Temperature gauge stuck on hot!

2020 PP2 5.0

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Mar 31, 2020
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My temperature gauge in my 1994 mustang GT 5.0 is stuck on hot.I replaced the temperature sending unit and the CTS and had no luck. What should I try next?!
 
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revhead347

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Is the needle pegged when the car is off? Does it go right to the peg when the KOEO position? Give us a little more detail.

Kurt
 

2020 PP2 5.0

New Member
Mar 31, 2020
14
0
1
25
Texas
Is the needle pegged when the car is off? Does it go right to the peg when the KOEO position? Give us a little more detail.

Kurt
Is the needle pegged when the car is off? Does it go right to the peg when the KOEO position? Give us a little more detail.

Kurt
The needle is pegged when the car is off and on at all times. It slightly moves back when I start the vehicle but still doesn’t make it out of the H!
 

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revhead347

My mission is to out curmudgeon you
15 Year Member
Jun 14, 2004
8,169
1,079
214
40
Acworth, GA
It's probably a bad gauge. I am sure there are ways to test for that, but no cheap ones. It's a very simple circuit, basically the gauge and the sender are the only two parts.

Kurt
 
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