Question about 2002 Chevrolet Silverado 2500HD

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I have Silverado 2005, 2500 HD, the low coolant sign showed up. How to solve it?We just put the right hub.

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Check the coolent

Posted on Jun 04, 2009

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I just changed the water pump, replaced the coolant, no leaks and now my low coolant light keeps flashing it's not low is this normal?


Low coolant light came on--Holy ****! - 1999-2006 & 2007-2013 ...

www.gm-trucks.com/.../51843-low-coolant-light-came-on-holy-****/
Apr 22, 2006 - 13 posts - ‎10 authors I was driving down the freeway today and got a "low coolant" message. As you can ...Bob 2000 Ext cab Silverado 4x4 w/ 5.3. Back to top ... 2002 Silverado Battery light and low voltage on gauge ...
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Sep 12, 2015 | 2000 GMC Sierra

1 Answer

Where's the coolant level sensor located on a 6.0 '02 Chevy 2500 HD Silverado?


this might be important for you to know
Quote:

08-08-49-002: False Triggering of Low Coolant Level Warning Message (Reprogram HVAC Control Module) - (Feb 13, 2008)

Subject:
False Triggering Of Low Coolant Level Warning Message (Reprogram HVAC Control Module)

Models:
2007-2008 Chevrolet Silverado 2500 and 3500 Heavy Duty Series Only
2007-2008 GMC Sierra 2500 and 3500 Heavy Duty Series Only
with 6.6L Diesel Engine (VIN 6 -- RPO LMM)

--------------------------------------------------------------------------------
Condition
Some customers may comment that a "COOLANT LEVEL LOW ADD COOLANT" message is displayed in the Driver Information Center (DIC) even though the coolant level is normal.

Cause
This condition may be caused by a false reading during off-road driving or in high slush conditions.

Correction
Do This - Reprogram the HVAC control module.
Don't Do This - Do not replace the coolant level sensor, HVAC control module or radiator surge tank.


A revised calibration has been developed to address this condition. Technicians are to reprogram the Heating Ventilation and Air Conditioning (HVAC) control module with the latest software available on TIS2WEB. Refer to the Service Programming System procedures in SI. As always make sure your Tech 2 is updated with the latest software version.


Warranty Information
For vehicles repaired under warranty, use:
Labor: Operation D4707
Description: HVAC Control Head Module or Assembly Reprogramming with SPS
Labor Time: Use Published Labor Operation Time

Dec 02, 2013 | 2002 Chevrolet Silverado 2500HD

1 Answer

2006 chevy silverado 2500hd truck heats up to operating temp while in parking lot blower works well but truck will not blow any hot air until truck is driving at at least 15 to 20 mph. fuses good think...


If I understand you correctly, your temp gauge shows correct operating temperature, your blower fan blows air that you can feel with your hand from the right floor or dash outlet, but that air doesn't feel warm until you are moving?

If so, several possibilities come to mind. One is that your coolant level is low. Even though your temp gauge reads in the right range, the coolant level could be low enough that it doesn't reach the heater core until there is enough engine RPM to create more pressure from the water pump and force what coolant is there toward the heater core. Another possibility is that your heater controls are not able to do their job. A stuck flapper in the duct or a malfunction with the temperature control system could be causing the problem, and at 15-20 MPH there is enough air coming through the outside air vents to provide some heat.

I'd check the coolant level first, though. The other possibilities are more far-fetched.

Nov 26, 2010 | 2006 Chevrolet Silverado

2 Answers

Drain Engine Coolant in 2005 Chevy Silverado 2500 HD


there is a petcock at the bottom of the rad drain ti from there and use a antifreeze tester to check protection temp

Nov 18, 2009 | 2005 Chevrolet Silverado 2500HD 2WD

1 Answer

How to put my 89 silverado into 4 wheel drive


It doesn't have manual hubs. Does this have a lever on the floor or push button 4 wheel

Aug 22, 2009 | 1989 Chevrolet Silverado 2500

2 Answers

Low coolant light keeps coming on


head gasket problem you need to get it to a good garage before you ruin the motor

Mar 14, 2009 | 2002 Chevrolet Silverado 2500HD

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