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Author Topic: Heater problems.  (Read 289 times)
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badinc1
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2002 Chevy Avalanche Z-71 4x4

Location: Londonderry, New Hampshire

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« on: 11/16/09 07:47 PM »
I have a 2002 Chevy Avalanche Z-71 K1500, and when I use my heater, unless it's all the way on max. [82 degress with the red marker] it blows cold air.
When I "click" it onto the 82 degree max setting, it then lows hot air, at 80 degress it blows cold air.
I don't have the "dual" climite control, but I do have climate control with both the temp. settings and auto setting.
I have my settings on the fan on 3/4 high to full high speed, and my temp. setting on anywhere from 78 degrees to 80 degrees, with it blowing cold air.
It only blows hot air if I have it on the max 82 degree setting.
I can not figure this out to why this is doing so ?
Any ideas ?
My water temp. gauge is reading 200 to 225 degrees.
Thanks for the help,
Bobby.   banghead
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ygmn
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« Reply #1 on: 11/17/09 09:27 AM »
Electronic heater control..

nothing coolant related ...
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ItsStopher
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« Reply #2 on: 11/17/09 09:44 PM »
Can you have it scanned for codes?

Did it have and of these - B0229, B0414, B0434, B3761 or B3764?
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badinc1
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2002 Chevy Avalanche Z-71 4x4

Location: Londonderry, New Hampshire

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« Reply #3 on: 11/19/09 11:18 PM »
I don't have a scanner.
I really hate to bring it to the Chevy dealer and have to pay $90.00 per hour for them to experiment on it.
Bobby.
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Stophers Stomper

Location: Sierra Vista, AZ

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« Reply #4 on: 11/19/09 11:43 PM »
Do you go to a local auto parts store.... AutoZone.... PepBoys... They can scan it for you. Or even go to walmart and pick up one for about $60.
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02Z71 IBM(Born10/01),FTADRLs, F900BT, CubbyCam, S&B CAI, TransOilCooler, GibsonSwepSide, StripemanLetters, all4brake, RemoteTailgatelock, AmpBypass, RelocatedTrailerPlug, IBM Bowtie, SailPanelLEDs, ViperSST5900, WhelenStrobes, 05ElectricFans, 160DegTStat, 200aAlt, RS9000X w/inCabController, BlockHeater, allonhi, HPTuners, Sportwing, TrainHorns, OnBoardAir, 4Hella550s, 6inRoughCountryLift 17x9 AR ChamberRims, 35x12.5 ProCompXtreme, Richmond4.56s Front&Rear, Shortie Headers
badinc1
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2002 Chevy Avalanche Z-71 4x4

Location: Londonderry, New Hampshire

Joined: Mar 2009
« Reply #5 on: 11/20/09 06:44 PM »
Quote from: ItsStopher on 11/17/09 09:44 PM
Can you have it scanned for codes?

Did it have and of these - B0229, B0414, B0434, B3761 or B3764?


Can you please tell us what those codes mean ?
Thanks,
Bobby.   Help me!
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Stophers Stomper

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« Reply #6 on: 11/20/09 07:18 PM »
If you have one or more of those codes it will tell us where to start looking for the problem.
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02Z71 IBM(Born10/01),FTADRLs, F900BT, CubbyCam, S&B CAI, TransOilCooler, GibsonSwepSide, StripemanLetters, all4brake, RemoteTailgatelock, AmpBypass, RelocatedTrailerPlug, IBM Bowtie, SailPanelLEDs, ViperSST5900, WhelenStrobes, 05ElectricFans, 160DegTStat, 200aAlt, RS9000X w/inCabController, BlockHeater, allonhi, HPTuners, Sportwing, TrainHorns, OnBoardAir, 4Hella550s, 6inRoughCountryLift 17x9 AR ChamberRims, 35x12.5 ProCompXtreme, Richmond4.56s Front&Rear, Shortie Headers
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« Reply #7 on: 11/21/09 12:54 PM »
Quote from: badinc1 on 11/20/09 06:44 PM
Can you please tell us what those codes mean ?
Thanks,
Bobby.   Help me!

They are BODY computer error codes... (engine codes start with P)

Link to some answers:
http://www.automotivehelper.com/topic411103.htm
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Chevy Avalanche Fan Club Forum  |  Avalanche Owners Zone  |  Chevrolet Avalanche Problems, Questions & Answers  |  Problems: Systems (Moderators: Loggie, ItsStopher)  |  Topic: Heater problems. « previous next »
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