Question about 2000 Jeep Cherokee
Jeep would not start original replaced crank sensor starts now then stalls after approx 3 sec swapped ecu with known good one still happens
These computers have anti theft it needs to be flashed to ur vin by a proprietary computer costs around 100 if u don't it will just start run for 3 seconds then shut right down
Posted on Apr 04, 2013
I have a 2000 cherokee that only ran for about 3 secounds and none of the guages would work. I did all of the checks I found on this web site and still nothing. Found out my battery had a dead cell, put in a new battery and so far so good. Might give that a try
Posted on Dec 10, 2010
I am going to assume that it will not run even if you push on the accelerator pedal?
Can you install or attach an old timing light to the spark plug wires, turn it one and try to start it. The light should flash with the engine running, but if it shuts off at time of engine die, and the engine is still spinning, you are losing spark, My suggestion is the cranks shaft sensor on bell housing.
Second, install a pressure gage on the test port on the fuel rail and watch it as you start the engine, fuel pressure should not drop as the engine dies, if it does, the pump is not working correctly. There are two modes of power to that pump, one to start and timed, for only a few seconds to prime the system, and one to run continuously. Find the wires going to the pump at the tank. Connect test light to those wires and watch what happens during crank and at stall, You should not have the pump shut off and the engine dies.
If you have spark, and fuel pump working, when did you last change the filter,,but I put that LAST.
It has to be one or the other of these.
Posted on Aug 04, 2008
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