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Posted on Mar 06, 2011
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I have a 1997 isuzu rodeo 3.2L I've checked the continuity on the fuel pump wires they seem fine. No/low voltage on the wires to the pump, (.08 volts when DMM is set to 20). Checked pump after removing the tank and the pump, it purred. Checked the fuel pump relay it seems to have power on 1 circuit, (not sure if 2 circuits should have power(?)). Then checked with a known good relay. Then tried jumping/bypassing the relay. The schematic show the power should go from the fuse to the relay. The fuse is fine though. I don't believe the ECM is malfunctioning either. I'm not sure, but I don't believe it is. And with the fuel tank and pump removed I still don't get a check engine light, and it was working. Vehicle ran fine until I parked it a few days ago. Turns over without a problem but doesn't get any gas. I checked the filter and the lines before I pulled the tank, they were good. HELP!!!, How should I proceed from here. Thanks

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  • Posted on Mar 14, 2011
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Joined: Feb 26, 2011
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You may want to try to see if the car will start while you spray starting fluid down the throttle body. If it doesn't, the problem may not be the fuel pump at all. There is an idle air control valve bolted to the front of the throttle body that can keep the car from starting as well.

If the car starts with the starting fluid, you might want to change your fuel filter. It's mounted under the car near the passenger rear door.

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