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M42 Reference / Capacities
« on: January 02, 2009, 10:38:14 AM »
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If it were me I'd remove the rear seat and check for 12 volts at the pump with the key in the on position. If you have 12 volts there sometimes you can tap the pump with a non metallic (wood) object to see if it starts .If not then the pump may be the culprit.If you don't have 12 volts then jump the relay like AK said and check for voltage at the pump.
I have a feeling you need a new pump . How many miles on the vehicle?
good luck
I replaced the pump and 6 months later started having the same problem. I hooked jumper cables to the battery and put screwdrivers in the other ends. When I touched the prongs on the pump it ran. Turned ouy my plug on the end of the wires had sloppy sockets and could lose contact. I bent the prongs on the top of the pump so they created friction on the socket and it's worked fine ever since, I discovered it by bumping the plug accidently and it started. I wiggled it and it went on and off. Stuff gets tired after 15 years. Glad I found that before I ventured into my next guess which was the fuse block!Same thing happened to me. I figured it out after buying 2 fuel pumps