How do you install an egr valve on a 1997 cadillac deville?

Answer 1

I have a 95 Eldorado and recently had an EGR valve problem. After removing the plastic "Northstar" cover, you will be able to see the intake manifold, fuel rail, and alloof the injectors. the EGR valve is located right next to the fuel rail, before any of the injectors. If your car is 1995 or newer the fuel rail has a metal flange that is placed over one of the bolts holding the valve in plae. If you are doing this yourself it is important to remember to remove the injectors from the manifold, and not the fuel rail, otherwise you may run into problems.

After removing the fuel rail just enough to get the flange off from the top of the EGR valve bolt, unplug, and unbolt the valve. Remember that there is a special gasket for this part, and to make sure not to break or lose it.

After the valve is removed you will see 2 holes in the bottom of it. one open, and one with a screw looking pin in it, that is spring loaded. Carefully take a screwdriver, and compress the pin. If it sticks, theres your problem, and that "Check Engine" light is caused by that. Alhough its not entirely recommended, i used carburater, and fuel enjector cleaned in the valve to free up the pin. An important thing to remember is that if you do this DO NOT hold the vlave upside down. These cleaners are corrosive, and will ruin the sensors in the vlave. Lay it sideways to clean.

After doing this, try the responsiveness of the vlave with a screwdriver again. If it functions proberly, you can reinstall it. If not, you must by a new part.

I cleaned my EGR valve last weekend, and its worked great so far. Not to mention i saved about 450 dollars by reusing the part, and doing it myself. Another win for do it yourselfers!