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What is necessary for torque converter clutch lockup to take place? a. The lockup solenoid check ball must be off its seat and the switch valve held up by spring tension. b. The lockup solenoid must be energized with the check ball on its seat and the switch valve held down by line pressure. c. The lockup check ball must be off its seat and the switch valve held down by line pressure. d. The solenoid must have the check ball seated and the switch valve held up by spring tension.

BuyFind

Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
Publisher: Cengage Learning
ISBN: 9781133612315
BuyFind

Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
Publisher: Cengage Learning
ISBN: 9781133612315

Solutions

Chapter
Section
Chapter 41, Problem 14RQ
Textbook Problem

What is necessary for torque converter clutch lockup to take place?

a. The lockup solenoid check ball must be off its seat and the switch valve held up by spring tension.

b. The lockup solenoid must be energized with the check ball on its seat and the switch valve held down by line pressure.

c. The lockup check ball must be off its seat and the switch valve held down by line pressure.

d. The solenoid must have the check ball seated and the switch valve held up by spring tension.

Expert Solution
To determine

The necessity for the torque converter clutch lockup.

Explanation of Solution

The torque converter clutch lockup has steps for getting lock which says that the lockup must be energized. This makes the seating of the check ball in its place and a reaction area is made in the switch valve by the line pressure so that the valve can move towards the spring tension...

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Chapter 41 Solutions

Automotive Technology: A Systems Approach (MindTap Course List)
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