A/C Clutch problem.

From : gkru10

Q: hello my a/c clutch will not engage. i checked the fuses high & low pressure switches and checked the freon level. i checked the relay that is in the distribution center also. they all seemed to check out fine. when i jump the clutch it comes on and i can feel cool air come from the vents. there are two sensors in line but i do not know where they are on the van. one is a temp sensor and the other has to do with the power train. it said in the wiring diagram. about two weeks ago the a/c clutch fuse blew out and the blower fan did not work. i replaced the fuse and the fan works fine. whatever blew that fuse is probably what im looking for. can you help me find the problem so i can get the air to work thanks george .

Replies:

From : tbone

some specs on the vehicle may help a little like year model... -- if at first you dont succeed youre not cut out for skydiving hello my a/c clutch will not engage. i checked the fuses high & low pressure switches and checked the freon level. i checked the relay that is in the distribution center also. they all seemed to check out fine. when i jump the clutch it comes on and i can feel cool air come from the vents. there are two sensors in line but i do not know where they are on the van. one is a temp sensor and the other has to do with the power train. it said in the wiring diagram. about two weeks ago the a/c clutch fuse blew out and the blower fan did not work. i replaced the fuse and the fan works fine. whatever blew that fuse is probably what im looking for. can you help me find the problem so i can get the air to work thanks george .

From : cbhvac stephen

hello my a/c clutch will not engage. i checked the fuses high & low pressure switches and checked the freon level. i checked the relay that is in the distribution center also. they all seemed to check out fine. when i jump the clutch it comes on and i can feel cool air come from the vents. there are two sensors in line but i do not know where they are on the van. one is a temp sensor and the other has to do with the power train. it said in the wiring diagram. about two weeks ago the a/c clutch fuse blew out and the blower fan did not work. i replaced the fuse and the fan works fine. whatever blew that fuse is probably what im looking for. can you help me find the problem so i can get the air to work thanks george first of all you cant check the refrigerant level without the unit running...and it does not use freon...automotive terms that means r12..ah..hell..that brings up #2... what in hell are you working on it helps to know what model year etc before we start spewing advice on things we cant see....my crystal ball is foggy this morning... chances are if i had to guess with such little information you are going to find out that you have a short at somepoint..duh right and the wires not allowing current to flow to energize the clutch..you are going to have to do a little diagnostic work to locate it. if on the other hand jumping the low pressure switch makes the clutch engage then you are probably going to be surprised to know you are low on refrigerant. .