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It seems to happen more when the engine is hot. I can start it up cold and drive it for 30 miles with no problem. I will then let it sit for 10 minutes. When I start it back up and drive it again, it sputters and jerks every second for about 30 seconds, then drives fine for awhile, then jerks again.

I have replaced spark plug wires and plugs, timing belt. HELP!

AnswerMy van was doing the sputter thing all the time. I replaced plugs, cap, rotor, pcv valve and fuel filter (not pump). My fuel filter was on the passenger side about 2/3 back from front tucked up in a cavity.

*It sounds exactly like a fuel pump* If it feels like it's running out of gas going up hill or the battery dies... it is a bad fuel pump+filter.

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Q: Why would a 1988 GMC Vandura 3500 jerk or stall during acceleration at random times?
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