Question 1

Tech A states that taking multiple pictures during disassembly of a transmission will help ease the reassembly. Tech B states that taking pictures during disassembly only delays the service. Who is correct?

Accepted Answer

Taking multiple pictures during disassembly can serve as a useful reference during reassembly, helping to ensure that parts are returned to their correct positions and orientations.

Question 2

A 948TE transmission is to be disassembled. Tech A states that the transmission pan bolts and pan can be removed easily by pulling on them. Tech B states that the metal clip that holds the transmission pass-through connector into the transmission pan should be removed first before removing the pan bolts and the pan. Who is correct?

Accepted Answer

Tech B is correct because the metal clip holding the transmission pass-through connector should be removed first to avoid damaging the connector or pan when removing the transmission pan bolts and the pan.

Question 3

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

Accepted Answer

A bearing puller is a tool specifically designed to remove bearings from their housings or shafts, making it the appropriate tool for removing the transfer gear bearing from the transmission case.

Question 4

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

Accepted Answer

A slide hammer along with a hook adapter is typically used to remove components like the D-clutch piston from a transmission case, as it allows for a secure grip and effective pulling force.

Question 5

Technician A says that the two halves of the 948TE transmission can be separated after removing all the bolts from the bellhousing. Technician B says that the first component removed after separating the case halves (after removing the metal gasket) is the differential. Who is correct?

Accepted Answer

The answer of Technician A says that the two halves...

Question 6

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

Accepted Answer

The E-clutch hub can typically be removed without special tools, unlike the other components listed which require specific tools for removal.

Question 7

Technician A says that the pressure transducer switch can be unplugged at any time by removing the transmission pan. Technician B says that the pressure transducer switch can be unplugged only after removing the valve body. Who is correct?

Accepted Answer

The pressure transducer switch is typically located on or near the valve body, so it usually requires removing the valve body to access and unplug it.

Question 8

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

Accepted Answer

The answer of When removing the E-clutch off the hub...

Question 9

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

Accepted Answer

A slide hammer and hook adapter are specifically designed to pull out components like the D-clutch piston from the transmission case, providing the necessary force and grip.

Question 10

Technician A says that although transmissions may appear similar, there may be differences between model years and models. Technician B says that regardless of year or model, the correct service manual should always be followed. Who is correct?

Accepted Answer

Technician A is correct because transmissions can have differences between model years and models. Technician B is also correct because it is important to follow the correct service manual for the specific year and model.

Question 11

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

Accepted Answer

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

Question 12

The 9HP48 has nine forward gears and one reverse.

Accepted Answer

The 9HP48 is a type of automatic transmission that features nine forward gears and one reverse gear, designed for improved fuel efficiency and performance.

Question 13

Technician A says that the 948TE transmission has four overdrive gears. Technician B says that the first gear is very low to allow the transmission to be used with low displacement vehicles. Who is correct?

Accepted Answer

The 948TE transmission is known for having multiple overdrive gears, and its first gear is designed to be low to accommodate low displacement vehicles, making both technicians correct.

Question 14

Technician A says that dog clutches are being used as they take up very little space. Technician B says that dog clutches are being used as they reduce parasitic losses because there are no clutch plates to drag when the clutch is off. Who is correct?

Accepted Answer

Dog clutches are compact, taking up little space, and they reduce parasitic losses as they do not have clutch plates that drag when disengaged.

Question 15

Dog clutches are monitored by the TCM through a:

Accepted Answer

The TCM monitors dog clutches through a pressure transducer to determine the clutch pressure and ensure proper engagement and disengagement.

Question 16

The 9HP48 transmission failsafe only allows third gear.

Accepted Answer

The 9HP48 transmission failsafe mode typically allows the vehicle to operate in a limited range of gears, not just third gear, to prevent damage while still enabling the vehicle to be driven to a service location.

Question 17

Technician A says that the 948TE uses four sets of nested planetary gears. Technician B says that the 948TE transmission uses two dog clutches and three additional multidisc clutches. Who is correct?
Neither technician

Accepted Answer

The answer of Technician A says that the 948TE uses...

Question 18

The 9HP48 transmission uses a shift by wire solenoid referred to as the limp-home solenoid.

Accepted Answer

The question states that the 9HP48 transmission uses a shift by wire solenoid referred to as the limp-home solenoid. This means that the transmission uses an electronic solenoid to shift gears, rather than a mechanical linkage.

Question 19

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?

Accepted Answer

The 948TE transmission uses nine solenoids to operate, plus a tenth solenoid that is used for limp-home mode. Therefore, both technicians are correct.

Question 20

A dog clutch is teeth cut into mating parts that as they slide together, the teeth will engage to lock the two components together.

Accepted Answer

A dog clutch is a mechanical device that uses interlocking teeth to connect two rotating components, allowing them to engage or disengage as needed.

Quiz 26: Zf 9hp Chrysler 948te Transmission

Tech A states that taking multiple pictures during disassembly of a transmission will help ease the reassembly. Tech B states that taking pictures during disassembly only delays the service. Who is correct?

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

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

Technician A says that the two halves of the 948TE transmission can be separated after removing all the bolts from the bellhousing. Technician B says that the first component removed after separating the case halves (after removing the metal gasket) is the differential. Who is correct?

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

Technician A says that the pressure transducer switch can be unplugged at any time by removing the transmission pan. Technician B says that the pressure transducer switch can be unplugged only after removing the valve body. Who is correct?

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

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

Technician A says that although transmissions may appear similar, there may be differences between model years and models. Technician B says that regardless of year or model, the correct service manual should always be followed. Who is correct?

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

The 9HP48 has nine forward gears and one reverse.

Technician A says that the 948TE transmission has four overdrive gears. Technician B says that the first gear is very low to allow the transmission to be used with low displacement vehicles. Who is correct?

Technician A says that dog clutches are being used as they take up very little space. Technician B says that dog clutches are being used as they reduce parasitic losses because there are no clutch plates to drag when the clutch is off. Who is correct?

Dog clutches are monitored by the TCM through a:

The 9HP48 transmission failsafe only allows third gear.

Technician A says that the 948TE uses four sets of nested planetary gears. Technician B says that the 948TE transmission uses two dog clutches and three additional multidisc clutches. Who is correct? Neither technician

The 9HP48 transmission uses a shift by wire solenoid referred to as the limp-home solenoid.

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?

A dog clutch is teeth cut into mating parts that as they slide together, the teeth will engage to lock the two components together.