If 1993 suburban rear ac not cold how can check the expansion valve?
There is not an expansion valve on a 1993 Surburban. There is an orfice tube (white) in the high side line of the evaporator.
YOU MUST REMOVE THE EVAPERATOR CASE FROM INSIDE THE TRUCK ON THE PASSENGER SIDE AND YOU WILL SEE THE EXPANSION VALVE.
The expansion valve is located under the dash. It is within the plasitc housing (box shaped) with the condensor coil. The plastic housing can be removed after taking out the glove box, metal cross bar, and disconnectng the wire harness that runs across the plastic housing.
Its part of the liquid line on a Grand Cherokee and on a regular Cherokee you have an expansion valve located on the passengers side firewall..................
The PCV valve on a 1993 F150 is located in the top of the valve cover. it is a plug in type, and is easily replaceable.
Where is the A/C expansion valve on the 1994 Lexus Es300
The factory version uses an Orifice tube. Located inside a short metal line right and the evaporator inlet where the liquid line attaches. It can be a little tough to identify because it just looks like a short line adaptor with fittings on either end. The Dealer air version should be similar other than it uses the proper expansion valve and will be quite visible. The Four Seasons on line catalog has photos.
pass.side valve cover at the rear
5.0L-The valve is located on top of the block by the firewall 2.3L-The valve is mounted inline with the breather hose
its the hose coming off of the valve cover that's the egr valve