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A/C loss under acceleration 700 1991

posted by  rwturbo on  Wed Jul 9 14:19 CST 2003
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well more than likely its the vaccum bellow in the heater box seen it and fix many of them it is on passenger side remove knee cover and look for the vacume bellow with 2 lines on it disconect them one by one and check to see iff they will hold vaccum using a peice of hose and your mouth. normally the one with the yellow line gives up.It is a pain to replace the correct way but you can mutalate the box but do it right all this only after checking the check valve like said before. the part normally runs about 80 usd. good luck and I will hope its just your check valve but not likely.






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