Hello guyz , today i was driving my jimmy home and my speed was 110 km\h suddenly the car was shut off, this was the fourth time maybe , this happened after i changed the old fuel pump and im sure that i brought the right pump so i dunno whats the problem either its comp problem or the pump it self and by the way the engine was not too hot it was 90c maybe around that so, help plZ ...
Fuel Pump Problem
- Thread starter xsaher
- Start date
Molson02536
New member
Start with the simple and replace the fuel filter, the other issues you may have is that if you have not replace the wire harness from the new sending unit to the frame where it connects. It's common for that wire harness to fail causing poor electrical connections and also inspect the ground wire for the fuel pump, the ground wire is known to corrode giving the sending unit poor ground causing it to have low fuel pressure.
Check your fuel pressure at the shredder valve, you should have 62-65 psi when starting the engine and should drop by 5 psi when the engine is running.
Start with these simple things first and keep me posted. Good luck.
thanks my friend but the filter was changed and the fuel pressure was checked also , and i forgot to type something that when it shuts off i just start it again and it starts normally and very well.although ill check its wiring and the pump cutout .
Molson02536
New member
Once you have gone through the fuel pump harness, we can move on to the next step. Inspect the ICM (ignition control module), when the ICM starts to fail. It will case the engine to shut down and restart again, you can remove the ICM and have it inspected at Auto Zone free of charge. Before you do that, inspect the wire leads and connections to the ICM for any signs of damage.
Keep me posted.