1997 Acura TL Blowing Hot Air

JERRODJBROWN

MEMBER
1997 ACURA TL
6 CYL
2WD
AUTOMATIC
225,000 MILES

My 1997 Acura TL 3.2 has been an A/C champ until last fall. It began as a sometime on/sometimes off thing, but now doesn't blow cool air at all.
Its been checked for leaks and coolant level and everything is great, but no cool air. It works well in the morning after its been in the garage or just sitting in the cool air overnight. Once its been in the sun and the interior heats up, it no longer blows cool air.
The last place I took it to suggested the module, but I changed that out, and its the same. Is there a sensor somewhere I can change out?

4 Replies

KHLOW2008

MECHANIC
41,815 POSTS

Hi JerrodJBrown,

Thank you for the donation.

When the AC is not blowing cold air,

1. Does the compressor stay engaged?
2. What are the high and low pressure readings?
3. Does the heater function correctly?

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Wednesday, April 28th, 2010 AT 4:04 PM

JERRODJBROWN

MEMBER
1 POST

Thanks for the reply. The weather has been so cool here that the car hasn't heated up inside enough for the A/C not to work. I did get it to act up again when the sun came out and baked the car for a bit.
I noticed a loud squeeking sound when the clutch engaged. That lasted for about 5 minutes and it suddenly went quiet. That coincided with the A/C not working any longer, so no the clutch disengages and it stops blowing cold air.
I don't know about the pressures. No diagnostic equipment available to me, but when it was tested when the A/C was operating correctly, there was no issue with the pressure.
The heater works great regardless of the A/C functioning.

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Monday, May 10th, 2010 AT 10:35 PM

KHLOW2008

MECHANIC
41,815 POSTS

So we have a problem with the compressor not engaging.

When problem occurs, check the compressor wire for battery voltage.
If voltage is available, the compressor clutch is faulty.
If voltage is not available, check the clutch relay for operations and power suppply.

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Tuesday, May 11th, 2010 AT 11:20 AM

MIKESHELDON

MEMBER
15 POSTS

Hi JerrodJBrown,
As said you should check for the compressor cluth as well as the coolant pump. Normally car A/C's start generating problems after 5-6 years you should add some sun reflection films to you widow glass so that it cuts nearly half the entering your car. And don't drive your car with the A/C started on a slope.

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Sunday, July 11th, 2010 AT 11:25 PM