Coolant Temp Gauge

[metalix1021]

I bought a new temp sender because the sensor that was in there was incorrect and was not giving me any reading on my instrument cluster.

New one installed, yay, temp gauge started going up. and up.....and then I noticed that anytime an electral load was initiated, the gauge moved. for example, turning the blower fan on increased the reading on the gauge. Turning the blower fan off caused it to go back down. Headlights cause the same phenomenon.

Ideas? :(

[abepark]

voltage regulator?

[jlevie]

That is probably from a bad SI board.

[metalix1021]

thanks for the responses. ill check that out.

[Gesucht]

I bought a new temp sender because the sensor that was in there was incorrect and was not giving me any reading on my instrument cluster.

New one installed, yay, temp gauge started going up. and up.....and then I noticed that anytime an electral load was initiated, the gauge moved. for example, turning the blower fan on increased the reading on the gauge. Turning the blower fan off caused it to go back down. Headlights cause the same phenomenon.

Ideas? :(

Is it OEM or after market universal gauge ?

[metalix1021]

is it oem or after market universal gauge ?

oem

[Gesucht]

Shouldn't be the SI board batteries.
Or, the wiring harness/socket on the temp sensor was shorted (wrong polarity) when installed ?

[metalix1021]

Shouldn't be the SI board batteries.
Or, the wiring harness/socket on the temp sensor was shorted (wrong polarity) when installed ?

Pretty sure it only goes on one way?