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1998 Chevy Astro Misfire #1 cylinder
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sara cheyenne
New User
Feb 26, 2011, 8:19 PM
Post #1 of 2
(2460 views)
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1998 Chevy Astro Misfire #1 cylinder
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Engine ran rough then was fine. Did it again and I pulled #1 wire from distributer cap and engine ran the same. Replaced wires, plugs, rotor and cap was fine for 1000miles. Same problem with #1 cylinder. Spark is good. Pulled plug and gas dripped off. Also gas coming out of exhaust. Repalced ignition coil, no change. (also replaced thermostat) All done on mechanic's advice. Told maybe map sensor? Easy fix. Question is why only #1 cylinder? Maybe vacum leak. Any ideas?
4.3L, 1998 Chev Astro, 2 WD,Replaced catalytic converter in the fall.
(This post was edited by sara cheyenne on Feb 26, 2011, 8:23 PM)
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Hammer Time
Ultimate Carjunky
/ Moderator
Feb 26, 2011, 8:29 PM
Post #2 of 2
(2452 views)
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Re: 1998 Chevy Astro Misfire #1 cylinder
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I think your next move should be a complete compression test then check the fuel pressure and see if the rest pressure holds when it's shut off.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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