Hi all...first post for me. I need help as I'm starting to think that I'm chasing a ghost. I picked up a 96 2.4 Tacoma (2wd, auto, regular cab) a couple months ago. It needed some work...but I intend to be the truck's last owner and I enjoy pretending to be a mechanic after I leave my cubicle every day....so the time and expense are not a problem though I certainly don't want to dump money into it just for fun.
Bottom line question I'm trying to figure out: how much engine vibration is normal on this motor? Specifically after the engine is hot and the truck is stopped in drive. I feel, and visibly see, what I consider to be excessive vibration. The hood shakes pretty violently, the steering wheel shakes, drinks in the cup holder stay well-mixed, and the view through the rear view mirror is pretty blurry. Shift into neutral and it all goes away....becomes nice and smooth.
I don't want this post to turn into a novel - but I assume I'll be asked about what I've already done...
Brand new Toyota parts: rotor, cap, plug wires, plugs, fuel filter
New exhaust - including the manifold and all the way back...new 02 sensors
New EGR and PCV
Removed and thoroughly cleaned the throttle body, IAC, and MAF
All vacuum lines replaced
Fuel injectors remanufactured (original...I did an R&R through Rock Auto)
Motor mounts and tranny mount replaced
The CEL is not on and there are no issues according to he hand-held OBDII scanner I have.
Hopefully no one goes crazy on me here...as I said...though this list put a big dent in my pocket, I enjoy doing the work as a hobby and since I just got the truck and it was in bad shape, I wanted the piece of mind of going right through it myself.
After putting on the new mounts on and still having the same vibration, I was frustrated. I actually took the truck to the local dealership. They had the truck for a day and called to tell me they could not find anything wrong. I went back and the tech took a test ride with me. As the first light, the truck was shaking like an old man at Hooters, but the tech said the vibration was normal for the 2RZ-FE. I asked him if it could be the harmonic balancer and he said that he looked at it already and it looks fine. Good news is they didn't charge me a penny for diagnostics.
The voice in my head is telling me the vibration is enough to do damage (crack my new manifold or something) and I should just replace the balancer to see what happens...of course, I may as well replace the belts while I'm there and fix the very minor leak I have coming from the timing chain cover or crank seal (not sure which one yet). The other part of me (sounds like my wife's voice) is saying 'enough already'. What if I do all of that the vibration is still there. The truck runs fine except for this vibration which may be 'normal'. I don't know how to post a video, or I'd put up a clip showing the vibration as I know it's hard to tell if it's 'normal' or not based upon written description.
Sorry for this long post from a newbie...I just need help to figure out if I keep chasing this, or accept what I've got and just drive happy.