[Symptom] After recharging my a/c process with R134, my compressor belt squeels as well as the clutch will only run After i apply direct battery power to it.
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In the event you had a leak resulting in discharge in an R12 process, then change to R134. Set up the right level of oil for each method specs. In 1993+ automobiles, a new sort of condenser and compressor pipe termination was applied demanding unique pipes that terminate in non-screwed finishes. Make sure you get alternative condensers that fall into your automobile with no want for new pipes.
Hi, i hope no one gets mad at me for publishing A different local weather Manage thread but im kind of shed and driving in Winter season without any defrost is killing me. My climate Manage appears to work fantastic but no air will arrive out from the vents. It Seems as if the motor is Doing work at all speeds Once i turn it on but pretty much no air comes from any vents. I hear anything clicking on After i turn on the Air Conditioning program, and I do know its not a clogged inside filter.
Put in The brand new valve and tighten the clamps. [RMagoo] The valve goes concerning the heater hose linked to the short pipe popping out the cylinder head along with the heater hose coming into The underside tube on the firewall connector .
You have to clear away radio, fusebox, remaining aspect Middle console panel, bracket that holds fusebox,bottom still left aspect air distributon box. Any time you can last but not least see the heater core, it seems like a hand grenade went off in your vehicle. If you are not knowledgeable about the course of action, system on a weekend. You MUST have a fantastic shop handbook. I strongly advise getting the Volvo OEM climate unit manual (see Volvo Technological Literature.)
To the condenser in the 960,it is not hard to take out the metal bolts and plates to switch them with aluminum, plastic or stainless steel bolts and nuts with plastic or aluminum shims between the steel plates and aluminum of the condenser body. That can be accomplished by using the condenser away from the vehicle from down below, or using the radiator out of the vehicle and working to the untouched condenser in place. [Editor] You will find a diagonal bracket before the condensor in many cars. If This is certainly struck or bends, it may Call the condenser tubes and lead to a leak through vibration and corrosion. Make sure it doesn't Get hold of any Section of the condenser.
[Notes from Adam/Randy:] It is hard to find the lower housing back set up [see Ideas underneath]. The condition would be that the back of that lower cover (nearest the firewall) needs to slip in excess of the evap, which has a pipe loop hanging at the bottom position. That pipe loop hangs correct where the firewall requires a bend to the cabin, plus the proximity of that pipe as well as incline of the firewall makes it nearly not possible to sneak the duvet amongst there without having breaking the plastic. Another thing that assists is to succeed in back with a person hand and push the evaporator far from the firewall a little, Considering that the housing catches on the tube on the bottom in the evaporator. I also Minimize the drain foam plug in two on the bottom and resealed it with RTV, which provides you somewhat more area. See the ideas underneath. Reinstall evaporator deal with screws. The screws are simple to strip from an excessive amount torque. It is best to watch the box When you're turning the screw. Cease turning when the duvet contacts the box (versus turning until eventually the screw feels restricted.)
PITA to try to dissassemble the air box, but you might check out eliminating the blower motor (which may be trashed If your lessen bearing has been managing in water!). Blower is held in with 4 or 5 screws, 1 electrical connector, floor direct, and there's a motor cooling air tube. Motor housing will likely be sealed with RTV to avoid any air leaks. To obtain it out, clear away panel above passenger feet, get rid of the proper side difficult panel, unplug and take away Laptop and the pc bracket. It is best to now have sufficient Place for getting it out - 8mm nut driver on flex extension is helpful. Take out the tube with the motor housing and inspect the lessen bearing - any indications of water or rust in there most likely suggests decrease bearing is trashed and motor will shortly fall short.
