Cooling Discuss all of the aspects of cooling that you can think of! Radiators, transmissions, electric fans, etc.

A/C/Heater not working correctly

Thread Tools
 
Search this Thread
 
Old 09-22-2012, 09:46 PM
  #1  
Senior Member
Thread Starter
 
dctrouant1995's Avatar
 
Join Date: Mar 2011
Location: dothan, al
Posts: 668
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 pontiac trans am
Engine: None
Transmission: None
Axle/Gears: 10 Bolt
A/C/Heater not working correctly

I just put a new fan motor control switch in, it does adjust it from low to high, but it does not blow hard. When I first put the switch in, it did blow hard. Also I can not get the air to blow out of the dash vents, just the defroster vents, and its always on, even if the switch is off. Any suggestions on what both could be?
Old 09-23-2012, 06:38 AM
  #2  
Moderator

iTrader: (5)
 
JamesC's Avatar
 
Join Date: Aug 1999
Location: Lawrence, KS
Posts: 19,282
Received 93 Likes on 68 Posts
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: A/C/Heater not working correctly

Defrost is the default setting and indicates that there's a vac leak somewhere. Stick your ear to the pass side of the HVAC and you may hear a hiss. If so, the following info will be helpful:

https://www.thirdgen.org/forums/inte...anent-fix.html

JamesC
Old 09-24-2012, 08:51 AM
  #3  
Senior Member
Thread Starter
 
dctrouant1995's Avatar
 
Join Date: Mar 2011
Location: dothan, al
Posts: 668
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 pontiac trans am
Engine: None
Transmission: None
Axle/Gears: 10 Bolt
Re: A/C/Heater not working correctly

Ok I checked for that, I did not hear anything with the car on or off. I also noticed that when I turned the A/C or heat on, when I shut the car off it stayed on, to turn it off I had to just turn the switch to low
Old 09-25-2012, 09:14 AM
  #4  
Senior Member
Thread Starter
 
dctrouant1995's Avatar
 
Join Date: Mar 2011
Location: dothan, al
Posts: 668
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 pontiac trans am
Engine: None
Transmission: None
Axle/Gears: 10 Bolt
Re: A/C/Heater not working correctly

OK I did the fix in the thread you showed me, helped sort of, the blower motor is fine now, now I gotta hunt down an A/C selector switch, can anybody give me a lead to a new one? I can not find one in stock
Old 09-25-2012, 09:34 AM
  #5  
Moderator

iTrader: (5)
 
JamesC's Avatar
 
Join Date: Aug 1999
Location: Lawrence, KS
Posts: 19,282
Received 93 Likes on 68 Posts
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: A/C/Heater not working correctly

Originally Posted by dctrouant1995
now I gotta hunt down an A/C selector switch, can anybody give me a lead to a new one?
Valve Vac Sel GM part # 16032395.

JamesC
Old 09-25-2012, 07:40 PM
  #6  
Senior Member
Thread Starter
 
dctrouant1995's Avatar
 
Join Date: Mar 2011
Location: dothan, al
Posts: 668
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 pontiac trans am
Engine: None
Transmission: None
Axle/Gears: 10 Bolt
Re: A/C/Heater not working correctly

found it! Thanks!!! got it ordered!
Old 09-25-2012, 08:30 PM
  #7  
Junior Member

 
VanWailin's Avatar
 
Join Date: May 2005
Location: Punta Gorda, Fl
Posts: 12
Likes: 0
Received 0 Likes on 0 Posts
Car: 1992 Chevrolet Camaro RS
Engine: 305
Transmission: 700r4
Re: A/C/Heater not working correctly

Just curious. Where did you order it from?
Old 09-26-2012, 10:17 AM
  #8  
Senior Member
Thread Starter
 
dctrouant1995's Avatar
 
Join Date: Mar 2011
Location: dothan, al
Posts: 668
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 pontiac trans am
Engine: None
Transmission: None
Axle/Gears: 10 Bolt
Re: A/C/Heater not working correctly

http://www.rmsautoparts.com/ only place that has it in stock. Here is the exact page: http://www.rmsautoparts.com/proddeta...?prod=15-71408
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Ghettobird52
Tech / General Engine
15
12-29-2023 08:23 AM
mustangman65_79
Tech / General Engine
7
04-14-2017 05:37 PM
Linson
Auto Detailing and Appearance
40
08-21-2015 02:12 PM
Street Lethal
Interior
7
08-14-2015 08:25 PM
Vintageracer
Interior Parts for Sale
1
08-11-2015 08:13 PM



Quick Reply: A/C/Heater not working correctly



All times are GMT -5. The time now is 07:34 AM.