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-   -   engine shake (https://www.dieselbombers.com/12-valve-2nd-gen-dodge-cummins-94-98/56793-engine-shake.html)

12valver85 08-16-2010 08:22 PM

engine shake
 
my engine shakes when im in high gear and goin slow (its an automatic) but as soon as i get on it it stops.. not sure if its not gettin enough fuel or what the problem is

95cumminsguy 08-16-2010 08:27 PM

Mine did that too in the low rpm's after I bumped my timing up I had to adjust my AFC to give it a little more fuel with low boost to make it stop doing it hope that helps ya out a little:c:

12valver85 08-16-2010 08:36 PM

thanks ill give er a try :yeah:

bigdan120 08-17-2010 09:24 AM

1995 Auto Hey I have the same EXACT problem.....LOL But now as an added plus it is blowing blue smoke at start up and misses really bad until warm. I thought I had found the problem. Broken valve spring on cylinder 3 exhaust but that's fixed and it still does it.......
New injectors, adj timing, checked fuel pressure, changed fuel filters, changed oil, worked on the AFC.... Yeah I think I am experiencing a blown head gasket or cracked head...If you listen real hard when it is idling you can here something that just isn't right.Its like it is missing on 1 cylinder.........Not sure ! Let me know what you find......I will do the same...Mine will do it any time you are lugging it.

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Mine will shake so bad that rust falls out and and my I cant even focus my eyes on the road LOL

bigdan120 08-23-2010 09:07 AM

Ok Updated! Pulled the head going to check valves tonight. Don't look like a bad gasket but I need to further my inspection. It looked like some of the material between the center cylinders is missing some of the gasket. The rings looked ok. Number six has some rust on it. Maybe anti freeze into cylinder ? It was not losing any though that I noticed. If I turn the head upside down and pour water in it that should work to see if I have a bent valve correct? Any info appreciated...

bigdan120 09-02-2010 09:02 AM

Ok update all my exhaust valves where leaking BAD.
Putting it together over this weekend.


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