Question about 1998 Volvo S70
98 V70 air conditioner works for 10 minutes then no more cold air. Shut air off 15-20 minutes and it will blow cold air for 10 minutes and then turns warm again. System recharge didn't solve problem.
I AM AN ASE CERTIFIED VOLVO----MASTER TECH AND YOUR PROBLEM W`HICH IS COMMON ON ALL 850,S ANDS70,S THE PROBLEM IS PROBALLY AT LEAST 70% DUE TO AN AIR-FLOW RISTRICTION TO THE CONDENSOR FIRST IS SYSTEM AT FULL CHARGE LOW SIDE 25-33 PSI AND YOU AND I REPEAT ONLY CHARGE SYSTEM ON THE LOW SIDE THERE IS NO AND I REPEAT NO HIGH PRESSURE CONNECTOR AND WHAT I WOULD DO IS RUN AGOOD THICK WIRE FROM A/C COMPRESSOR AND A 30 AMP FUSE FROM A CIRCUIT LIKE THE HEATED SEATS FROM INSIDE THE CAR WITH A TOGGLE SWITCH AND A THERMOMETER IN CENTER AIR DUCT AND MANUALLY SHUT THE SYSTEM DOWN IF IT FALLS BELOW 40 DEGREES AND WATCH THE THERMOMETER EVERY 7 MINUTES AND THE MAIN PROBLEM IS THE ENGINE FAN CIRCUIT I HAVE DONE DOZENS OF THESE AND THE PROCEDURE IS WHAT I WROTE
Posted on May 04, 2009
I have a 1998 s70. The a/c fuse keeps blowing. It only happens when I start the car. Doesn't matter if the air is set on or not. Sometimes it can go for days on one fuse other days we can blow 3 in one day.
Posted on Jun 11, 2010
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Posted on Jan 02, 2017
SOURCE: 1998 Volvo V70 A/C Intermittent
I had exactly the same problem. When your engine is cold and off check the gap on your ac compressor with a feeler gauge, it should be between 0.3 and 0.5mm. If it is larger you need to re-shim which invloves undoing a nut on the end off the compressor and removing the clutch plate, then removing the appropriate shims (look like washers) then replace. The reason it blows warm after 10 minutes or so is because the ac compressor gets hot and the clutch gap gets too large for the electro-magnetic clutch to engage. Some people would say that you need a new compressor but all you need to do is a re-shim.
Posted on Mar 26, 2009
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