95 Astro van misfire on 2,4, and 6 cylinder
10

Asked by tjbyrge Feb 04, 2018 at 04:09 PM about the 1995 Chevrolet Astro Cargo Extended RWD

Question type: Maintenance & Repair

The engine misfires on 2 4 and 6 cylinders have
replaced all spark plugs or wires rotor button cap
was told it could be c have replaced all spark plugs
or wires rotor button cap was told it could be the
coils but I'm not for sure and yes I did use GM
parts for replacement I would like to kind of know
where to start before I throw any more money and
time down into this vehicle

5 Answers
27,570

oilyspill answered 6 years ago

Did you visually check for spark at plugs before replacing, anything? What about fuel? Some of these spider fuel systems are noted for problems, where applicable. You need fuel--spark--compression. My info for fuel pressure says 55--61 psi, so if somewhere in the middle should be fine.

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tjbyrge answered 6 years ago

Sorry I just read my post back I was told that it could be the coil my phone auto corrected and compression is good on all cylinders. plugs flood out and turn blackish and you can smell the gas on them . I can even clean them and it runs good for about another week then they are fouled out again

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tjbyrge answered 6 years ago

Also gets harder to start I'm assuming that it's the plugs fouling causing that as well

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