A/C Issues STILL ONGOING
I continue to have issues with the A/C unit in my 2004 Chevy Silverado 2500HD. This has been an ongoing issue for several years and numerous trips to the repair shop. Everytime, someone thinks they ...
Forum Discussion
This is a common problem and often misdiagnosed as low coolant.
The symptoms you describe are typical of a worn A/C clutch (NOT FAN CLUTCH).
Someone else had mentioned this but I will elaborate a little on this..
Simply put, the A/C clutch works by using a electro magnet to create a magnetic field. This field "pulls" or draws the clutch together. When this happens the compressor shaft turns with the pulley.
In order to reliably pull or draw the clutch together there is a MAX distance allowed. Typically the clutch material wears down to the point the gap enlarges past the point of max distance.
Not all is lost, the clutch gap MAY be restorable. There may be a set of "shims" that can be removed.
Worst case is the clutch simply needs replaced...
Please take a look at the link below, although it is about repairing a Ford A/C clutch you will most likely find this info of great help..
SPRINGERPOP A/C AIR GAP REPAIR
First thing to do is MEASURE the AIR GAP of the clutch instead of reaching for a can of freon...
If air gap is correct then you need to trouble shoot the pressure switches, there can be several of these, one placed on the high pressure line and one on the low pressure line.
Additionally a clog in the system can cause issues but that SHOULD HAVE BEEN DETECTED if the A/C repairman used a set of gauges..
The symptoms you describe are typical of a worn A/C clutch (NOT FAN CLUTCH).
Someone else had mentioned this but I will elaborate a little on this..
Simply put, the A/C clutch works by using a electro magnet to create a magnetic field. This field "pulls" or draws the clutch together. When this happens the compressor shaft turns with the pulley.
In order to reliably pull or draw the clutch together there is a MAX distance allowed. Typically the clutch material wears down to the point the gap enlarges past the point of max distance.
Not all is lost, the clutch gap MAY be restorable. There may be a set of "shims" that can be removed.
Worst case is the clutch simply needs replaced...
Please take a look at the link below, although it is about repairing a Ford A/C clutch you will most likely find this info of great help..
SPRINGERPOP A/C AIR GAP REPAIR
First thing to do is MEASURE the AIR GAP of the clutch instead of reaching for a can of freon...
If air gap is correct then you need to trouble shoot the pressure switches, there can be several of these, one placed on the high pressure line and one on the low pressure line.
Additionally a clog in the system can cause issues but that SHOULD HAVE BEEN DETECTED if the A/C repairman used a set of gauges..
