1999 Jeep Cherokee check engine light

Tiny
ALLENDSMITH@EVERESTKC.NET
  • MEMBER
  • 1999 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 119,133 MILES
Last week my check engine light came on. Now my transmission does not shift right from 1st to 2nd gear. I did a diagnostic and it came back with an error code of p0720. The error points back to a transmission speed control sensor. I purchased a sensor ( MFG# S41015) but cannot locate where it goes on my transmission. All the diagrams that I have looked at do not resemble my transmission what so ever. Did jeep use different types of transmissions? Is there a simple fix to clear the code and get my jeep running right?

thanks,

Allen
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Sunday, May 30th, 2010 AT 7:00 AM

5 Replies

Tiny
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Hi there,

Which model Cherokee do you have?

Mark (mhpautos)
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Sunday, May 30th, 2010 AT 8:15 AM
Tiny
ALLENDSMITH@EVERESTKC.NET
  • MEMBER
Hi,

Its a 99 Jeep rand Cherokee. I tried to find some info on wat type of engne an transmission but have no luck. I have bee to caning the sensor is easier thanchanging a tire. At last I know where to find the tires. Any info will help greatly. Ihave bookmake your ste because I am sure I will be back.

Allen
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Sunday, May 30th, 2010 AT 1:41 PM
Tiny
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Is this a help?


http://www.2carpros.com/forum/automotive_pictures/61395_Capture_9.jpg



mark (mhpautos)
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Sunday, May 30th, 2010 AT 8:15 PM
Tiny
ALLENDSMITH@EVERESTKC.NET
  • MEMBER
Problem solved! I purchased the output speed sensor from a jeep dealership part #4800879, Mopar. The part cost 23.30 plus tax. It took me about 10 minute to install without any special tools. I kept the battery disconnected for about 20 mintes to clear any codes. The check engine light is gone and the jeep shifts like it was brand new. I might go ahead and replace the input sensor to see if gas mileage improves even more. Thanks for the assist and please pass the info on.

Allen
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Tuesday, June 1st, 2010 AT 4:24 PM
Tiny
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Go to know you got it sorted, thank you for using 2carpros, your feed back is always welcome.

Mark (mhpautos)
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Tuesday, June 1st, 2010 AT 5:39 PM

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