Intermittent Rough Ride/Vibration

[73Chally]

Aren't pretty much all of these suggestions things that would cause a constant vibration?  If I remember correctly he said it was only 2 times on the entire trip, once up and once back down.  As a side note, how long did the vibration last?  Was it pretty much the same amount of time both times?  My money would be on the stretch of pavement you were on.  I have similar stretches around my house.

[BIGSHCLUNK]

Mine was very intermittent........

[ViperMan]

My left exhaust tip vibrates against my tail panel, but only at idle in park.

My thought is axle bearings - we had a work truck at the radio station I worked at - you'd be cruising along the highway when you suddenly thought you hit a set of rumble bumps.  Scared the crap outta me every time.

Jeff

[VTMopar]

Yes -- over the nearly 400 miles it happened twice -- once in the a.m. on a 2-lane road not in the best shape -- and later that afternoon on a new (like this year) stretch of road.   It rides so smooth otherwise -- so it is quite noticeable when it happened.   I should note that I have only felt it at speeds in the 60 to 70 mph range....... never at lower speeds -- and slowing down to 50 or so didn't seem to change anything.   The car runs on the high side of the temp guage -- (not overheating -- but at the high end of the range)..... any chance that has something to with it?    I wish I could provide more info -- intermittant problems are always a pain ..... but if any of you can help point me in the "most likely" areas to check out first -- that would be much appreciated. 

Vermont MOPAR 

[Chryco Psycho]

it should not be running above 1/2 guage unless the guage is inaccurate

[VTMopar]

Yeah Chryco -- I think the guage is off some -- but will check it out.    But do you think it has anything to do with my "vibration?"

Vermont MOPAR 

[LAA66]

 If what you are saying is,, the vibration doesn't go away with speed changes then it might be the road you were on.  Just let it go until it happens again then analyse the problem.

 As for the gauge mine has always run on the low side. Thru many  a thermostate and other cooling system change, that's just how it reads.

  One easy check for you is to put a thermometer in the radiator when the engine is warmed up. (I'm sure you know the hot engine/radiator cap removal thing.) Then relate the temperature to your gauge on the dash. I think most older cars run best at around 180 degrees?? Maybe someone will chime in with their opinion.