I ended up owning the compressor replaced in a non-Volvo A/C store. They used a distinct model Sanden compressor, however the process appears to be fine now.. three 1/four-20 (IIRC) screws to pull the pulley, I do not know very well what the spec is. [Gregg Shadduck] See for an on-line service manual. Clutch Bearing Substitute. [Robert Reagan] If you have sounds coming from your A/C compressor bearing it is possible to exchange the clutch and/or bearing with out eliminating the compressor. I was hoping to stop having to open up the system to remove the compressor after which having to exchange the receiver dryer and recharge the R134a. The tricky elements of The task were maneuvering the circlip Device across the shaft of the compressor employing a mirror to see to eliminate the circlip holding the pulley on, in addition pulling the clutch off the shaft without having a proper pulling Resource. But it surely can be achieved. An area bearing supply residence was in a position to match the bearing with a replica - it even had precisely the same number stamped on it. I pressed the bearing in to the clutch with the assistance of a little oil to the outer bearing surface. Set the clutch back again to the compressor, set up the circlips and nut, and was off into the races. Motor is way quieter now that there is no bearing noise, and I don't have to bother with a seized bearing interrupting any trips. Your complete restore cost $20. [Genaro Lopez] Sorry to rain with your parade, but I have in no way had fantastic luck with possibly changing the bearing or perhaps the clutch on A/C compressors. And I've completed quite a few listed here in Deep South Texas. I have gone to just getting a rebuilt device. This way I have only to make it happen after.. Pulling the clutch would require you to use a set of bolts to screw in and so they put stress about the compressor and thrust the clutch out. I do not know if you will have place before the compressor set up from the engine bay To achieve this. I guess you'll have to take away the radiator, and so on to create enough place, but it seems to me that you'll wind up frustrated and unsuccessful. Inquire me how I know.I however Believe your very best guess is to obtain a re made compressor
[Reaction: Warren Bain] Likely a unsuccessful resistor pack. Get rid of the decrease panel beneath the glove box, get rid of the glove box. There's two tiny covers on both aspect of your box with screws below them.
[Replies: Bob and JohnB] The flow while in the process goes from your compressor underneath superior tension for the condensor. Then by means of the receiver/dryer for the evaporator Within the cabin. From there it flows at a lower pressure (the suction aspect) back again towards the compressor. Identify , It's going to be the minimal facet. High aspect port is on the compressor, very low facet port near the hose from your firewall into the compressor on the large silver round cylindrical container (receiver/dryer). There really should be a cap covering the minimal-pressure schrader valve. Will not try this Except you've got a set of manifold gages in order to determine significant and minimal aspect pressures. It's also advisable to Have got a digital thermometer to inform the cabin vent temp.
'IF' I really need to call for servicing all over again, I'll you should definitely get ALL the fees upfront. I recommend you do a similar.
Hunt for Vacuum Failures Under the Hood Initial. [Response] 1st check the black/white vacuum check valve mounted at the best edge of the firewall underneath the hood over the cylinder head. This component here is extremely cheap. In order to Test the valve, just take out it and blow into either side Carefully. If air goes via only one way Then you definitely are wonderful and this is not the problem. If air goes by means of in both equally Instructions then there is a poor Verify valve. If it sticks or malfunctions, it brings about the a/c vent to prevent acting on acceleration. It may possibly mimic the unsuccessful servo challenge famous under. [Tip from Bob] Subsequent check the vacuum source hose underneath the hood. The vacuum hose with the A/C-heater can be found under the intake near the trans dipstick tube. Look for a little (one/eight" diameter) flexible plastic hose. It goes within the firewall near the heater hoses and winds its solution to a tee having a vacuum Check out valve connected to a bigger hose, ending on the ingestion. It is actually frequent for that hose to rub by here way of from chafing on other hoses or wiring harnesses. Once you discover the leak, Minimize the hose and splice with a little piece of rubber vacuum hose. Then Check out the passenger cabin aspect of a similar hose, that may be crushed where it exits the firewall or powering the Command head exactly where there is a Y fitting from the resource vacuum hose. Mend it with a piece of the rigid minimal spray tube that comes on aerosol cans like WD-forty. ECC-Outfitted Autos: Poor Underdash Test Valves. The compact vacuum Check out valves can fall short. A single valve feeds the ECC program and one other feeds the inside temperature sensor from the dome lamp assembly. Section amount 9134341-8, Just about every costing about $eleven. All: Try Cleansing the Air Consumption. [Idea from Larry Jacobson] Just before performing any slicing and sawing, your arm up into the air ingestion that goes up in back again of your glove box. You may be able to truly feel bits of plastic or paper or other mild foreign matter which has been sucked in to the method which is causing the flappers not to close. The vacuum motors huff and puff and hiss seeking to slam the doors within the accumulated crud. I have had To achieve this two times and equally instances uncovered a number of stuff up in there. My spouse includes a habit of clipping Discount coupons in the car. Bits of paper drop towards the footwell and some get sucked to the AC method. Tends to make a racket like baseball playing cards during the spokes with the aged Schwinn bike. All: Diagnosing the Vacuum Motors. [Inquiry:] My heat/ac will not occur out my vents, it will occur out the defrost and the ground vents, although not my normal vents. [Reaction: Dick Riess] The vacuum motors are located over the motorists side. You'll want to consider down the part underneath the dash and kick panel from the radio space. They're not conveniently replaced (if which is precisely what is Incorrect), but via a shortcut advised by Tom Irwin and obtaining some of my mods, I have done a single on my ninety one 940SE.