temperature ?

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Jun 16, 2011 | 09:34 PM

shihiran

Thread Starter

Racer

Joined: Sep 2006

Posts: 412

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From: FLORISSANT MO.

temperature ?

Hey fellows I have a temperature question. Lets say it is like 95 degrees outside and while just driving in stop and go traffic. why do my temperature goes all the way to 220-230, is that normal? I can't recall it doing that times ago. It never say temperature to hot or reduce power or anything. What it might be, thermostat is new. Thanks

Jun 16, 2011 | 11:14 PM

Rebel 1

Drifting

Joined: Apr 2010

Posts: 1,443

Likes: 7

From: Bristol raceway area

Did you check the radiator for bugs and debris? When this stuff builds up you won't get the proper flow of air through it. When we got our '02 the original owner never cleaned it, It Was Bad!

What temp stat did you buy? Stock is 187*. Did you check it in a pan with water heating up to near boiling using a meat thermometer or other to see at what temp it opens? Good luck.

Bob

Jun 16, 2011 | 11:36 PM

Bill Curlee

Tech Contributor

Joined: Dec 1999

Posts: 32,910

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From: Anthony TX

CI 6,7,8,9,11 Vet

St. Jude Donor '08

COMPLETLY NORMAL! The C5/C6 is designed to run arund 200-230. You can install a 160 stat and reprogram the fans and it will run cooler.

Its alyways a good idea to inspect/clean and back flush the radiator cooling fins with a garden hose!

BC

Jun 16, 2011 | 11:45 PM

jcgunn

Melting Slicks

Joined: Mar 2004

Posts: 2,384

Likes: 403

From: Horseshoe Bend ID

Quote:

Originally Posted by Bill Curlee

What he said...You will see 198 all day on the road--and then it will hit 220 at a stop light, 228 at the Wendy's drive thru--all is well!

Jun 17, 2011 | 02:30 AM

rick4grafx

Instructor

Joined: Nov 2010

Posts: 168

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From: Northridge CA

Temp. Gauge Accuracy?

OK, I have been wondering the same thing. However my temp gauge never gets past about 220, but with that said, I have been wondering, which gauge would be considered more accurate? The analog gauge in the instrument cluster, or the digital reading within the DIC.?
Same question regarding the oil pressure and battery charging indicator on the clusters.

Jun 17, 2011 | 06:35 AM

Oldvetter

Le Mans Master

Joined: Feb 2002

Posts: 6,937

Likes: 21

From: Waldorf MD

Here is info from Shop Manual:

C5 Cooling Fans Operation

The low speed cooling fan is commanded on when the coolant temperature reaches 108°C (226°F). It is turned off if the coolant temperature lowers to 104°C (219°F). The high speed cooling fan is commanded on when the coolant temperature reaches 113°C (235°F). It is turned off if the coolant temperature lowers to 108°C (226°F). When the A/C is on and the coolant temperature reaches 85°C (185°F), the low speed cooling fan will be turned on at vehicle speeds less than 56 kPh (35 mph).

Jun 17, 2011 | 06:41 AM

Oldvetter

Le Mans Master

Joined: Feb 2002

Posts: 6,937

Likes: 21

From: Waldorf MD

Quote:

Originally Posted by rick4grafx

1) Probably doesn't get past 220 F because either 1) you have A/C on, and/or 2) someone re-programed fan on temperatures.

2) Both analog and digital gauges use the SAME temperature sensor, so there is no difference, but digital readout is easier to determine actual temperature and offers better "resolution". This is the same with using the digital readout with all other functions.

Now, LT1's used 2 temperature sensors, one for the analog gauge and one for the digital/ECM.