87 chevy astro wont read coolant temp?

boardguy2008

New member
have a 87 chevy astro 4.3 tbi that wont read the temp
the gauge on the cluster stays low all the time
i replace the temp switch and
temp sensor
and still the same
i ground the wire going to the temp switch and the gauge goes all the way up wich means the gauge works
but when i put the wire to the sensor it just wont read the temp
any ideas
 
Back
Top