Temp gauge reads very low with hot engine
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- Advanced Member
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- My tercel:: 1985 Toyota Tercel 4wd Sr5, Fed emission but no cat converter. Manual transmission, with air conditioning.
- Location: Medford, Oregon
Temp gauge reads very low with hot engine
After removing my carb to try to rebuild it, I notice my temp gauge reads very low, like barely above cold, but my cooling fan kicks on. What is going on here? I don't want to overheat my engine!
- dlb
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- My tercel:: '87 sr5, '83 dlx parts car
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Re: Temp gauge reads very low with hot engine
Is the wire for the temp gauge connected? It clips onto the little metal tab at the front of the engine, near the TVSV.
-
- Advanced Member
- Posts: 55
- Joined: Sun Sep 16, 2018 5:24 pm
- My tercel:: 1985 Toyota Tercel 4wd Sr5, Fed emission but no cat converter. Manual transmission, with air conditioning.
- Location: Medford, Oregon
Re: Temp gauge reads very low with hot engine
Yes, the wire is connected, and the connection is clean. I'm wondering if the sensor itself is the issue. My coolant is clean and fairly dark green, maybe I need to drain some off and add distilled water to the system.
- dlb
- Highest Ranking Member
- Posts: 7320
- Joined: Mon Jul 06, 2009 9:03 pm
- My tercel:: '87 sr5, '83 dlx parts car
- Location: bc, canada
Re: Temp gauge reads very low with hot engine
Yeah, my guess would be the sensor or the gauge. I can't remember if the FSM has a test procedure for the sensor, like how many ohms it should be at certain temps. I would look into that first.