Well, I am still having an annoying vibration at idle that is annoying the crap outta me. It shakes the seat, shifter, steering wheel, and if I have a bottle water you can see the water vibrating. It is not a violent shake, but is just plain annoying and isn't normal. It all happened after I had my exhaust manifold replaced and engine mounts replaced. Well, that is when I noticed it at least. Ever since I noticed the vibration, I have been trying to find the cause. I have cleaned and replaced many things so far. My jeep idles around 700-800 RPMs. Here is what I have done so far.
New plugs, wires, Distributor cap and rotor
Cleaned throttle body
Cleaned IAC valve
New TPS Sensor
Checked for vacuum leaks and found none
Made sure exhaust manifold and intake bolts are tight and there is no leaks
New water pump
New timing chain, sprockets, tensioner, guide
New idler pulley
New power steering pump and pulley
New Harmonic Balancer
Replaced the crank sensor and didn't help so I returned it
Replaced the ignition coil and didn't help so I returned it
This is all I can think of so far. After I had my timing chain kit installed I notice a tapping that sounds like it is coming from the distributor sometimes. It eventually goes away but comes back sometimes. My stethoscope is pointing to the distributor.
With all of this said, do you think my Distributor may be the problem? I can get a remanufactured one locally for cheap. I am at a lost and need some help.
My jeep has the normal valvetrain noise and thought I might have a collapsed lifter but my engine doesn't seem to miss. It does have 178,000 miles and seems a little sluggish but nothing out of the ordinary.
I am just trying to see what I should do next.
Replace the distributor? What are the signs of a bad distributor?