1998 Dodge Ram What would cause misfire on cylinder 3 &

Tiny
JGME67
  • MEMBER
  • 1998 DODGE RAM
Engine Mechanical problem
1998 Dodge Ram V8 Two Wheel Drive Automatic

What would cause misfire on cylinder 3 & 4 on my 5.9 engine? Can you please tell me how I can solve this problem - I would really appreciate it!
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Tuesday, July 28th, 2009 AT 10:15 PM

5 Replies

Tiny
MHPAUTOS
  • EXPERT
Hi there, normally a miss fire on parent cylinders can be a vacuum leak at the inlet port near those cylinders, a combustion leak between the cylinders, or you may just have a simple tune issue, start with the tune and work from there.

Mark (mhpautos)
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Tuesday, July 28th, 2009 AT 10:18 PM
Tiny
JGME67
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Can you please provide me with a diagram. I'm new at this and would like very much to resolve this issue without having to pay a mechanic. I dont understand the diff between parent cylinder and the inlet you were referring too. Thanks again!
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Tuesday, July 28th, 2009 AT 10:34 PM
Tiny
MHPAUTOS
  • EXPERT
Hi there,

I need to get access to Mitchell 1 first, this I can only do at home, as it is early afternoon here in Aust, I won't be home for a few hrs yet, but I will do this as soon as I can.

Mark (mhpautos)
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Tuesday, July 28th, 2009 AT 10:40 PM
Tiny
JGME67
  • MEMBER
Thank you so very much for helping me with this issue. I will awaiit to hear from you & thanks again!
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Tuesday, July 28th, 2009 AT 10:42 PM
Tiny
MHPAUTOS
  • EXPERT
Hi there have been having a re think on your problems your engine set up like in the pic with the distributor at the rear, if so see that No 3& 4 are next to each other in the distributor cap, so i would first be checking for any spark jumping at the cap terminals, just start the engine and look at it in the dark if it is jumping you will see it, give it a few revs as well, failing that check under the cap and look for any fine cracks and tracking lines between these two posts on the cap, start here.

mark (mhpautos)


http://www.2carpros.com/forum/automotive_pictures/61395_1_32.jpg

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Wednesday, July 29th, 2009 AT 5:46 AM

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