Question about 1998 Volvo S70
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
SOURCE: Air conditioner won't stay on.
Most likely it is not related to the switch. More likely is the AC system is undercharged on refrigerant. The AC system will kick in when the refrigerant pressure on the low pressure side is high enough. After the compressor runs for a few minutes, this causes the low pressure side to drop below operating range and the low psi safety switch turns off the AC system. Once it has shut off the pressures stabilizes to a level where the safety switch will let the system operate again, making you think after turning the AC switch off and on again that it might be the problem. The best way to diagnose this problem is to use a guage manifold set to monitor what the pressures in the AC system are actually operating at when this occurs.
Posted on Aug 10, 2008
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
SOURCE: 1998 Volvo V70 A/C intermittent
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
Tips for a great answer:
May 11, 2017 | AC Cars & Trucks
Jun 05, 2012 | 2005 Mercury Mountaineer
Aug 12, 2010 | 2004 Nissan XTerra
Oct 13, 2009 | Cars & Trucks
Jul 18, 2009 | 2001 Nissan Altima
Jun 24, 2009 | 2006 Chevrolet Trailblazer
Jun 04, 2009 | 1996 Toyota RAV4
Jun 01, 2009 | 2003 Kia Sedona
Aug 07, 2008 | 2003 Chevrolet S-10
53 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: