2000 Chevy Monte Carlo Temp Gauge

Tiny
FUZZDUZZ
  • MEMBER
  • 2000 CHEVROLET MONTE CARLO
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 11,300 MILES
When I drive short distances temp guage on dash works fine. When I drive longer distances (45 min-longer ) temp guage stops working. Have had the plug replaced. The sensor replaced. And still same thing. Without a temp reading the fan is running all the time by default.
Saturday, January 2nd, 2010 AT 8:18 AM

11 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
If the fan is coming on, then the problem has to be between the temp sending unit and the relay. Check there for a loose or damaged wire. Also, check the relay to make sure it is working properly. Let me know what you find.
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Saturday, January 2nd, 2010 AT 2:49 PM
Tiny
FUZZDUZZ
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Where would I find the relay for this?
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Monday, January 4th, 2010 AT 5:06 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Under the hood in the power distribution center.
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Monday, January 4th, 2010 AT 6:11 PM
Tiny
FUZZDUZZ
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Which relay is it gonna be?
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Monday, January 4th, 2010 AT 6:37 PM
Tiny
JACOBANDNICKOLAS
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WHen you open the power block, the lid should identify what each relay is for.

Let me know.

Joe
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Tuesday, January 5th, 2010 AT 11:32 PM
Tiny
FUZZDUZZ
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I didn't see any relays that said tempature gage or anything that might br connected to the temp guage?
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Wednesday, January 6th, 2010 AT 4:31 PM
Tiny
JACOBANDNICKOLAS
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Ar
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Wednesday, January 6th, 2010 AT 6:45 PM
Tiny
FUZZDUZZ
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The only thing I see is (A.I.R.) Relay (Air Induction Reaction Relay). Is this it?
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Thursday, January 7th, 2010 AT 8:46 AM
Tiny
JACOBANDNICKOLAS
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No. Is has it's own. The AIR system measures the amount of vacuum / air entering the intake.
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Wednesday, January 13th, 2010 AT 9:07 PM
Tiny
FUZZDUZZ
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Then I can't find it. Nothing resembles "temp guage"
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Thursday, January 14th, 2010 AT 5:38 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
I was able to find a wiring harness that shows where the relays are. See if this helps:


https://www.2carpros.com/forum/automotive_pictures/249084_fan_4.jpg

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Thursday, January 14th, 2010 AT 4:25 PM

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