Are there any problems with the air conditioning in a Volvo?
The Volvo Repair Database has a section dedicated to this stuff: AC and other climate control problems/fixes. Also see MVS posts with the Volvo air conditioning tag. These do overlap.
Why does my Volvo air conditioner make a hissing noise?
The manual heater control assembly supplies vacuum to the under hood heater valve to shut off coolant flow to the heater core in the cold position of the control lever. The vacuum connection had come off the heater valve, and the free flow of air caused the hissing sound at the heater control.
How to Shim the AC clutch on a Volvo S60?
Here’s how to shim the AC clutch on an S60. Here’s how to shim the AC clutch on an 850, V70/XC70 up to 2000, S70, or C70. Do not use the high pressure port that is right up front above the radiator. That’s the high side for shops with pro AC refill equipment. Instead, move a couple items out of the way and use the AC low port.
Where is the low pressure line on a Volvo 850?
It is located on the passenger side of the engine compartment near the radiator and is marked with a “ 70NM ” [ Volvo 850 Low Pressure Line] The best photo documentation on how to get to the Volvo 850, S70 and V70 evaporator, period: Changing an Evaporator Core – in Pictures
How to fix intermittent a / C in a Volvo?
Once the AC clutch obviously disengages itself and begins blowing warm air, turn off the AC with the button on the center console. Give the clutch a few minutes to cool down before turning the AC back on. If the clutch has cooled down enough, it should then reengage without any issues.
Where does the air conditioner recharge on a Volvo?
Per VADIS, the A/C system should be recharged on the high side. Finding this to be not only odd, but dangerous, I recharged my system on the low side (port is underneath the power steering reservoir).
How to recharge a Volvo S80 AC compressor?
[ Recharge Volvo S80 AC] A good forum thread on compressor cycling, recharging and pressure… [ Compressor cycling, recharging and pressure] Another good How To on recharging the refrigerant yourself. Cool Zone #390 complete recharge kit” I bought from autozone $48 bucks, it has 3 cans of refrigerant they each have the charge…
Why does my Volvo engine stall when the a / C is on?
If the A/C compressor is binding up, possibly due to a lack of lubrication, internal wear or an over-charged A/C system (too much refrigerant), it may be lugging down the engine when it is engaged. If the problem only occurs when the A/C is on, there is an issue with the compressor.
What happens when the fuel pump fails in a Volvo?
If the engine has spark, it may have died due to a loss of fuel pressure. When fuel pumps fail, they usually just quit with little or no warning. The engine usually won’t restart and the vehicle has to be towed in for repairs.
How to diagnose electrical problems in a Volvo?
[Editor] To assist in diagnosing and repairing electrical problems, consider acquiring: Volvo OEM Wiring Diagram Manual. This will be the best investment in manualsyou ever made. Silicone Dielectric Grease. This protects all connectors (save low voltage circuits such as the oxygen sensor) from corrosion.
What are the circuits and relays on a Volvo?
Electrical circuits and relays on the Volvo 700, 900 and 90 series cars The Volvo Owners’ Club For all models and ages of Volvo cars VOC Home | FAQ Home Circuits and Relays Basic Information: Electrical Diagnostic Supplies; Soldering Basics Wiring Diagrams Website Electrical Diagnosis Tips Fuse Locations Relay Basics Relay Locations
How to Shim the clutch on a Volvo 850?
Here’s how to shim the AC clutch on an 850, V70/XC70 up to 2000, S70, or C70. Do not use the high pressure port that is right up front above the radiator. That’s the high side for shops with pro AC refill equipment. Instead, move a couple items out of the way and use the AC low port.
https://www.youtube.com/watch?v=ZZs0uURnEN8
What to do when your car’s AC starts blowing warm air?
Once the AC clutch obviously disengages itself and begins blowing warm air, turn off the AC with the button on the center console. Give the clutch a few minutes to cool down before turning the AC back on.
Why does my air conditioner keep blowing cold air?
As we approach the summer months, air conditioner use becomes a daily ritual; discovering that the AC functions intermittently could be devastating. When an air conditioner begins to fail, the most common thought is that the AC needs a refrigerant recharge. However, low refrigerant is not the cause for an AC which intermittently blows cold air.
What to do if your Volvo S70 has a compressor problem?
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When do you close the water valve on a Volvo?
[Response] Vacuum to close the water valve is only applied in max AC mode or when the MCC temperature selector is fully cold. This varies according to the type of control system in the car (MCC, ACC, ECC) and the Volvo OEM service manual should be consulted for details of vacuum signals.
