a/c compressor!

[REDHOSS02]

So my a/c quit blowing cold. I popped the hood to check the clutch and it was not ingaged. I pulled the relay out and replaced with a new one. Checked all the sensors, all good. Pulled the dash panel out and replaced with one from our work truck that i know works and still nothing. Jumped the two ports where the relay goes and walla clutch engaged. tell me something that makes sense!

 

[maxaholic]

Maybe the control panel.

 

[REDHOSS02]

when you say control panel are you talking about the climate control in the dash with hot/cold? Thats what i replaced and still nothing. someone told me that there is a electric control behind the dash that could be the problem but i dont know how the wiring goes!

 

[wdino73]

You may have a freon leak, if they are low on freon they won't turn on.

 

[maxaholic]

Sorry I must have skipped that part.

 

[REDHOSS02]

Not low that's the first thing I checked

 

[jlawles2]

Could be the low pressure cut out switch. Seen that one before also. It is usually on the drier on the firewall. Pretty easy to change as they typically have a schrader valve to prevent discharge when changing, but be careful when removing just incase.

 

[Darius6t9]

Sure it might not be the blend door actuator? Just throwing an idea out there.

 

[madmatt]

cycling switch on the accumulator. notoriously bad on older body style trucks like yours.

 

[REDHOSS02]

i had a guy check it for me and his scanner said that the pressures are off but when he hooked up the guages everything was fine! so i think you might be right madmatt on that cycling switch on the accumulator! O'reilly here i come. thanks for the help guys!

 

[REDHOSS02]

now im gonna have to have someone replace it so they can refill the freon! DAMNIT!

 

[wdino73]

just some food for thought, I would have them replace the fitting on the high, an low sides, an the expansion valve, the parts are like 12 bucks an while u have the system recovered might as well do it, mine gets so cold u could hang meat in it. LOL

 

[madmatt]

now im gonna have to have someone replace it so they can refill the freon! DAMNIT!

There's a valve behind it so it can be changed without losing refrigerant. I have had some leak though while i was changing them.

 

[REDHOSS02]

well now that i think about it, that switch on the accumulator your talking about. I removed the plug on it and jumped the wires and still nothing. the only other one i can think of would be the sensor on the line right above the compressor! one switch was $19.99 i need to find out where i can get all of this for $12.