1997 Chevy Astro rough idle

1997 CHEVROLET ASTRO
235,000 MILES • 6 CYL • AWD • AUTOMATIC
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TERRY KOHUT
  • MEMBER
  • 1 POST
The diagnostic says miss on #4 cylinder. I have replaced the distributor cap and rotor along with the wires. The plugs are 30000 on 100000 plugs. It runs fine but has a rough idle. Terry
Jan 23, 2008 at 9:11 AM
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MERLIN2021
  • CAR REPAIR CONTRIBUTOR
  • 17,250 POSTS
Check the coil at the tower for any corrosion or rust.
Jan 23, 2008 at 9:17 AM
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