Temp gauges flat lined
Joined: 06-09-2009
Posts: 7
From: wurtsboro, ny
Analog Temp Gage Flat and engie coolant reading ---F
Hi all
I seem to have a similar problem. This happened 2x's in the last 20000 miles.
Driving along at highway speeds and I look down to check the gages and I fing the analog temp gage (likely running through the computer) falls flat - no reading what-so-ever.
Since it was warm out, I was using the AC. I also noticing it was blowing warm air.
Later that evening, while driving home I noticed the analog temp gage working and the temp read 189F. The AC also worked... hmmm...
What's more interesting is: no service or engine lights.
Sounds like an electrical issue to me? Any ideas? Temp sending unit?
Thanks!
Warren
I seem to have a similar problem. This happened 2x's in the last 20000 miles.
Driving along at highway speeds and I look down to check the gages and I fing the analog temp gage (likely running through the computer) falls flat - no reading what-so-ever.
Since it was warm out, I was using the AC. I also noticing it was blowing warm air.
Later that evening, while driving home I noticed the analog temp gage working and the temp read 189F. The AC also worked... hmmm...
What's more interesting is: no service or engine lights.
Sounds like an electrical issue to me? Any ideas? Temp sending unit?
Thanks!
Warren
Senior Member
Joined: 04-30-2006
Posts: 9,149
From: Maryland Heights, MO
Hi all
I seem to have a similar problem. This happened 2x's in the last 20000 miles.
Driving along at highway speeds and I look down to check the gages and I fing the analog temp gage (likely running through the computer) falls flat - no reading what-so-ever.
Since it was warm out, I was using the AC. I also noticing it was blowing warm air.
Later that evening, while driving home I noticed the analog temp gage working and the temp read 189F. The AC also worked... hmmm...
What's more interesting is: no service or engine lights.
Sounds like an electrical issue to me? Any ideas? Temp sending unit?
Thanks!
Warren
I seem to have a similar problem. This happened 2x's in the last 20000 miles.
Driving along at highway speeds and I look down to check the gages and I fing the analog temp gage (likely running through the computer) falls flat - no reading what-so-ever.
Since it was warm out, I was using the AC. I also noticing it was blowing warm air.
Later that evening, while driving home I noticed the analog temp gage working and the temp read 189F. The AC also worked... hmmm...
What's more interesting is: no service or engine lights.
Sounds like an electrical issue to me? Any ideas? Temp sending unit?
Thanks!
Warren
Senior Member
Joined: 09-03-2006
Posts: 498
From: chicago
Just ran in to same problem just like to know if there is a thermostat that are made the same as the gm one with out the rubber that cause the problem.. Like any other brand that cost less .. Thanks
Senior Member
Joined: 09-03-2006
Posts: 498
From: chicago
Thanks old blue .. I seen go for like 34$ just crazy for a stat.. What is the link for zzp thanksACDelco 12T103D Professional 180 Degrees Engine Coolant Thermostat with Gasket is this the one?
Member
Joined: 09-08-2008
Posts: 92
From: Tarzana, CA
Pumpkin head as a shade tree Mechanic no reason on an HHR that you can't change out the thermostat in 30 minutes.
Pick one up at a local supply or dealer and get r done :)
At least that way you are out less than $30.00 buck and you know you have a good T-Stat in there. then if this continues chase down a sensor or bad connection.
Just an FYI I recently had the interior lights start turning on by themselves with all doors closed!!! Checked all the door switches etc, and nada, as someone mentioned previously, open that fuse/relay box under the hood and reseat every dang relay, fuse etc in there. After doing that I had no further problems.
And 90% of them moved! as in they were not fully seated.
Pick one up at a local supply or dealer and get r done :)
At least that way you are out less than $30.00 buck and you know you have a good T-Stat in there. then if this continues chase down a sensor or bad connection.
Just an FYI I recently had the interior lights start turning on by themselves with all doors closed!!! Checked all the door switches etc, and nada, as someone mentioned previously, open that fuse/relay box under the hood and reseat every dang relay, fuse etc in there. After doing that I had no further problems.
And 90% of them moved! as in they were not fully seated.
