2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
So I hopped over from the Durango boards for the more active Ram boards since the motors are the same, and have my question narrowed down. I have been experiencing an rpm dependent vibration(both driving while parked) , and I think it is due to the previous owner swapping a 5.2 for the original 5.9. No clue why, and I don't think they did it on purpose. Since they didn't do it on purpose, I don't think they realized differences in the torque converter and flex plate for the two motors. Does anyone have input if this might be my issue, or a way to test it, or different ideas?
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Take a look at the balancer on the front and see if it has the 5.9 or the 5.2 one. I'm guessing if they changed it they changed the flex plate too and if they forgot they probably forgot the flex plate. Also if they didn't get that right or didn't know they changed to the 5.2 it has the wrong pcm.
Well here's a picture from my how to rebuild your mopar magnum book, and there's a picture from my 360 where you can see a slot cut out. Basically a 318 has a solid balancer and a 360 has a slot cut out somewhere(it may vary between years).
OK I will be checking both tomorrow while it's light out. I can't imagine the balancer would have gotten changed, I would think when they dropped the 5.2 in they would have left it alone, which would mean it's the right one for the motor.
I think I mentioned it in my post on the Durango boards, but forgot it here. I think I do have a miss at idle, but never recognized it as a miss until someone brought it up. But it clears up, or seems to, above 1k rpm. If it is a miss do you think it could be coming back at high rpm to cause the vibratio? And do yyou think the miss is possibly a result of having the 5.9 pcm? I have yet to verify which one I have, will do it this afternoon.
As far as the flex plate, I have never had a motor that far apart. Is the order motor/flexplate/TC/transmission?
And the problem is I have no idea if they left the flex plate on. I know it's a junkyard motor but who knows if it's they reused the flex plate. I also don't know what year the motor is, it may be different. Is the year stamped on the block?