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Chris, Shop Foreman
Category: Jeep
Satisfied Customers: 12736
Experience:  Jeep Certified Master Tech
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I have a 1992 jeep YJ w/2.5 4cly. will start but shuts of in

Customer Question

i have a 1992 jeep YJ w/2.5 4cly. will start but shuts of in 3-5 seconds and then will not start unless I pull the battery cabels for 2-3 hours. then it will do it agean
JA: Have you checked the battery, particularly the terminal connections? Are they corroded?
Customer: no all is good
JA: What is the model of your '92 Jeep?
Customer: 92 YJ ?wrangler
JA: Are you fixing your Wrangler yourself? What have you tried so far?
Customer: its a project jeep
JA: Anything else you want the mechanic to know before I connect you?
Customer: new ; plugs, cap, button, wires
Submitted: 18 days ago.
Category: Jeep
Expert:  Chris replied 18 days ago.

Hello, my name is ***** ***** I will assist you today. Tell me does the Jeep have any aftermarket devices installed like an alarm or remote start system?


Customer: replied 18 days ago.
Nothing to due with starting it has aftermarket led headlights
Expert:  Chris replied 18 days ago.
Ok, then you probably have a failing PCM (engine computer ). I say this because of the fact that you have to disconnect the battery for a while before it will start again. If it were a sensor, then disconnecting the battery would have no affect on this problem. So based on what your symptoms are, I am recommending that you replace the PCM. I am 99 % sure that this will fix it.Chris
Customer: replied 18 days ago.
No PCM is new rebilt with a lifetime warranty 3 weeks ago also new fuel pump regulater and filter I have good pressure at the rail also new coil plugs wires cap and button
Expert:  Chris replied 18 days ago.

Did you have this problem with the old PCM?


Customer: replied 18 days ago.
Customer: replied 18 days ago.
Could it be a fuel injector flooding the gas
Expert:  Chris replied 18 days ago.

Well maybe. Pull the spark plugs and see if they are wet or fouled. Let me know.


Customer: replied 17 days ago.
Expert:  Chris replied 17 days ago.
Hmmm, when you do get it to start, does the check engine light stay on while it is running?
Customer: replied 17 days ago.
Customer: replied 17 days ago.
I do not know what it is throwing
Expert:  Chris replied 17 days ago.

Ok, see if you can get an OBD 1 scan tool so we can check for codes. That would be a big help. Maybe you can rent one.


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