Temperature gauge not working

JUANGO

MEMBER
1988 MAZDA B2200
4 CYL
2WD
MANUAL
197,000 MILES

My temperature gauge does not move at all, the guy in Gorman, CA who worked on the blown head gasket. Exchange my radiator along with the water temperature switch. Got a new one but was smaller size threads, got a used one, installed it but no luck?
temperature gauge still shows no movement. Any suggestions what could be the problem? Could it be water thermostat?

JM

4 Replies

RASMATAZ

MECHANIC
75,992 POSTS

It sounds like the thermostat is stuck open. Here is a guide to help you see what you are in for when changing it out:

https://www.2carpros.com/articles/replace-thermostat

Please let us know what happens.

Cheers

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Tuesday, March 10th, 2009 AT 7:56 PM

KRISTENLEE

MEMBER
0 POST

Yep, that was the problem with my truck. FYI Cost me $13.00 for a new one. All fixed!

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Friday, August 31st, 2018 AT 3:03 PM

CRUSTYC23

MEMBER
1 POST
1989 MAZDA B2200

Four cylinder two wheel drive manual.

My temperature guage has stopped working. I tried the "grounding the lead test" at the sending unit but there was no movenent of the guage. All fuses look good and I do not see any obvious wire damage. Any other test I can do?

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Friday, August 31st, 2018 AT 3:04 PM (Merged)

CARADIODOC

MECHANIC
33,742 POSTS

Does the sensor have one or two wires in the connector? If there are two wires, that sensor is for the Engine Computer. Look for a sensor with one wire. That is for the gauge.

If the sensor had just one wire, work your way back to a connector where you can ground it again. The firewall connector is a good place for corrosion to develop in the connector pins.

You might end up in the instrument cluster, but follow the wire to there first.

Caradiodoc

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Friday, August 31st, 2018 AT 3:04 PM (Merged)