When I use AC on automatic function the blower speed has recently become erratic. What do y'all think? TIA
BW
Rock Chalk, Jayhawk
When I use AC on automatic function the blower speed has recently become erratic. What do y'all think? TIA
BW
B21_RAIDER
Belt or exhaust drive? Does engine RPM or exhaust tone also change? What happens when AC switches off? First guess: PCM is not adapting or attempts to but is off the map.
T242 - Ricer ricer
Supercharger blower or HVAC blower?Originally Posted by 04 Quicksilver
TIA? transient ischemic attack?
WLB
BB#1) 1996 ImpalaSS - 16,500 miles - 100% stock
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BB#2) 2003 Marauder (300a) - 34k miles - Daily Driver
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Rock Chalk, Jayhawk
It's the HVAC blower. What's involved in investigating and replacing BCM?
Weißbirke Plünderer
2004 SB Ported Trilogy 48
Has supporting mods and stuff
Thanks to Marty O for his help in updating this car.
R.I.P.
Rex "SC Cheesehead"
Rock Chalk, Jayhawk
Thank you, sir. Looks to be beyond my mechanical skills. Will get in touch with my technician.
I miss whitey here
Neil that used to work at Firestone opened a shop in Lenexa Kansas
autopia llc http://www.autopiakc.com/
The twins2.3 whipple/aluminatorVortech V-2 lots of goodies
Current marauders
04 DTR totaled JUST NOW starting to part out 7-21-2021 https://youtu.be/REUxjP1BVpg
04 Silver Birch Dark Charcoal Hardtop Whipple Supercharger
04 Silver Birch Dark Charcoal Hardtop V2 Supercharger
04 Silver Birch Dark Charcoal Converted
03 DBP Light Flint #122
03 DBP Dark Charcoal #232
03 Silver Birch 300b Light Flint Going to fix er up
03 Black 300a
04 Silver Birch Dark Charcoal moonroof in the works
04 Heaton Swapped DTR
Joe's Wrecked DTR rebuild thread
Rock Chalk, Jayhawk
Thanks for the info.
Kneel before Zod!
haha. Thanks In Advance
"Come to me, Superman! I defy you! Come and kneel before Zod! Zod! "
Rock Chalk, Jayhawk
Problem(s) solved. BCM replaced; right front window stopped, window regulator replaced; intake manifold gasket replaced. Tech said module was a little rough but he did not have to remove any hoses. Parts $202, labor $315. I already had the gasket. Great customer service. The guy's a wizard!
Senior Member
I took the car out last week and tried to turn the A/C on and nothing happened; blower motor didn't come on at all; what could possibly be the problem? I have heard blower motor or resistor..
Member
It was probably your BCM (Blower Control Module). When they get really hot, the solder joints melt and the unit fails.
My black is on its third, My silver is still on its original.
I sent out my extra BCM ( I keep one on hand) to fastblackmerc. He will fix the solder joints so the new unit once installed,
will not fail. Also check your fuse.
I miss whitey here
Just check the blower 2 wires. If it has power and ground and not working, then the blower motor needs replaced.
if there is no power and ground then BCM or fuse
Current marauders
04 DTR totaled JUST NOW starting to part out 7-21-2021 https://youtu.be/REUxjP1BVpg
04 Silver Birch Dark Charcoal Hardtop Whipple Supercharger
04 Silver Birch Dark Charcoal Hardtop V2 Supercharger
04 Silver Birch Dark Charcoal Converted
03 DBP Light Flint #122
03 DBP Dark Charcoal #232
03 Silver Birch 300b Light Flint Going to fix er up
03 Black 300a
04 Silver Birch Dark Charcoal moonroof in the works
04 Heaton Swapped DTR
Joe's Wrecked DTR rebuild thread
Rock Chalk, Jayhawk
Thanks to Jim for repairing my original BCM which I will have for a spare.
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