2001 Impala Temp gauge stopped workin...

2001 Impala Temp gauge stopped working HELP ME!

Posted in the Chevrolet Impala Forum

Shevelle

Aurora, CO

#1 Nov 16, 2010
The temp gauge stopped working in my 2001 impala. Any advice on possible issues? I cant believe I am stuck with this crappy car I have only had it since may and its been in the shop a couple times The tranny went out.. then the cataledic converter went out.. the tumblers in my ingnition broke.. had some ac issues that magically went away... So frustrating. Any way as far as the temp gauge goes I am not sure where to even start? Advice please?!
Shevelle

Aurora, CO

#2 Nov 16, 2010
Also when I shut of my car the fans are still running for a little bit?
kyle

Redondo Beach, CA

#3 Nov 16, 2010
i have a 01 impala as well, let me tell u ive had it for 2yrs and put $4,500 of work into it, it sucks but now its running great, one of the things i had go wrong was the temp gauge stayed on cold and the fans ran 24/7, i replace the temp sensor located under the throttle, its a $15 or cheaper part depending on where u go, the other thing it might be is the body control module that cost me about $150-$200 not sure cause the dealer did it....hope this helps
zach

Plymouth, MN

#4 Nov 29, 2010
Im getting the same temp gauge and fan problems as Shevelle, but with additional check engine light on. Going to the shop today and hoping that I wont have to pay a lot for these to get fixed. I'll update my comment later with the findings from the shop.
Big Jim

Minneapolis, MN

#5 Dec 29, 2010
zach wrote:
Im getting the same temp gauge and fan problems as Shevelle, but with additional check engine light on. Going to the shop today and hoping that I wont have to pay a lot for these to get fixed. I'll update my comment later with the findings from the shop.
Fan running with car off? Disconnect the battery, wait a few minutes, reconnect.
Shevelle

Aurora, CO

#6 Jan 3, 2011
Well I have found temporary fixes like disconnecting the battery cables for a bit then it comes back on for a week or two (my boyfriend teases me and says that it was just a coincidence and that will not make it come back on) but I swear it does IF that is the case than I am thinking it must be the BCM but is that something that can be replaced by ourselves and not from a shop?( I read somewhere you have to have it set somehow and you cant) Anyway I dont want it in the Shop (I got my car from a buy here pay here YAY for bad credit) anyway they will fix things and add it to my payments but I have had it in and just for them to replace the tranny they ad it for 2weeks I just cant be without my car that long. I was going to try replacing the thermostat or but was told that wouldnt correct the problem either. Oh also the heater only is only bringing in outside air the other button doesnt work so it takes forever to warm up Real nice when trying to defrost my car in the morning in the snow. It will blow heat of course but not as hot as it should be able to
pjnsydsmoma

Chicago, IL

#7 Jan 15, 2011
I also had a non working temp gauge and fans running for about 5 minutes even after I shut the car off. I replaced the Temp sensor like kyle mentioned($13 @ autozone) and both problems went away. Good luck!
cloyd-rivers

Ingleside, TX

#8 Nov 6, 2012
Pretty sure your heater is only suppose to bring in outside air.... that button is only for the A/C. That's how every car i've owned is anyways.
Tired of going to Dealer

Columbia, IL

#9 Dec 25, 2012
GMC 20 Terrain+temp guage go to cold and engie fan runs short time with engine off.
Anonymous

Traverse City, MI

#10 Dec 25, 2012
Big Jim wrote:
<quoted text>
Fan running with car off? Disconnect the battery, wait a few minutes, reconnect.
This is only a temporary fix
Anonymous

Traverse City, MI

#11 Dec 25, 2012
There is already a post with this same issue! Anyways I'll post it again. Do the following and I guarantee the issue will be gone. Do NOT skimp on any of the steps.

The fault is with the Dex-cool Coolant! Dex-cool begins to create a white slippery film in your cooling system and starts to give incorrect temperature readings to the PCM Via the Coolant Temp Sensor. This creates a false positive and turns the radiator fans on full blast all the time. This can wear out fan bearings very fast. Also, b/c your pcm doesnt know your engine is up to temp it is getting too much fuel. Therefor if you have this issue you SHOULD get it fixed asap! Here is the correct way to fix this:

