Question about 2002 Buick Rendezvous

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How do I change the a/c accumulator?

I would like the location and process of changing the accumulator.

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You will need a garage to discharge the will need a haynes repair manual to locate the accumulator .the manual will tell how much 134 refrigerant put back in system and refrigerant oil to put back in. you will need a vacuum pump to pump system down before charging it up.WARNING WHEN WORKING ON AIR CONDITIONERS WEAR SAFETY GLASSES.THE REFRIGERANT 134 CAN DAMAGES EYES .VERY HARMFUL TO INHALE.

Posted on Apr 21, 2009


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Where is the accumalator located at and what does it do

An accumulator is a physical component in an auto's air-conditioning system. It is made of metal and is cylindrical in shape.

It is similar in shape, yet larger- than the a/c system's receiver/drier; which is another important component to a car's air conditioning system.

The accumulator is connected to the evaporator outlet, on the low-pressure side of the system.

[Whereas, the receiver/drier is located on the high-pressure side of the a/c system and can be connected directly to the condenser; or between the condenser and the expansion valve; and it serves a totally different function than the accumulator. 1.) it acts as a temporary storage container for oil and refrigerant when neither are needed for system operation; hence the name, receiver. 2.) it contains a filter that can trap impurities that may be inside the A/C system; and 3.) it contains desiccant to absorb moisture (humidity) that may have gotten inside the A/C system]

Anyway, the accumulator's primary function is to store liquid refrigerant that is exiting the evaporator, to prevent it from reaching the compressor. If liquid refrigerant were to enter the compressor, it could cause damage, as the compressor is not designed to pump liquid, only vapor.

The accumulator also allows the refrigerant the time to warm up and change from a liquid to a vapor, before being drawn back into the compressor.

An accumulator also serves as a temporary storage container for oil when the oil is not needed by the system and like the drier, it too contains desiccant and a filter.

It is recommended that both be replaced in the event the system is opened to the environment during the servicing or repair of the car's a/c system

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1 Answer

Oil light on at idle

Two reasons.... oil pressure sender is bad, check this first. You will have to install a manual guage where the oil pressure sending unit is located. If you have not changed you oil regularly, you might have built up sludge in the oil pan and some of the sludge has accumulated on the oil pickup tube located inside of the oil pan.

Jan 05, 2015 | 2000 Ford Taurus

1 Answer


It is most likely that one of the transmission accumulators has failed, usually due to a broken spring in it. These are rather like little hydraulic shock absorbers which cushion the ratio changes in the trans. You would be best taking it to a trans shop. Here is a photo of accumulators lined up with their locations in a typical trans

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8_8_2012_3_42_39_am.gif8_8_2012_3_42_58_am.gifTo replace the solenoids in question remove the transmission pan,There you remove the electrical connector noting each location for reinstalation,reomve transmission filter,remvoe valve body and accumulators,(note the size and location each has different springs),Here you will have access to the solenoid,

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2008 mitsuibishi lancer es - trying to locate and change my cigarette lighter fuse. Where do I locate it and how do I identify it?

First place to look is the owner's manual. Should be a roadside emergency chapter in it with a list of fuses and usually a schematic to locate it. If worse comes to worse a local AutoZone or Advance Auto store will generally change the fuse for you if you are uncomfortable with the process.

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1 Answer

Ac accumulator

When a a/c compressor is replaced and a new or rebuilt is to be installed,all part supplier will not warranty the compressor without replacing the accumulator.So its true

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I have a 1990 VW Golf II (1.8L, 4 cyl., 8 valve engine) with 155K miles.The car will not turn over. I suspect a fuel delivery problem and changed the transfer pump (in the fuel tank). I am sure that pump...

The fuel pump, accumulator and filter are mounted in an assembly under the passenger side rear seat. The pump is held in the fuel pump box with 3 screws. The assembly bolts to the underneath side of the car with 4 13mm bolts. You'll need to disconnect the fuel lines to it and you can remove the entire assembly.

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Oil change for 1999 Volvo XC90

on right side in that black cup by oil pan

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