WHY IS MY CAR ONLY FIRING 3 PISTONS?

  • Tiny
  • hunterbrouillette
  • 2001 Isuzu Rodeo
  • 100,000 miles

Only 3 of the six pistons are firing and I replaced the plugs and it worked for a day and now it doesn't work again

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Monday, September 17th, 2012 AT 10:32 PM

6 Replies

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,556 posts

Start with a compression test to verify the motor is good.

Roy

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Tuesday, September 18th, 2012 AT 12:57 AM
  • Tiny
  • KHLow2008
  • Expert
  • 41,997 posts

Which 3 are working? Any trouble codes? Any repairs done prior to this occurring?

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Tuesday, September 18th, 2012 AT 9:40 AM
  • Tiny
  • hunterbrouillette
  • Member

The pistons on the driver aren't working. And I forget the exact codes but it said that there were random misfires. And I had to replace the engine in the car recently.

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Tuesday, September 18th, 2012 AT 10:19 AM
  • Tiny
  • KHLow2008
  • Expert
  • 41,997 posts

You mean this happened after replacement of engine?
Apart from misfiring codes, are there any others?

The compression suggested would tell us something.
If replacing the spark plugs worked for a while, it could be the injectors or cam timing etc.

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Tuesday, September 18th, 2012 AT 10:23 AM
  • Tiny
  • hunterbrouillette
  • Member

Yes it occurred after I had replaced it. And I don't recall there being any others but ill perform another check to be sure. And I reset the timing and made sure that it was perfect a few times because I had thought that that was the problem

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Tuesday, September 18th, 2012 AT 6:31 PM
  • Tiny
  • renegade65
  • Member

Coil 2 and 5

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Saturday, January 5th, 2013 AT 3:07 AM

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