Chest pains

[Badrad1]

my 91 vert while driving starts acting like its dropped a cylinder or two, but if I turn the car on and off real quick it goes back to normal. I've changed the map sensor, tps, plugs, wires, and distibutor. Any suggestions before I pull this piece of s**t out and get another motor?

[5.0literriceeater]

if it goes back its probably not the engine. I wouldnt pull it just to solve your prob. Its definitely a sensor somewhere because it resets itself when you turn off the ignition. Guess what! if it is and you put a new engine in it, its gonna do the same thing!

Hmmm... got me thinking. Try replacing the ignition module on the distributor if you can.

[Badrad1]

thanks for your advice, please keep it coming, I just got the ignition module, so I will see if that is it tonite. Thanks again and please stay tuned, I'm sure I will need you again.

[yosemiddysam]

could be the ignition switch inside the car also. Ya never know. I had one do that to me. Instead of turning it off just wiggle the keys around. If it helps then thats it.

[91GT347]

Mine does the exact same thing. I think mine is the switch inside the car though. I noticed the key doesnt come all the way back after starting anymore too. You new distributor didnt come with a new module ?