Jeep Cherokee 94 XJ, Starts but will not move
10-19-2015, 01:20 AM
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Model: Cherokee
Jeep Cherokee 94 XJ, Starts but will not move
Hi,
I recently purchased a 94 Jeep Cherokee XJ off craigslist, and it ran just fine for a while, until over the course of about a month or so it started taking more and more throttle to make the car move. Now, upon first starting it up, RPMs go high, but it wont move until 3000, and then very slowly. Then, the gas pedal stops moving the car altogether.
Its the 4.0L, 6 Cylinder engine, multiport fuel injected, full oil and transmission fluid, no strange sounds, no check engine light when running. I tried doing the key-dance anyways, and got CEL code 36, which http://www.jeep-xj.info/HowtoECUcodes.htm says is a short or disconnection in the air switch solenoid circuit. However, this doesn't seem to be a common problem, and research hasn't turned up any answers as to what this circuit does or how to test it.
Any advice?
I recently purchased a 94 Jeep Cherokee XJ off craigslist, and it ran just fine for a while, until over the course of about a month or so it started taking more and more throttle to make the car move. Now, upon first starting it up, RPMs go high, but it wont move until 3000, and then very slowly. Then, the gas pedal stops moving the car altogether.
Its the 4.0L, 6 Cylinder engine, multiport fuel injected, full oil and transmission fluid, no strange sounds, no check engine light when running. I tried doing the key-dance anyways, and got CEL code 36, which http://www.jeep-xj.info/HowtoECUcodes.htm says is a short or disconnection in the air switch solenoid circuit. However, this doesn't seem to be a common problem, and research hasn't turned up any answers as to what this circuit does or how to test it.
Any advice?
10-19-2015, 03:03 PM
#2
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Year: 1999
Model: Cherokee
Engine: 4.0 inline 6
If u put it to the mat, does it slowly start going and can u eventually get it to around 40mph? something could be causing you to be in "limp" mode which is like trying to take off on a bicycle in 24th gear
10-19-2015, 04:08 PM
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Year: 2001
Model: Cherokee
Engine: 4.0 165,00 Miles
From what I have read and your 36 code you have a faulty air temperature sensor. This sensor tells the PCM the temperature of the air entering the intake manifold. The PCM needs an accurate input so it can balance the air/fuel mixture properly. Just like a bad coolant sensor, a bad air temperature sensor can upset the fuel mixture causing stalling problems. type this in you tube for testing info. Air Temperature Sensor Testing
10-22-2015, 06:12 PM
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Year: 1999
Model: Cherokee
Engine: 4.0 inline 6
I don't no if there is a true limp mode or not, but it does have a default gear which seems to either be 3rd or 4th. I have personally endured the whole "feels like 24th gear" thing and it was definitely not a transmission problem. I new what the issue was and my tranny would do that exactly when the unrelated problem would happen and if it was restarted it would be fine. and since the issue has been resolved, it wont do it anymore.
Last edited by K2dark_xj; 10-22-2015 at 06:16 PM.
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