Thanks for that info S-Class Guru... yeah, its a 88 300SEL... my username was from years ago... it confused alot of people.. sorry.
Yeah, we got to where the car was first before the rollback got there and dad got under the car while I turned on the switch... he said the pump is coming on when I turn on the switch, so perhaps I can rule out the pump and/or relay?
We just got the car home a few moments ago and going to eat dinner, so I guess we will head out and check it over again. Guess we need to check for spark now or hope its the filter. The car was fine until that moment, so not sure if its the filter unless something clogged in it after I pumped the gas.
Thanks again!