Question about 1991 Ford Mustang

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I have a 1991 Ford Mustang GT speedo problem

I have a 1991 Ford Mustang GT Conv. I changed the cluster since the gas guage and the temp guage were not working, and the speedometer was jumping. The gas and temp guages are working now but the speedometer is still jumping all-over. What is the problem?

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  • Anonymous Mar 13, 2014

    1991 mustang gt idles rough. why?

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  • Master
  • 1,605 Answers

Check the cable for the speedometer at the interconect. the cable is loose somewhere along the length of the cable. one back of he meter, 2, interconnect. 3, transmission case.
make sure the inner cable is square not rounded. if os, you need a new cable.

Posted on Nov 06, 2008

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  • Ford Master
  • 21,949 Answers

Speedo inner cable sticking in the outer,take the head out and then pull the inner cable out clean it with an oily rag with a bit of gas on then oil it as you put it back in the outer casing

Posted on Nov 06, 2008

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