1. Go to a shop that has a coolant flushing machine! Do not just drain and fill the system! Get it flushed!
2. Unbolt both battery cables
3. Clean battery cables and Body Grounds
3. Replace Coolant Temp Sensor, Thermostat and Gasket
4. Refill radiator and burp the system by squeezing the hoses
5. Turn key to ON position for 10min to make sure power is out of the system. This will reset any codes
6. Re-attach battery cables and start car with Rad cap OFF
7. Temp gauge should start working and rad fans should NOT come on
8. Wait for car to get up to temp and the thermostat opens then, top off radiator
Duck

Rockford, IL

#12 Aug 1, 2013
Anonymous wrote:
There is already a post with this same issue! Anyways I'll post it again. Do the following and I guarantee the issue will be gone. Do NOT skimp on any of the steps.
The fault is with the Dex-cool Coolant! Dex-cool begins to create a white slippery film in your cooling system and starts to give incorrect temperature readings to the PCM Via the Coolant Temp Sensor. This creates a false positive and turns the radiator fans on full blast all the time. This can wear out fan bearings very fast. Also, b/c your pcm doesnt know your engine is up to temp it is getting too much fuel. Therefor if you have this issue you SHOULD get it fixed asap! Here is the correct way to fix this:
1. Go to a shop that has a coolant flushing machine! Do not just drain and fill the system! Get it flushed!
2. Unbolt both battery cables
3. Clean battery cables and Body Grounds
3. Replace Coolant Temp Sensor, Thermostat and Gasket
4. Refill radiator and burp the system by squeezing the hoses
5. Turn key to ON position for 10min to make sure power is out of the system. This will reset any codes
6. Re-attach battery cables and start car with Rad cap OFF
7. Temp gauge should start working and rad fans should NOT come on
8. Wait for car to get up to temp and the thermostat opens then, top off radiator
If i may add ...has any one thought of having the cooling system flushed out , then replace the coolant sensor? just saying...
brittany

United States

#13 Nov 21, 2013
Just bought a 2001 impala... and the very next day this same exact issue happened to me. Temp gauge quit working and fans noisily running for five minutes after car shuts off.
Also the aigbag indicator comes off and on for no apparant reason and the blinker is possessed.
Brooke

Antioch, CA

#14 Jun 20, 2014
Your car sounds just like mine!! My car "over heats" it says it ia hot, but open the hood and the fluid is no where near boiling. New pump in feb new hoses, could it just be my thermostat? Also where the hell is my thermostat I do not want to pah for it to be done. I've had to replace the rocker arm, water pump, hoses, rack n pin... ive put so much money into my 01 impala it is crazy!!! Help woth ideas on the gauge saying it is over heatinf but my car isnt really.. also ues the blinker goes crazy but the car shop fixed it some how.
laire

Van Nuys, CA

#15 Mar 29, 2015
I did not flush, but just drained and refilled with water. This seems to have done the trick, but will wait to see if check engine light comes back on after a few miles. If so, at least I know it not the gauge, thermostat or PCM. If this corrects the problem, I give you all the accolades, for very few mechanics know this problem/solution. You are a magician !!!
laire

Van Nuys, CA

#16 Mar 29, 2015
laire wrote:
I did not flush, but just drained and refilled with water. This seems to have done the trick, but will wait to see if check engine light comes back on after a few miles. If so, at least I know it not the gauge, thermostat or PCM. If this corrects the problem, I give you all the accolades, for very few mechanics know this problem/solution. You are a magician !!!
question: If Dex Coolant causes the problem, what type of coolant is recommended, other than Dex or water. Manufacturer recommends Dex.
Daniel

Dallas, TX

#17 Jun 17, 2016
I also had the same problem the gauge not working and the fans stay on for a while after engine off. Replaced the coolant temperature sensor and the fan relays working fine now.
Daniel

Dallas, TX

#18 Jun 17, 2016
Use prestone 50/50 antifreeze all makes and models works great in my impala so far . 2 years and going

Tell me when this thread is updated:

Subscribe Now Add to my Tracker

Add your comments below

Characters left: 4000

Please note by submitting this form you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms. Be polite. Inappropriate posts may be removed by the moderator. Send us your feedback.

Chevrolet Impala Discussions

Title Updated Last By Comments
Impala not starting (Nov '06) Thu Eurica 208
Passlock Security system... (Jan '07) Jul 18 Watsontina 529
strut problems Jul 16 plwntrs 1
2006 impala electrical problems?? (Oct '10) Jul 15 Bennycash 8
2004 chevy impala...im sweating here. Jul 14 Clarinda 4
2002 Impala turn signal went funky now dont work (Mar '07) Jul 13 Jhans 163
2002 Impala Problems (May '07) Jul 11 Kelli 465
More from around the web