1987 GTA Digital Air Conditioning and Heater Controls
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From: Waterloo, Iowa
Car: 1987 Pontiac Trans AM GTA
Engine: 5.7 LTR
Transmission: Automatic
1987 GTA Digital Air Conditioning and Heater Controls
The fan speeds are not working correctly. I can only get one speed out of it. Sometimes I can get all the speeds. What could be causing this? Is there a resistor pack or relay that has to be changed? This is for a 87 GTA that has a digital dash.
Last edited by Steveh4263; Oct 31, 2011 at 10:52 AM.
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From: Arlington, Tx
Car: 91 Camaro RS
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Re: 1987 GTA Digital Air Conditioning and Heater Controls
not sure if theres a difference with the digital dash, but on the blower housing under the hood, there should be a resistor pack. one for low, one for med low, and one for med high. they have a tendency to corrode and stop working.
Thread Starter
Joined: Jun 2008
Posts: 160
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From: Waterloo, Iowa
Car: 1987 Pontiac Trans AM GTA
Engine: 5.7 LTR
Transmission: Automatic
Re: 1987 GTA Digital Air Conditioning and Heater Controls
Does anyone with a GTA that has the digital dash know the location of the resistor pack for the heater controls?
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From: Arlington, Tx
Car: 91 Camaro RS
Engine: empty bay (for now)
Transmission: Built T-56
Axle/Gears: 3.42 stock posi disc
Re: 1987 GTA Digital Air Conditioning and Heater Controls
im guessing since the boxes under the hood are the same, itll be in the same spot. its the 4 wire plug on the top of the box. pull the plug, then unbolt the resistor pack
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Re: 1987 GTA Digital Air Conditioning and Heater Controls
Thread Starter
Joined: Jun 2008
Posts: 160
Likes: 0
From: Waterloo, Iowa
Car: 1987 Pontiac Trans AM GTA
Engine: 5.7 LTR
Transmission: Automatic
Supreme Member
iTrader: (1)
Joined: Mar 2007
Posts: 3,525
Likes: 7
From: Arlington, Tx
Car: 91 Camaro RS
Engine: empty bay (for now)
Transmission: Built T-56
Axle/Gears: 3.42 stock posi disc
Re: 1987 GTA Digital Air Conditioning and Heater Controls
there you go...this isnt my car btw, just found on an image search
Last edited by travis401; Nov 1, 2011 at 01:44 PM.
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Thread Starter
Joined: Jun 2008
Posts: 160
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From: Waterloo, Iowa
Car: 1987 Pontiac Trans AM GTA
Engine: 5.7 LTR
Transmission: Automatic
Re: 1987 GTA Digital Air Conditioning and Heater Controls
Replaced the resistor pack under the hood and I still only get one speed. High speed and no other speeds. I tried two different digital heater controls and the results from both were the same. I could only get the blower motor to run at high speed and no other speeds would work. Sometimes the high speed wouldn't work as well. What could be causing this?
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Car: LOWERED ♦ CRIMSON METALFLAKE
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Speed Demon
Using a voltmeter or test light (the type for testing for voltage, not a continuity tester) probe the red wire at the relay assembly, with the key in the RUN position.
When you have the selector on any of the LO speeds is there power on that red wire?
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If Your Communications Antenna Is Not Shaking At Idle, Your Cam Is Too Mild
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When you have the selector on any of the LO speeds is there power on that red wire?
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
If Your Communications Antenna Is Not Shaking At Idle, Your Cam Is Too Mild
.
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