1995 Chevy Astro carbon like blockage and stalling

Tiny
JOEL LOUIS
  • MEMBER
  • 1995 CHEVROLET ASTRO
Engine Performance problem
1995 Chevy Astro All Wheel Drive Automatic

My van seems to be "carb-ed up". It's running really rough, seems like potential spark plug misfiring. It has a strong gassy/exhaust odor and generally stalls at any time when I am stopping at a stoplight. It starts fine after stalling. In the past a long highway drive will straighten out the "carb-ing" (i drive mostly in town) but the misfiring is a somewhat new occurence. What do you think?
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Tuesday, May 13th, 2008 AT 2:46 PM

5 Replies

Tiny
OBXAUTOMEDIC
  • EXPERT
First - is the check engine light on? If so have codes pulled and post here. Most auto parts store will do it for free.

OK, There are a few posibilities.

Does it lack power when excellerating? Does it feel like it is bogging down? If so it sounds like you catalitic converter is partially clogged.

Also the Idle Air Control Vavle could be Carboned up and need cleaning.

When was the last time the plugs were changed? If its been a while I would start there.

Post replies here.
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Saturday, May 24th, 2008 AT 7:03 PM
Tiny
JOEL LOUIS
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I had a guy remove the cat converter recently but it didn't really make a difference. The plugs are about 3 or so years old. My dad said he changed them back then because the van was doing sort of the same thing. The guy who took off the converter guesses it's the fuel injectors but he couldn't change them because there's a special dealer only tool used to replace them. Does that sound possible?
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Sunday, May 25th, 2008 AT 12:46 PM
Tiny
OBXAUTOMEDIC
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Well I doubt it a dealer only tool otherwise no garage would be able to change them. I am not that it takes a special tool I haven't run into having to change the Injectors on the astro yet. I will be able to check Monday at the NAPA Store I work parttime at. And will let you know Monday afternoon sometime.
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Sunday, May 25th, 2008 AT 5:34 PM
Tiny
JOEL LOUIS
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Thanks for all your advice. If you could look into that "special" part for me I would greatly appreciate that. I look forward to hearing back from you.
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Sunday, May 25th, 2008 AT 7:53 PM
Tiny
OBXAUTOMEDIC
  • EXPERT
OK, No it doesn't take any type of Special Tool.

There are what looks like plastic clips that have to be squeezed together to unlock them. How hard they may be to get out from there I am not sure. Here is a couple diagrams............


http://www.2carpros.com/forum/automotive_pictures/188069_fuelinjection95astro_1.jpg




http://www.2carpros.com/forum/automotive_pictures/188069_fuelinjection95astrocloseup_1.jpg




http://www.2carpros.com/forum/automotive_pictures/188069_fuelinjection95astrolocation_1.jpg

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Monday, May 26th, 2008 AT 10:57 AM

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