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08-26-2012, 03:13 PM
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#1 |
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laying low
 
Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,016
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Re: blown heater core
One month since the repair and the vent temp problem is back. It will be going back to the shop tomorrow.
Do you think it is only a door misalignment causing it to go warm on the one side? Is the door actuator adjustable?
__________________
Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
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08-26-2012, 06:25 PM
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#2 | |
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Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: blown heater core
Quote:
If they will not fix it....You can get by with "recalibrating" it when it acts up.... Place the ignition switch to the OFF position. Remove the HVAC/ECAS fuse for a minimum of 10 seconds. Install the HVAC/ECAS fuse. Start the vehicle. Wait 40 seconds for the HVAC control module to self-calibrate. IMPORTANT: Do not adjust any controls on the HVAC control module while the HVAC control module is self-calibrating. If interrupted, improper HVAC performance will result. |
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08-26-2012, 09:12 PM
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#3 |
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laying low
Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,016
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Re: blown heater core
Thank you CB.
__________________
Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
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08-29-2012, 07:13 PM
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#4 |
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laying low
Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,016
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Re: blown heater core
They put on another left side actuator. Lasted one month to the day I think.
I wonder if the blend door is broken or misaligned how hard is it to replace it. This truck has the dual climate control. We've been getting some small bits of foam out of the vents on the right side. The right side functions correctly so I'm not too worried over the loss of door seal foam. I just don't want to have to keep replacing this left side actuator.
__________________
Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
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08-29-2012, 07:36 PM
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#5 | |
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Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: blown heater core
Quote:
The actuator isnt bad or going bad, It only "seems" to fix it because of the recalibration. My old 04 was doing the exact same thing.....I just kept recalibrating it every month or so. My 06 is doing OK....Knock on wood 
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08-29-2012, 07:43 PM
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#6 |
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laying low
Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,016
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Re: blown heater core
Dern, I don't want them or me to have to pull the dash out for this. I saw a video of a fella replacing his own heater core. Thats deeper than I want to get into it.
How long did you put up with it on your 04? The next time ours does it I will try your recal sequence.
__________________
Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
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08-29-2012, 08:17 PM
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#7 |
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Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: blown heater core
About 2 years, Didnt bother me really, I was going to fix it But someone wanted to pay more money than it was worth.
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