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Exam 26: Zf 9hp Chrysler 948te Transmission

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Question 31

True/False

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The 9HP48 transmission failsafe only allows third gear.

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Question 32

Multiple Choice

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Choose the correct statement with respect to dog clutches.

A) They can only be engaged or disengaged when the transmission is in neutral.
B) They do not result in a delay when the transmission shifts gears.
C) The transmission can directly downshift from fifth gear to fourth gear.
D) They necessitate the start/stop function to involve an auxiliary fluid pump.

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Question 33

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Tech A states that in the 948TE transmission, dog clutches are used to engage all gears inside the transmission. Tech B states that dog clutches are used to save space inside the transmission. Who is correct?

Special tools are required to remove all the following components of the 948TE transmission EXCEPT which one?

During the disassembly of a 948TE transmission, a(n) ________ can be used to remove the transfer gear bearing from the transmission case.

Using a feeler gauge, check the C-clutch pack. If the clearance is not correct:

Dog clutches are applied and released ________.

Tech A states that the sixth and eighth gears of a 948TE transmission are overdrive gears. Tech B states that the ninth gear is an overdrive gear as well. Who is correct?

A vehicle with a 9HP transmission comes in to the shop with the customer complaining about the transmission slipping. You test drive the vehicle and confirm the transmission is slipping and also has codes for 2nd, 6th, and 8th gear. Tech A states that the dog clutches could have failed. Tech B states that the c-clutch could have failed. Who is correct?

Dog clutches are monitored by the TCM through a:

A slide hammer along with a ________ should be used to help remove the D-clutch piston from the transmission case of a 948TE transmission.

The D-clutch piston can be removed from the transmission case using a(n) :

Tech A states that the 948TE transmission will default to 5th gear in the event of a failure. Tech B states that the transmission does not have a fail-safe gear. Who is correct?

Tech A says that the 948TE transmission is start/stop capable with no additional parts. Tech B states that the transmission needs an additional electric pump to be start stop capable. Who is correct?

Technician A says that the 948TE transmission uses nine or ten solenoids to operate. Technician B says that the limp-home solenoid (or the tenth solenoid) must be engaged for the transmission to operate. Who is correct?

Tech A states that the dog clutches can only be applied when power is flowing through the transmission. Tech B states that the dog clutch components must match the speed of each other before engaging. Who is correct?

A(n) __________ is used to aid in the removal of the D-clutch piston from the transmission case.

When removing the E-clutch off the hub and shaft, a technician must be careful not to lose the __________ on the clutch.

A vehicle with a 9HP transmission comes in to the shop. The customer complains that the vehicle drives fine around town, but when they attempt to go on the highway the vehicle will not shift and turns on the MIL. You confirm the problem and find slip codes for 4th and 5th gear. Tech A states that clutch "E" could have failed. Tech B states that clutch "B" could have failed. Who is correct?

The 9HP48 transmission is the only current automatic transmission using two dog clutches.