4.3 is eating fuel pumps
March 27th, 2016, 8:33 PM
#1
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4.3 is eating fuel pumps
Hi all. I'm having an issue with my 2002 express van. I just replaced the original pump last month. 12volts to the pigtail, but no fuel.
Ordered an airtex pump, installed, ran fine for about 4 days, then no start. Again 12volts at the plug.
Ordered a Delphi pump, replaced, and again ran fine for about a week. I'm having the same issue again.
So, I don't think the pumps are an issue. What could be killing them? I replaced the fuel filter and cleaned the tank.
Each pump had about an hour worth of drive time on it.
Thanks for your help.
Ordered an airtex pump, installed, ran fine for about 4 days, then no start. Again 12volts at the plug.
Ordered a Delphi pump, replaced, and again ran fine for about a week. I'm having the same issue again.
So, I don't think the pumps are an issue. What could be killing them? I replaced the fuel filter and cleaned the tank.
Each pump had about an hour worth of drive time on it.
Thanks for your help.
March 27th, 2016, 10:28 PM
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Yep, replaced the whole assembly both times.
Same tank of gas. I would say it's around 1/4 full. Again, it may only have 1 hour of run time on this van over the course of 2 weeks and two pumps. It is a future service van that is sitting in the back yard without a tag. I just move it around the yard to work on or move parts.
Thanks for the comments.
Same tank of gas. I would say it's around 1/4 full. Again, it may only have 1 hour of run time on this van over the course of 2 weeks and two pumps. It is a future service van that is sitting in the back yard without a tag. I just move it around the yard to work on or move parts.
Thanks for the comments.
March 27th, 2016, 11:39 PM
#5
When mine went on my 2002 I had a bosch one put in.....so far so good and that was years ago.....
When the pump fails, can you get it to work by banging on the gas tank to jar it?
Could a bad relay not allow enough current and essentially starve the pump motor? That could create internal heat.
When the pump fails, can you get it to work by banging on the gas tank to jar it?
Could a bad relay not allow enough current and essentially starve the pump motor? That could create internal heat.
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April 2nd, 2016, 1:18 PM
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I just pulled the pump out and checked the relay. Found that the switch side of the relay is not completely open. Reading around 280m ohms across the switch. On my way to swap the pump and get a new relay. Wish me luck!
Thanks for the help
Thanks for the help