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HVAC Discuss Heating, Ventilation & Air Conditioning related issues on Duramax equipped trucks.

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Old 09-04-2018, 11:59 AM   #1 (permalink)
kmaxed69
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blower motor stays on

I'm having an issue where the HVAC blower motor stays on even with the vehicle shut off. I ended up having to pull the fuse to get it to shut off. Anybody else have this issue?

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Old 09-04-2018, 12:04 PM   #2 (permalink)
OkDually
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Quote:
Originally Posted by kmaxed69 View Post
I'm having an issue where the HVAC blower motor stays on even with the vehicle shut off. I ended up having to pull the fuse to get it to shut off. Anybody else have this issue?
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Old 09-04-2018, 12:56 PM   #3 (permalink)
kmaxed69
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Done, but it doesn't seem to be showing up.
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Old 09-04-2018, 01:13 PM   #4 (permalink)
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Quote:
Originally Posted by kmaxed69 View Post
Done, but it doesn't seem to be showing up.
It is showing up within your post

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1996 K3500 6.5L,( "F" Eng #141 cast block) 5 speed manual, crewcab, dually longbed: 208,000mi.
Diamond Eye 4" Turbo Back Exhaust w/2.5" Flo-Pro Crossover
AirDog II DF165 w/ tank sock delete - XDP
TD-Max boost controller - Kennedy Diesel
OPS extension hose - Leroy Diesel
Glow Plug Harness- PT Wiring Solutions
Glowshift Maxtow EGT,Boost, Fuel gauges
Boost & Fuel Pressure Bolts - Leroy Diesel
2/0 Battery Cable Upgrade - PT Wiring Solutions
PMD w/#9 resistor and Re-Location Kit, mounted to bumper - Leroy Diesel
GM-5 Turbocharger
4.10 gear ratio
OptiLube summer + Formula


Proud member #1039 of The 3500 Dually Club

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Old 09-04-2018, 02:39 PM   #5 (permalink)
kmaxed69
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I try to see if someone else has had the same issue before posting. Most the time someone has. It's been a pretty good truck.
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Edge with juice tuner
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Old 01-26-2019, 10:50 AM   #6 (permalink)
KRUM
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Any update with this issue. I'm experiencing this issue with my truck as of yesterday and is not yet resolved.
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Old 01-27-2019, 11:35 AM   #7 (permalink)
kmaxed69
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Yes. It was the blower control module.
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Old 01-27-2019, 02:27 PM   #8 (permalink)
davester
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thanks for posting your fix.
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Old 02-27-2019, 07:14 PM   #9 (permalink)
DUO_CORE
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Do you have the digital controls in your truck and if so do you know the part number of the BCM and where to obtain one or is it a dealer fix? My 2006 LBZ started with this today. -Thanks, Ed
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Old 03-05-2019, 09:48 AM   #10 (permalink)
Just Tool'n
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Mine did the same thing years ago, it was the Blower control module.
my 05 has the digital controls, ordered new module, easy fix to put in with basic hand tools.

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