An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 100 times.
Re: Trouble starting 1990 jeep cherokee
IF THE VEHICLES STARTER TURNS, BUT DOES NOT ENGAGE THE STARTER BENDIX IS THE PROBLEM. YOU CAN REPLACE THE BENDIX OR YOU CAN JUST GET ANOTHER STARTER. IF IT IS GRINDING AWAY AND NOT ENGAGING CORRECTLY IT WILL DAMAGE THE RING GEAR ON YOUR FLYWHEEL EVENTUALLY. REPLACEMENT OF THE FLYWHEEL WILL BE COSTLY IF YOU DON'T DO YOUR OWN WORK. ALSO TO REPLACE THE FLYWHEEL IS A LITTLE LABOR INTENSIVE AND REQUIRES SOME TIME TO COMPLETE.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
If the check engine light does NOT come on when cranking, at the times
when it won't start, and the relays are clicking and buzzing, then your ECU is in need of repair. The engine will
only start after the check engine light comes on and the ecu is what
controls that. ECU is likely going bad, causing the delayed start problem
typical of early 90's jeeps. Reasonably priced repair or replacement services for your
jeep ECU are available on ebay.
if the motor turn over but will not start try looking at the cps(crank position sensor)it would create a no spark condition. its located at the back of the engine right at the bell housing for the transmission.you can test it with an ohms meter or just replace it.
Try this: turn key on for 5 seconds,but dont start. turn it off and turn it on again for 5 seconds then try to start it. If it starts up better, you need to test the fuel pressure.
hook up a test gauge to the test port on the fuel rail, try to start and watch fuel pressure, after it builds.to its max turn engine off, it should then hold pressure for a few or more minutes. if it doesnt there are three things that can let it bleed down.
There is a check valve built into the fuel pump that could be stuck open,
An injector could be leaking,
Or the pressure regulator could be leaking.
If it still has problem check your spark plugs to see if they are worn out with too much gap.
I THINK I ALREADY SENT YOU AN ANSWER, BUT IF NOT HERE GOES AGAIN. YOUR STARTER BENDIX SOUNDS BAD. IT IS LOCATED IN THE STARTER. YOU CAN REPLACE IT, OR JUST GET ANOTHER STARTER AND PLACE THAT IN YOUR VEHICLE. PERFORM THE REPAIR SOON SO YOU DON'T DAMAGE THE RING GEAR ON YOUR FLYWHEEL. THAT WILL BE A VERY EXPENSIVE PROCESS FOR YOU IF YOU HAVE IT DONE AT A GARAGE.