Question about 1995 GMC Yukon

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1995 gmc yukon.third gear & od slips doesn't engage. check engine light came on, but i disconnected the batt. and that cleared the comp. i believe it is the sensors that tell the vortex engine and tranny to shift. help! what can i do?

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It sounds like your Yukon is running on the limp mode. On the limp mode, the truck will not go pass third gear. it could be as simple as tune up such as getting a miss fire will cause your Yukon to go in the limp mode.
Not sure if your Yukon is still running OBD1 system, that year was the change over year. Here is a link if it is a ODB1 system for you go retrieve the DTC codes. http://www.troublecodes.net/GM/ If your Yukon is on the OBD2 system, then your going to have to get it scanned. I believe Auto Zone can scan it for you free of charge.
Good luck and hope this helps you out, Oh and Auto Zone has the step by step instruction to the repairs need to be done to your Yukon.

Posted on May 13, 2009

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