Having problems with your 2004 Acura TL ?

How do I know if i need to replace my expansion valve

\015 My airconditioning stopped blowing cold air, so I added freon, and that did not solve the problem, a friend suggested it could be the expansion valve, I am a complete novice, so I have no idea where to even start\015 Posted / edited by AnonymousUser on : 23-07-2018

Answers :

Here are directions:

Recover the refrigerant from the refrigerant system
Disconnect and isolate the battery negative cable.
Remove the air cleaner housing
Disconnect the drain tube from the wiper module drain on the right side of the engine compartment.
Disconnect the wire harness connector from the A/C pressure transducer located on the rear section of the front liquid line

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Remove the nut that secures the suction and liquid line to the stud on the expansion valve.
Disconnect the suction line from the expansion valve.
Remove the seal from the suction line fitting and discard.
Remove the bolt that secures the rear section of the liquid line to the top of the filter-drier.
Disconnect the rear section of the liquid line from the filter-drier and the expansion valve.
Remove the seals from the liquid line fittings and discard.
Install plugs in, or tape over the opened liquid and suction line fittings, the filter-drier outlet port and both expansion valve ports.
Disconnect the wire harness connector from the evaporator temperature sensor on the top of the expansion valve.
Remove the two bolts that secure the expansion valve to the evaporator tube tapping plate.
Remove the expansion valve from the evaporator tube tapping plate.
Remove the seals from the evaporator inlet and outlet tube fittings and discard.
Install plugs in, or tape over the opened evaporator inlet and outlet tube fittings and both expansion valve ports.
If necessary, remove the evaporator temperature sensor retainer and the temperature sensor from the expansion valve.


This means that the suction line pulls off, but before the liquid line can come off, it has to be disconnected and removed from the receiver/drier. It does take some force to pull them off due to the o-rings

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Repair Help & Product Troubleshooting for 2004 Acura TL

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