"How do you know that?"
When I pull the plug wires off of those cylinders the engine doesn't change at all but when I pull one of the other 2 it wants to die.

"You have one seriously low cylinder & 3 that are in less than new condition, but OK. My guess would be a head gasket failure on the low cylinder."

If the engine is the one that came in the runner it has 328,000 on the odometer. It is probably due for some problems. Alright I will give all of your suggestions a look and see what I come up with when I have a chance to look at it. I will report back with my findings. Thanks.