1996 Chevy Astro engine sputters

1996 CHEVROLET ASTRO
265,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MOSHMONKEY
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  • 1 POST
My Van starts great but when accelerating it coughs/sputters a tiny bit, more so when it is cold. When it warms up it's not as bad. Also when hitting the pedal hard it does not sputter. I have tuned it up oil changed it and replaced the fuel filter. There is no engine light on but I am thinking it could possibly be a sensor not connected to the engine light. What are your thoughts??

Thanx,

Chris
Mar 27, 2010 at 2:04 PM
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MERLIN2021
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  • 17,250 POSTS
Possibly the ECT, it's screwed into the drivers side head, above 1&2 cylinder, or 3&4 cylinder. Or the TPS(throttle position) or a dirty MAF at the air filter box. Last, low fuel pressure, or vacuum leak. BTW, when was your last tune up?
Mar 27, 2010 at 2:10 PM