Where ls the expanision valve in a 1992 buick skylark?

SOURCE: I have a 96 Buick skylark. I just took the egr

That sludge. Isnt that why you are cleaning it? That passage should have a vacuum on it when the engine is running, you may need a stiff wire and carb cleaner to clean it

SOURCE: removal of heater core 1992 buick skylark

You locate the heater core by following the heater hoses in the engine compartment. These hoses need to be disconnected. Then, working inside the passenger compartment, take off all of the control panel. You'll see screws underneath if you lie on your back. The only trick is to pop out the vent louvers -- just pop them out with a screw driver. There are screws behind them. Take out the glove box. Take off the heater outlet duct and the heater core cover. Pull the heater core straight back to avoid breaking the drain tube. Remove some clamps and that's it.

SOURCE: water pump removal 1992 buick skylark

Drain the coolant first. Use an 18 mm box wrench on the serpentine belt tensioner to relieve tension and take off the belt. (On some models, you might need to remove a motor mount or loosen and push aside the power steering pump.) Now you are ready to remove all the bolts. Remove the pump. Scrape away all remnants of the old gasket. If some of the bolts are corroded, you had better replace them or they might break next time you change the pump. Apply gasket sealer to the new gasket. I always apply some gasket sealer near the head on the bolts to protect them from water, but I don't know if it does any good. Screw it all back on; there are some mating posts so you get it aligned right. Turn every bolt a little at a time in turn or you will make one side of the gasket thinner than the other. Rifill the radiator with new coolant. You should be good to go. But check for leaks.

Here is a series of videos, which I hope works similar to your car:

http://www.youtube.com/watch?v=0gwgDVZPzzg&feature=related


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SOURCE: where is the pcv valve located on a 1993 buick skylark with a 3.3

check the front valve cover if not there check the backside one

SOURCE: where is the a/c expansion valve located on a 1994

No expansion valve, only orfic tube, sit in connection to evaporator.