1999 Jeep Cherokee check engine light

ALLENDSMITH

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

5 Replies

MHPAUTOS

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31,937 POSTS

Hi there,

Which model Cherokee do you have?

Mark (mhpautos)

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Sunday, May 30th, 2010 AT 8:15 AM

ALLENDSMITH

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3 POSTS

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

MHPAUTOS

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Is this a help?

mark (mhpautos)

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Sunday, May 30th, 2010 AT 8:15 PM

ALLENDSMITH

MEMBER
3 POSTS

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

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