OK guys, How much fluid should go into the transmission when we do a drain and flush?? I just put synthetic in and feel that they may have put too much in??
Speedbird 1.
I got 34 qts. in mine included filters
Allison does not recommend flushing. Just fluid change. I guess the exception would be if the fluid is contaminated.
Get it up to operating temp. and check level on dipstick and go from there.
Actually, with a 2001 coach, your more accurate way to check fluid level is with the shift pad after it is fully warmed up.
OK Wolfe,
How does that work??
They managed to get almost 8gals in mine today which is why I am asking??
Speedbird 1.
To check fluid level from the driver's seat:
Transmission must be fully warmed up and stop on level ground. Best at rest area or fuel stop after couple of hour drive.
With engine running, transmission in neutral, push the up and down arrows at the same time.
The shift pad will show O L and then begin a count down.
At the end of the count down, it will show OL and either a - number or + number for how low/overfilled it is.
Just turn off the key or push N to exit this mode.
And you can also check for diagnostic codes from the driver's seat:
With engine off, ignition on: Push up and down arrows at the same time. Do it a second time.
It will now display: d 1 (for diagnostic code 1). If no codes, it will show d 1 - -. If there is a code, record it and push the MODE button to go to the next code. When you get to a - -, turn off key or push N to exit. Allison diagnostic codes are in you Allison manual and on Allison's website.
BTW, it an Allison 4000 series.
OK,if craneman got 34 qts. in the same trans and you got 8 gals.which is 32 qts. you should be low.
Thank you everyone,
It is parked, probably for the winter now that I have got it home, but will try the key pad method once I move it again.
Speedbird 1.