Re: 95 Econoline Shudder at gear change
On Mon, 23 Jan 2006 00:05:07 GMT, "TM"
>I have a 95 Econoline with an automatic overdrive tranny, and it shudders
>when changing gears, not always, usually only when at full or near full
>throttle. I have replaced the Universal Joints and it did not make any
>difference. I can determine that the vibration is from the front of the
>drivetrain. Any suggestions. It only has 45,000 miles.
The cause is likely torque converter shudder. This is
especially true if you have not had the trans serviced
properly which will include draining the converter. You
have either an AODE or an E4OD trans. Either trans may
possibly be helped or cured with a complete service which
includes a new filter and draining the torque converter.
The AODE will need about 13 qts for a refill - the E4OD will
need about 16qts. Added insurance can be had by adding 2
bottles of LubeGard with the fresh fluid. Another product
that works well is Shudderfix which comes in a tube. The
longer you allow this condition to continue, the more likely
it is that converter replacement will be required. If you
have the AODE trans, you should install an updated converter
solenoid while the pan is off. The updated solenoid
provides for quicker lockup of the converter reducing the
opportunity for it to shudder. It is available in the
aftermarket or on the net for under $20US.