Is the ZF 6HP21 transmission a good transmission?
Is the ZF 6HP21 transmission a good transmission?
In fact ZF 6HP21 is a very good transmission, powerful, bullet proof pretty much if serviced in time and proper fluid pressure maintained! This transmission is still considered one of the best and has carbon clutches vs cheap paper ones you can find on Japanese cars.
When to replace a ZF transmission adapter number 2?
So if engine temps are good and transmission still runs hot 100-110, it means heat exchanger is clogged with transmission clutches, Torque Convertor wear and tear dirt. Replace it and check if it got better. This transmission will die quick if temps are not good. This adapter (number 2) usually lasts only 60-70k miles.
Is there a warranty on Blue Bird bus parts?
Service parts warranties are in addition to our new bus warranty that covers parts for up to 10 years. Contact your Blue Bird dealer for genuine Blue Bird parts.
What should temp be for ZF automatic transmission?
It is very important to keep temps in specs not only because of few degrees, but because with leaking cooling system lose coolant pressure introducing air in the system, causing uneven cooling and overheating both engine and transmission. Good OEM specs are 103-105 cycle when idling and lower hose should be hot around 60-80C.
In fact ZF 6HP21 is a very good transmission, powerful, bullet proof pretty much if serviced in time and proper fluid pressure maintained! This transmission is still considered one of the best and has carbon clutches vs cheap paper ones you can find on Japanese cars.
Why is my ZF automatic transmission not working?
5)If after a minute you noticed your heater is not hot anymore, it means you’ve got a leak!. 6)This Engine has self bleeding cooling system, which means you cannot get air pocket if system is well sealed.
Why does my Blue Bird not shift into neutral?
Blue Bird mentioned brake switch problem. This happens driving down the road or when trying to shift into gear from neutral? Assuming it has one, is the goofy little light coming on on the dash that says when you are pushing the brake pedal? Could be a brake light relay if it isn’t…we’ve changed more than a couple.
Why is my transmission range inhibit warning not working?
Basically the tcm would get hot and develop a fault putting it into limp mode or neutral while driving, let it sit key off for 20-30 min and would be ok till the tcm got warm again, 5-15 min. When hot it wold not show up on the network or talk to DOC.
