Question about 1994 Jeep Grand Cherokee
It starts and then dies in couple of second.This indicates towards the faulty fuel pump.Get the fuel pressure checked.If the pressure is checked low, then yes its confirmed that fuel pump is faulty and fuel filter is clogged.In most of cases, both the fuel pump and filter needs to be replaced.The fuel pressure, it can be checked at any local car garage.
Also check and confirm that there is fuel in the jeep. If its very low fuel then
in some cases this causes the problem. Also check and confirm that fuel pump is
functioning properly and the fuel filter is not clogged. One of the easiest
ways to check for a fuel pump related problem is to spray a little starting
fluid into the air intake throttle body while trying to start the car. If the jeep starts
momentarily, then there's a good chance the fuel pump is not working.But if the engine shows same problem with starter fluid sprayed on intake throttle body.Then the problem relates to the fuel pump relay.The fuel pump relay is located in the Engine compartment fuse box. The fuel pump relay gets power from battery. And this relay is controlled by ECM/ ECU( electronic control module/unit).Its also called computer of the jeep.The relay ground is connected to ECM.-----
So first you can try spraying the starter fluid and check.If the engine starts and runs properly, then yes its confirmed that fuel pump is the cause of problem.But if same problem noticed with starter fluid, then get the fuel pump relay checked.Its a 12 volt part.By pass the relay and check.Directly get the fuel pump connections connected to 12 volt battery and check.This will confirm if relay is faulty or the ECM is faulty.
This troubleshooting will point towards the exact fault.So as per that you can get the faulty part replaced.This should help.Keep updated.Thanks.Helpmech.
Posted on Apr 06, 2011
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Posted on Jan 02, 2017
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