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Tiny
NEAL RYAN
  • MEMBER
  • 2000 CHEVROLET ASTRO
  • AWD
  • AUTOMATIC
My 2000 astro van starts and idles rough and chugs when you go to take off then gets a little smother around 35mph. I already changed the fuel pump about a year ago just changed the wires and fuel filter.
Friday, February 18th, 2011 AT 7:01 PM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
If you have the spider fuel system, that system is known for problems. I'd still use a fuel pressure gage on it, to check. The fuel poppets may need cleaning. The cleaning procedure I've seen is, a shop procedure. I don't know if injector cleaner in the gas will help or not? How long since a tune-up?
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Friday, February 18th, 2011 AT 7:10 PM
Tiny
NEAL RYAN
  • MEMBER
  • 2 POSTS
Not even 15000 miles on the plugs and cap and rotor and did wires again last week because 2 wires were burnt along with the coil wire and that fixed the problem for about a week now its doing the chug thing again
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Friday, February 18th, 2011 AT 7:19 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
You can try some seafoam, see if it helps anything? Inspect and test the IACV, Map sensor, MAF sensor and the throttle position sensor-also check fuel pressure
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Friday, February 18th, 2011 AT 8:55 PM

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