $1000, bought an 06 Cobalt, clearing out the diesel jetta stuff now

Reply #2May 08, 2005, 09:50:06 pm

WishIHadaRabit

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Little Fuel Pump Problem
« Reply #2 on: May 08, 2005, 09:50:06 pm »
I had the pump timed at a friend VW shop, just to be sure that was not the problem.

thanks

Reply #3May 09, 2005, 12:46:31 pm

chrissev

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Little Fuel Pump Problem
« Reply #3 on: May 09, 2005, 12:46:31 pm »
Quote from: "WishIHadaRabit"
I had the pump timed at a friend VW shop, just to be sure that was not the problem.

thanks


air in your feed line?
88 Jetta TD....sold for $1000, bought an 06 Cobalt, clearing out the diesel jetta stuff now

Reply #4May 09, 2005, 12:54:32 pm

WishIHadaRabit

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Little Fuel Pump Problem
« Reply #4 on: May 09, 2005, 12:54:32 pm »
no bubbles at all