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Yeah, I believe your right. My next step will be as he said, to check psi and then go from there. Thanks again.

Thanks for all your help. I did change the fuel pump along with a new filter sock. This resolved the problem for about 1 hour, then the sputtering has started again. Not nearly as bad, but still sputtering.

Thanks for the info. Does this sound like a fuel pump issue to you?

I just aquired a 1990 C4 and it ran fine for the first few days. Suddenly, one evening while driving it began sputtering and every time I would press the gas it would backfire. I changed the fuel filter but it still seems like the fuel pump is going bad. While the fuel filter was off, I...