can anyone tell me location of the AC low pressure cut-out sensor
a picture would be great ..
tried a search with no luck
many thanks
F
a picture would be great ..
tried a search with no luck
many thanks
F
V70 R 2004 ,, location of AC low pressure sensor
fewolf825
1 - 11 of 11 Posts
Nope, they don't fail. What's the low side pressure when the ac stops blowing cold? If you "think" that's the problem checking the pressure first before buying a part that might not fix it would be a good diagnostic step, rather than guess and replace.
A common solution to your possible symptom - the ac clutch wears, and when it gets hot (after driving for xx minutes in warmer weather) the clutch gap becomes too large for the magnetic field to close the clutch. What's the clutch gap? Once the engine cools down does the ac work again every time?
To solve a large clutch gap you simply remove the center clutch plate (with an appropriate puller) and remove shims to hopefully set the gap correctly. The compressor needs to be loosened to get enough room to pull the inner clutch plate off - but the whole job can take less than an hour.
Joined
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9 Posts
This car is new to me, and i find it difficult to get to various partss due to the compactness of the engine compartment
thanks for the info,, the clutch gap is a good place to start sine you both say the sensor is not the likely problem
thanks, i will stick my nose in there once again
thanks for the info,, the clutch gap is a good place to start sine you both say the sensor is not the likely problem
thanks, i will stick my nose in there once again
The pic below shows the AC shims, black arrow. It is almost impossible to remove the front half of the AC clutch to remove some shims. Clutch gap will be 0.012 to 0.014 thousands for a good clutch gap. A worn shutting off clutch gap will be 0.024 thousands or more. I use a 3ft long thin blade screwdriver, from the top, jam it in behind each of the 3 curved springs in the red circle. Twist the springs to close up the gap, it does not take much of a twist to close up the gap. If possible do this for each curved spring side, 6x's. Use a strong light, it will take some practice to get in behind the spring. The clutch face will want to roll around. The other pics show the evap temp sensor #15. It can fail and not shut off the AC compressor freezing up the evap core into a solid block of ice. The iced up AC pipe pic was my 2002 XC70. Driving up I-95 for a 6 hr drive, the AC decided to not turn off and freezing up. 100 degree day, 30 minutes with AC, turn AC off, 30 min W/O AC or pull off at rest stops and let it thaw out. #15 sensor fixed it. The evap sensor is beside the gas pedal area.
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This 24" one should work. From Amazon or search for gearwrench 80068h
Blade Length : 24
ASME Specification : B107.15
Blade Diameter : 0.425
Blade Type : Round
Tip Thickness : 0.040 in
Handle Material : Dual Material
Tip Finish : Black Oxide
Tip Style : Slotted
Overall Length : 24
Size : 1/4 in
1 - 11 of 11 Posts
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