- Jan 14, 2018
- 3
- 1
- 13
Hello,
A while back i bought a 2002 mustang (base) 3.8 automatic for $400 on craigslist, it ran and drove fine besides the 2 spun rod bearings.
I went to the local pull-a-part and bought another 3.8 from a 2000 mustang that was a 5spd. I swapped over all the 2002 sensors onto the "new engine". I used the 2002 intake, flywheel, and sensors. I fired up the engine and it vibrated and shook the car like no tomorrow at any rpm over idle.
I did some research and found out that the 99-00 models were external balanced and the 01-04 models were internal balanced. So i went back to the junk yard and got a harmonic balancer from a 01 mustang. I spent all day getting the weighted balancer off the engine and i installed the "neutral" balancer on the engine. It still shook and vibrated the entire car, like hardcore.
I checked the motor mounts and they're fine, i checked the tranny mount and it was beyond destroyed. I replaced the tranny mount and put a new coil and nearly ALL the vibration went away! AWESOME!
However it still vibrates at idle but not when i give it gas. I'm wondering if i should put the original weighted balancer back on the engine in order to get rid of the vibration. Any thoughts??
As of now, it's a 2000 engine with all 2002 parts like flywheel, balancer, intake, sensors etc... not sure what else it could be.
A while back i bought a 2002 mustang (base) 3.8 automatic for $400 on craigslist, it ran and drove fine besides the 2 spun rod bearings.
I went to the local pull-a-part and bought another 3.8 from a 2000 mustang that was a 5spd. I swapped over all the 2002 sensors onto the "new engine". I used the 2002 intake, flywheel, and sensors. I fired up the engine and it vibrated and shook the car like no tomorrow at any rpm over idle.
I did some research and found out that the 99-00 models were external balanced and the 01-04 models were internal balanced. So i went back to the junk yard and got a harmonic balancer from a 01 mustang. I spent all day getting the weighted balancer off the engine and i installed the "neutral" balancer on the engine. It still shook and vibrated the entire car, like hardcore.
I checked the motor mounts and they're fine, i checked the tranny mount and it was beyond destroyed. I replaced the tranny mount and put a new coil and nearly ALL the vibration went away! AWESOME!
However it still vibrates at idle but not when i give it gas. I'm wondering if i should put the original weighted balancer back on the engine in order to get rid of the vibration. Any thoughts??
As of now, it's a 2000 engine with all 2002 parts like flywheel, balancer, intake, sensors etc... not sure what else it could be.