Outside Temp Sensor...
Thread Starter
Racer
Joined: May 2004
Posts: 264
Likes: 0
From: Miami Florida
Outside Temp Sensor...
On 90+ degree weather here in Miami the temp reads 65. Does anyone know how to correct the false readings? Is there a fuse that I can change or reset? Thanks.
-Lex
-Lex
Last edited by Lex Luthor; Jul 18, 2004 at 06:10 PM.
Thread Starter
Racer
Joined: May 2004
Posts: 264
Likes: 0
From: Miami Florida
Originally Posted by speedyc5
Im sure the sensor is bad, mine was. It is located on the right side in front of the rad. and AC coil. You can see it very easy with the car raised alittle.
Melting Slicks
Joined: Aug 2001
Posts: 3,046
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From: Wichita KS
Originally Posted by speedyc5
Im sure the sensor is bad, mine was. It is located on the right side in front of the rad. and AC coil. You can see it very easy with the car raised alittle.
Thread Starter
Racer
Joined: May 2004
Posts: 264
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From: Miami Florida
Originally Posted by mapman
You might also check the sensor connector for corrosion.
Instructor
Joined: Jul 2003
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From: Torrington CT
I read a post quite a while ago that said the guy kept a couple of spares in his glove box because they failed so often!!!! I know mine in intermittent.... replacement and checking the contacts are primo advice.
L
L
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From: His name is Tandy Dillen. Altruism is the last Frontier.
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About a year ago I had beers with an engineer who helped build the temp module in the C5. I asked him how it could read "this" when I know it's "that".
He kinda chuckled. And went into an explanation of how they taught it to remember the last actual ambient temp when the car was moving. The computer takes into account the added temps of asphault and sitting in one place in the sun for a time parked. It seems to compensate for those situations. But it always starts out at the last recorded ambient temp.
So, if your seeing 65deg in the morning, drive it 2 miles, park it for 3 hours when the actual ambient temp goes to 90, and get back in the car and call
right away, maybe you need to move around a bit and let the computer catch up.
He was very specific and it answered a lot of my questions which were much the same as yours.
But if after a time it doesn't calibrate as you move on down the road, perhaps the above posts are right on point. I'd ask the dealership to replace that temp sense module.
$0.02
Michael
He kinda chuckled. And went into an explanation of how they taught it to remember the last actual ambient temp when the car was moving. The computer takes into account the added temps of asphault and sitting in one place in the sun for a time parked. It seems to compensate for those situations. But it always starts out at the last recorded ambient temp.
So, if your seeing 65deg in the morning, drive it 2 miles, park it for 3 hours when the actual ambient temp goes to 90, and get back in the car and call
right away, maybe you need to move around a bit and let the computer catch up.He was very specific and it answered a lot of my questions which were much the same as yours.
But if after a time it doesn't calibrate as you move on down the road, perhaps the above posts are right on point. I'd ask the dealership to replace that temp sense module.
$0.02
Michael
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Pro
Joined: Apr 2003
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From: Memphis TN
I had been putting off fixing this because I thought I had to do it from under the car.After reading this post, it is easily accessible from above. My harness looks ok, so I guess i will just be replacing the sensor. Is the sensor the entire black plastic that has a push screw to attach to the undercover or is the sensor inside this black plastic thingy?
Melting Slicks
Joined: Jan 2004
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From: Currently living in and loving... Chico, CA
I'm reading this with interest, because I've got the same problem.........on an eight month old '04! What blows me away here is that I've also got a '99 'Hoe and a '00 Denali that have never had a problem with the temp sensor. WTF?!
Pro
Joined: Apr 2003
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From: Memphis TN
Be careful in looking for the part. There is an air intake temp sensor, but this part is the ambient air temp sensor. Part 10248414. $4.07 at gmpartsdirect but $7.95 shipping. I may go to the dealer and see how much it costs.
Melting Slicks
Joined: Jun 2003
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From: Yuma CO
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From my recent experience, there is one other thing to worry about with this sensor. My A/C was acting up very badly recently and acted just like the ones on which the front seal had gone out on the compressor, which some members had related here. I was all ready to swallow a very expensive repair and the tech at Purifoy Chevrolet (yet another major kudos to an awesome dealer that specializes in Vettes and takes their owners' concerns seriously) checked it all out and found that my only problem was this sensor. He replaced the sensor, about ten bucks, and all is right with the world again!!!!!!
Thanks again Purifoy!!!!!! I will never go ANYWHERE else for service on my Baby!!!!!!!!
Thanks again Purifoy!!!!!! I will never go ANYWHERE else for service on my Baby!!!!!!!!
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Looks like you just need to replace the sensor. It is located up under the opening for the radiator under the front fascia on the passenger side.
Burning Brakes
Joined: Jul 2004
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From: Spring Branch Texas
Originally Posted by DocToss
Be careful in looking for the part. There is an air intake temp sensor, but this part is the ambient air temp sensor. Part 10248414. $4.07 at gmpartsdirect but $7.95 shipping. I may go to the dealer and see how much it costs.
Just replaced mine this past weekend. I ran into the same problem with "rockauto". They wanted $8 for the part and $8 for shipping. I stopped by my dealer who had it in stock for $8.14. (The part # above is correct). It's an easy replacement, took 10 minutes.
You can see the sensor from above. I was able to reach my arm down from above to disconnect the wires. Then reached under the grill to push the retainer pin up from below. Clipped the new sensor into the wires and pushed in the new retainer pin.
All is fine now!
Burning Brakes
Joined: Jul 2004
Posts: 1,119
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From: Spring Branch Texas
I'm sure your warranty would cover it. I really enjoy working on my car, so I would rather spend $8 to fix it myself than to spend all the time to put it into the dealer and have someone else do it. (You never know what happens to cars in shops these days).
Le Mans Master
Joined: Aug 2003
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From: American Canyon Lethal Injection
Originally Posted by DSTURBD
From my recent experience, there is one other thing to worry about with this sensor. My A/C was acting up very badly recently and acted just like the ones on which the front seal had gone out on the compressor, which some members had related here. I was all ready to swallow a very expensive repair and the tech at Purifoy Chevrolet (yet another major kudos to an awesome dealer that specializes in Vettes and takes their owners' concerns seriously) checked it all out and found that my only problem was this sensor. He replaced the sensor, about ten bucks, and all is right with the world again!!!!!!
Thanks again Purifoy!!!!!! I will never go ANYWHERE else for service on my Baby!!!!!!!!
Thanks again Purifoy!!!!!! I will never go ANYWHERE else for service on my Baby!!!!!!!!
Rsty
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Joined: Jul 2002
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From: Nevada and Florida
"The computer takes into account the added temps of asphault." "It seems to compensate for those situations."
Not really true. In my garage the display temp will read exact as verified by a calibrated digital thermometer. After driving say 15 minutes, the display reads 7-10 degrees hotter than ambient. I have to believe the hot air from the pavement is causing this error. This is with 110* ambient temps.
Not really true. In my garage the display temp will read exact as verified by a calibrated digital thermometer. After driving say 15 minutes, the display reads 7-10 degrees hotter than ambient. I have to believe the hot air from the pavement is causing this error. This is with 110* ambient temps.