CYLINDER PROBLEMS

  • Tiny
  • Tamara Halpin
  • 1993 Saturn Sport Coupe
  • 4 CYL
  • FWD
  • automatic
  • 131,299 miles

1993 Saturn Sports Coupe 1.4L car isn't firing on two cylinders, changed the coil pack, but it didn't fix the probem, any suggestions what to try next.

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Thursday, June 23rd, 2011 AT 4:35 PM

6 Replies

  • Tiny
  • Docfixit
  • Expert
  • 18,991 posts

What cylinders? Has compression test been done?

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Thursday, June 23rd, 2011 AT 4:39 PM
  • Tiny
  • Tamara Halpin
  • Member

Not firing on 1 and 4. Yes compression test has been done

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Thursday, June 23rd, 2011 AT 4:44 PM
  • Tiny
  • Docfixit
  • Expert
  • 18,991 posts

What where results? Is there spark at plugs 1=4? Are injectors pulsing?

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Thursday, June 23rd, 2011 AT 4:51 PM
  • Tiny
  • Tamara Halpin
  • Member

Compression good, no spark, yes injectors pulsing

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Thursday, June 23rd, 2011 AT 4:55 PM
  • Tiny
  • Docfixit
  • Expert
  • 18,991 posts

Think Ignition Control Module faulty

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Thursday, June 23rd, 2011 AT 5:05 PM
  • Tiny
  • rasmataz
  • Member

Also check if it has a crankshaft positioning sensor-

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Thursday, June 23rd, 2011 AT 5:57 PM

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