I've been hearing once in awhile I hear a low clunk when the car is in park has anyone experience this under passenger side.
Member
I've never encountered that, but for anyone who finds this thread in the future, it is normal to have a clunk as you pass 20 MPH for the first time after starting up.
Senior Member
Quote:
Yea I get that all the time, it never bothered me because I experienced that same exact thing in my dad's car.Originally Posted by alexdi
I've never encountered that, but for anyone who finds this thread in the future, it is normal to have a clunk as you pass 20 MPH for the first time after starting up.
Senior Member
Quote:
How different is this klunk at 20 mph from the vibration reported in the TSB's as a fault with the transmission?Originally Posted by sg1214
Yea I get that all the time, it never bothered me because I experienced that same exact thing in my dad's car.
Member
The transmission TSB is a response to the CVT's tendency to lug the engine at part-throttle. This induces a low-frequency resonance perceived as a booming sound. The TSB reprograms the CVT to hold higher engine speeds that won't cause the resonance. The 20 MPH clunk has something to do with automatic brake calibration; it's unrelated.