It is possible if it was putting too much exhaust back into the engine causing it to run lean. I'd check for any computer codes for the EGR valve. They should tell you what is wrong.
what will cause a Ford Taurus 1998 24 valve to overheat
no it can not.
start with checking thermostat
you dont. a cadillac tech does
a "t" in the hoses at the rear, top of the engine has a restrictor built into it no "valve" and no bleeder on this car.
Yes it can, since the valves are one of parts that transfer heat from combution chamber. Other thing is that exhaust valve opened to long causes exhaust system to overheat.
ware is the PVC valve 2002 deville
waterpump or radiator hose
No it does not. The only engine in the 1988 Cadillac De Ville was the 4.5 Digital fuel injected engine. The 4.5 engine is a 2 valve per cylinder overhead valve (not overhead cam) engine. It was a good engine but not in the power category as the Northstar.
Not sure what "suck a valve" means, but running an engine with no exhaust could easily cause the exhaust valves to get hot enough to melt. Exhaust valves get very hot and if you just shut off the engine with no exhaust manifold in place the cold air can cause an exhaust valve to warp, then,next time you run the engine it will not seat properly.Many people don't understand and assume that if ANY part of the exhaust system is missing you can warp a valve but that fear is just the result of failing to understand the root cause of the problem. On the other hand, a lean burning engine can overheat the valves to the point that the metal can become soft.
A bad EGR valve should not cause the engine to not start. There is most likely another problem that is causing the engine to not start.
I could be something as simple as a vacuum line off. I had overheating issues on my 1991 190E and found a vacuum check valve broken. Look near the passenger side of the engine.