Category Archive: General A/C

GM Class A Allegro Motor

Car Information:
GM
Year: 1991
Engine Size: 460
Trans: Automatic

Issue / Question:
This is a class A Allegro motor that has 134a a/c system in it. It has not be used in years and is very low on freon. I want to change the dryer, vacuum it down and check for leaks. After all this, what else do I have to prior to using ice32? Thank you

Answer:
Hey you don’t want to go back with 134, we got the alternative R-12 refrigerant called FR-12 and it works a lot better then 134, then we could install the ICE.

For professional auto repair & services in Orlando you can call our shop today at 407-629-2661.

Magic Mechanic
1432 Lee Road OrlandoFL32804 USA 
 • (407) 298-7447

AC Blowing Hot Air

Car Information:
Cadillac/Escalade
Year: 2005
Engine Size: V8
Trans: Automatic

Issue / Question:
The AC often blows hot when it should be cold, cold when it should be hot, and sometimes cold on the drivers side and hot on the passenger side. The DVD players in the headrests also have no power.

Answer:
We need to check the refrigerant level first. If it’s a little low only one side of the evaporator will get cold, then check the blend door motor with our tech 2 scan system. Sometimes, we have to re calibrate the motor.

We will need to find out where the power feed is for the TV and check for a blown fuse.

For professional auto repair & services in Orlando you can call our shop today at 407-629-2661.

AC Not Working

Car Information:
Ford/F150
Year: 2004
Engine Size: 5.6
Trans: Automatic

Issue / Question:
Over the past year the AC would not work. If I hit the dashoboard, the AC would start blowing. This troubleshooting doesn’t work anymore. Do you think I have a loose connection or do I have a bad switch on my AC/climate control?

Answer:
The bottom line is something has been making a bad connection. To diagnose it correctly, one will need to check for voltage out of the controller to the fan control module and then from the fan control module to the fan motor.

For professional auto repair & services in Orlando you can call our shop today at 407-629-2661.

A/C Not Cooling

Car Information:
Kia/Sedona
Year: 2004
Engine Size:
Trans: Automatic

Issue / Question:
The AC isn’t cooling like I feel that it should. It’s still cool but not really cold. The compressor was replaced about three years ago by the dealer and the freon level on the little gauge I have shows that it is a little bit low but still in the “green” area of the gauge. I was thinking of putting the ICE 32 in it that you advertise. Would it work ok in my car and how much would it cost?

Answer:
If the A/C pressures are ok, we generally get a 10 degree drop in temperatures by adding the ICE-32. In many, cases when a new compressor is installed, if the system was not flushed properly there may be too much oil in the system which restricts the capacity of the evaporator and reduces the amount of cool air you can expect. Adding ICE-32 will pull the oil out of the evaporator and keep it in the compressor where it belongs.

The price for ICE 32 is $74.95.

For professional auto repair & services in Orlando you can call our shop today at 407-629-2661.

A/C not Blowing Air

Car Information:
Mercury/Sable
Year: 2001
Engine Size: 3.0
Trans: Automatic

Issue / Question:
I left the car in the driveway during a rainstorm and found that the passenger-side front floor was wet and that the A/C, which is electronically controlled, will not blow air. I purchased the car in 2003 and had a problem with the A/C (blew hot air) after visiting a carwash. $800 later I had the blend door replaced. Any idea as to what is wrong?

Answer:
I would like to check the in-car temp sensor. If there’s water standing in the evap case, this could cause the problem. Let us know if you would like to swing by and let us look at it real quick.

For professional auto repair & services in Orlando you can call our shop today at 407-629-2661.

Broken AC Belt

Car Information:
Chevy/Suburban
Year: 2001
Engine Size: 5.3
Trans: manual 

Issue / Question:
My a/c belt broke. We replaced it with a belt from an autopart store with no problem. We test drove the vehicle and discovered a aweful noise which was the tensioner vibrating violently. We then replaced it 2 times; one time with an aftermarket one and it also vibrated violently. We then bought a gm tensioner and the problem continued. We have been told the compressor is going bad. It still blows cold air. Thank you for the help! 

Answer:
If you don’t have the problem with the A/C off it may very well be that the compressor is requiring excessive torque to turn causing the problem, this would mean the compressor is seizing internally and will need replacement.

For professional auto repair & services in Orlando you can call our shop today at 407-629-2661.

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