You have to take tension off spring loaded belt tensioner to remove clutch drive pulley, I just took the opportunity to fit a new serpentine aux belt while it was all exposed. The replacement clutch was about £50, but it is a nightmare to remove old one and fit new one, had to remove wheel arch plastic liner and take off the bumper to get decent access, and the whole clutch assembly is held on with two ginormous internal circlips down a deep recess, I had to invest in some substantial long nosed circlip pliers. If the solenoid does not click in and out check the relay sockets with a voltmeter to check if one of them has 12vdc on it, as it may simply be a blown fuse. Your location and vehicle may affect the price of AC Compressor Replacement. Labor costs are estimated between 152 and 191 while parts are priced between 616 and 663. Beyond just cost, if your compressor is no longer under warranty and the whole system is more than eight to 10 years old, it might be worth it to replace the whole system. The main factors that affect your AC compressor’s replacement or repair cost include how large your home is and the type of HVAC system you have. A new central AC system costs between 3,250 and 12,586, whereas it costs 2,5003,000 to replace your compressor. However, the cost varies depending on a few components. If you can see about 4 ohms resistance between the relay socket and an earth point on the car body ( or negative battery terminal ) the solenoid is intact, if it measures infinite resistance the coil winding may be broken or the wiring fallen off, or the thermostat may be open circuit.Ī simpler check is to bridge out the two large relay sockets with a piece of wire and see if you can hear the clutch solenoid clicking in and out, you can do this even without the engine running or the ignition turned on because the aircon relay is fed direct from live busbar via a fuse ( which is why a sticking aircon relay contact will drain your battery quick smart when the car is parked ). The average cost for a Chevrolet Silverado 1500 AC Compressor Replacement is between 768 and 854. An average whole-home air conditioner compressor replacement costs about 1,200. On one of the large sockets will be 12volts permanent feed via a fuse, the other large socket is wired down to earth via the clutch solenoid winding and a 'thermal cutout' contact - the thermal device is just a normally closed 'thermostat' that is fitted to the compressor, and the contact opens if the compressor gets too hot, opening the circuit to the solenoid. You will see 4 sockets in the fusebox when you remove the relay ( it is a single pole relay with just 2 small coil contacts and 2 large main contacts ). When I diagnosed the blown solenoid on my Civic clutch I pulled out the Aircon relay.
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