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Old 06-29-1999, 08:17 PM
mbdoc mbdoc is offline
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
There is a 3 pin temp sensor at the front of the cylinder head(red or green). It is for the aux. fan & overheating for the A/C system. If the switch thinks the engine is too hot then it will cycle the compressor as described. There is a 2 pin connector for the aux fan & the single pin is for the overheating a/c comp. shutoff. Try disconnecting the single pin the next time & see if a/c stays on. If that fixes it then install a new switch.