You should check the engine mounts again. Make sure you have the motion dampeners on between the engine and the mounts. Basically it's the rubber spacer you should have put on between the two to dampen the vibration of the engine to the mount. At least thats what it sounds like to me.
SOURCE: 2000 Dodge neon motor mount
Not sure why the they did that i am guessing the reason is that either it does not matter or every car is unique. i would just swap the old one onto the new one just to be safe.
I will do a little research to find the real reason
SOURCE: front end shaking
I had the same problem on a 2003 Kia Sedona where the front end would vibrate excessively while accerating at freeway speeds. Over time it got worse and was noticable at lower and lower speeds and while just maintaining speed, but went away when I took my foot off the gas.
It turned out to be the inner CV joint on the passenger side. You can check for this by grabbing the inner and outer half axels with large vice grips or slip-joint pilers and turning them in opposite directions while listening for crunching or "loose parts" noises.
The CV is sold with the axle so I just bought the outer half axle for $80 (which has the inner and outer CV joints attached) and replaced it. If you do it yourself, make sure you have a ball spline fork, a hub puller tool, and a big torque wrench for putting the bearing assembly back on. You can rent these at AutoZone.
The bad CV joint also caused the bearing to go bad. It had burn marks and made a grinding noise while turning. It was very hard to get out, so I had to take the assembly to a machine shop to have it taken out and the new one put in. $35 for bearing and $30 for machine shop work.
After repair, I took an 800 mile road trip that weekend with no problems other than barely noticable vibration from the driver side at 70+ mph. I figure vibration was so bad pre-repair that it messed up something on the other side as well, so I'll check out the driver side bearing and CV when I get a chance.
SOURCE: replace lowerr right motor mount on dodge 2001
Yes you can. Just put the car on JACK STANDS, As you will need to raist the engine slightly with a jack to take the load off of the mount to remove it. Buy the new mount first, so you will see where the bolts go. BE safe and don't rely on a tire jack
SOURCE: 2004 Dodge Neon SXT, added new battery need code to reset car
if you are the original owner, look in your paperwork. if you cant get to the original owner or they dont have the info, you can go to your dealer, and they can reset it for you. and charge you
or you can just start entering codes till it works, which will take you weeks or more.
good luck
SOURCE: I HAVE A 2005 DODGE
We are looking to buy the same 2005 Dodge Neon 2.0 SXT that has 150,000 miles and it does the same thing - vibrates at acceleration and lacks power. We've been told by the buyer that a mechanic said the "Harmonic "Balancer" needs to be replaced. We are hoping to be able to bring the car to a mechanic tomorrow to find out what it is and if it is a major or minor repair (which will determine if we purchase the car or not!).
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