Why does my Volvo 740 make a hissing sound?
Leaking Sound from Heater Controls. [John Sargent] One of my 740s made a hissing sound from under the dash in the area of the heater temperature control lever. The manual heater control assembly supplies vacuum to the under hood heater valve to shut off coolant flow to the heater core in the cold position of the control lever.
Where is the vacuum valve on a 1990 Volvo?
Vacuum Check Valve Failures. [Inquiry] I have a 1990 760T and the H/AC is losing vacuum during low vacuum and during boost from the turbo. There is a tee above the intake that has two black & white fitting that connect to two smaller hoses that go to the fire wall.
Are there any common problems with the Volvo V70?
This entry was posted in Cars and tagged common problems, Volvo V70 on 22 February, 2018 by Justin Smith. As the man at the helm of BreakerLink, it is no surprise that its Director, Justin Smith, has always had a keen interest in cars, bikes and most things wheeled.
Why is my air conditioner working backwards on my Volvo?
The heater water valvehas a blockage restricting flow and may be in need of replacement; You have a vacuum leak which causes the heat vent control to work improperly; Your firewall-side heater water valve was installed backwards; The arrow on the valve points to towards the firewall inlet, not back towards the engine.
How long does it take for Volvo A / C to warm up?
In this forum you’ll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos. The a/c starts off cold and within 5-10 minutes the air is coming out luke warm.
What are the symptoms of a Volvo transmission problem?
Volvo transmission problem symptoms vary. A complete list of possible symptoms includes: Hard shifting between gears or hard downshifts. Volvo does not move when placed in Drive or Reverse. The engine revs up before going into the next gear. Transmission stuck in gear. Common fault codes are TCM-002A, TCM-002B, P0733, P0734.
Why does my Volvo not start after an accident?
Volvo won’t start after an accident. Your Volvo may not start after an accident. For safety reasons, Volvo designs cars to cut power, fuel and prevent engine start when the car has been involved in an accident. For more help, read this article.
Why is my 2001 Volvo V70 blowing hot air?
Video Description When the air conditioner in your 2001 Volvo V70 starts blowing hot air, you likely have a freon leak. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system.
What to do if your Volvo V70 has a leak?
When the air conditioner in your 2001 Volvo V70 starts blowing hot air, you likely have a freon leak. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. Most refrigerants include a leak sealer that will seal small leaks in addition to filling the R134a refrigerant.
Can you add refrigerant to a Volvo V70?
Most refrigerants include a leak sealer that will seal small leaks in addition to filling the R134a refrigerant. The A/C system in your V70 consists of a compressor that is belt-driven, an evaporator and freon. If there is a problem with your compressor or evaporator, adding freon will not restore cooling.
When do you need a Volvo AC heater?
When it’s -15 degrees below zero (celcius) you really need a working heater. At the moment the heater supplies little to no heat at all. The AC seems to work normally supplying cold air and removing humidity.
How to diagnose a Volvo heater problem?
The heater core is much smaller than the engine-cooling radiator in front of the engine. read on to learn more about how to replace a faulty heater core in a Volvo. First diagnose the problem: is the heater core the prime suspect?
What was the first generation of Volvo V70?
The first generation V70 was an improved development on the basis of the Volvo 850 estate. Its overall design became more rounded doing away with the 850’s square edges. Among the many changes were a completely revised front end, fully painted bumpers and side trim and clear indicator lenses all around.
Why is my transmission not working on my Volvo V70?
Over the previous two months, it gradually become more noticeable. After the 60,000 mile service & transmission fluid replacement, the faint noise became a loud clunk when the transmission shifted. The transmission would also at times not engage when accelerating after a stop or a slow down.
Is there a problem with my Volvo XC70?
Recently had a similar problem with our 2001 xc70 after the 60,000 mile service, only when coming to s stop . It may not be a transmission problem. It may be your electorinc throttle. Go to vexedvolvo.org Our 1999 XC70 did that initially, the dealer supposedly changed the trans. fluid and it seemed to have helped, that was 30,000 miles ago.
Is there a warranty on a Volvo V70?
It seems Volvo has extended the warranty on these sensors to 100,000 miles in lieu of issuing a recall. The dealer also says it could be a software upgrade issue. To me, it seems like a mechanical problem with the transmission. It is going into the shop tomorrow. I’ll let you know how it turns out. I too own a 2000 XC with 90,000 miles on it.