Re: '97 4.6 weird shudder
> Backyard Mechanic wrote:
>>>AT and it seems to do it under light accel, at about 35 mph and above.
>>>It's also an intermittant problem, I tried to "make" it do it but it
>>>does it when it wants to. Since my last post, I discovered that it
>>>comes from under the car, not under the hood. I'm thinking
>>Now try it in the D position (or OD off), OD not trying to shift. That is
>>a symptom of Torque Converter lockup problem
>>How many miles on the car, when was trans last serviced?
>>Watch the tach... any noticable slippage?
> I noticed it does it right around the 30 mph range (18-20,000 on the
> tach), under slight accel, especially when going up an incline. Seems
> like it does it just before the tranny tries to shift to a lower gear,
> like when the motor starts to lug. Sounds exactly like going over
> rumble strips. 49,000 miles on it, just bought it from a lot so I don't
> know when it was last serviced.
> thanx again for the replies...
Sounds like what Backyard said. I have driven a couple of vehicles where
this has happened, have had the tranny serviced and things have smoothed
out for awhile.