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Unread 08-11-2013, 09:54 AM   #1
TwistedXJ
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2001 XJ Cherokee 
 
Join Date: Feb 2007
Location: Buckeye, AZ
Posts: 168
Jeep died, electrical stays good

So the wife was driving the our 2001 Jeep Cherokee 4.0 4x4 the other day and it just died and would not start backup.

I get to it after about an hour 113 degrees out and try to start it and it won't go. I swap relays with the o2 and still nothing. I come back in the evening with a buddy to tow it and it cranks right up but now gives code P0136. I drive it down the road and it dies, we tow it, then try to start about 8 miles later and it starts up no problem.

At home I swap the relays back clear the code and wait for it to come back and nothing. I have been able to leave it running for about 15 - 20 minutes without driving a couple times now and it does fine. I can hear the pump energizing also.

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2001 Jeep Cherokee Sport 4.0L HO, 4x4
4.88's, Aussie Lockers
15x8, 35" KM2's
5.5 RE LA
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Unread 08-11-2013, 10:22 AM   #2
CJ7-Tim
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2000 XJ Cherokee 
 
Join Date: Apr 2002
Location: out in the garage - Minneapolis, Minnesota
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P0136 (M) O2 Sensor 1/2. O2 Sensor Heater Circuit Malfunction. Oxygen sensor heater element malfunction.

Check the O2 sensor fuses. Check the sensor wire harness and wire plugs, test the O2 sensor function.


The most common heat related failure is a faulty Crankshaft Position Sensor, which may or may not throw a Check Engine Light trouble code
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Unread 08-11-2013, 10:56 AM   #3
TwistedXJ
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2001 XJ Cherokee 
 
Join Date: Feb 2007
Location: Buckeye, AZ
Posts: 168
Quote:
Originally Posted by CJ7-Tim View Post
P0136 (M) O2 Sensor 1/2. O2 Sensor Heater Circuit Malfunction. Oxygen sensor heater element malfunction.

Check the O2 sensor fuses. Check the sensor wire harness and wire plugs.


The most common heat related failure is a faulty Crankshaft Position Sensor, which may or may not throw a Check Engine Light trouble code
Well the thing is the code is no longer re occurring as I swapped the relay back.
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2001 Jeep Cherokee Sport 4.0L HO, 4x4
4.88's, Aussie Lockers
15x8, 35" KM2's
5.5 RE LA
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