Technician A says clutch slippage can best be diagnosed with the vehicle stopped, parking brake applied, placing the transmission in 4th gear, and slowly releasing the clutch pedal to see if it stalls the engine. Technician B says an excessively slipping clutch can cause friction surface warpage or hot spots. Who is correct?

Select one:

a. Technician A

b. Technician B

c. Both Technician A and Technician B

d. Neither Technician A nor Technician B

c. Both Technician A and Technician B

Explanation:

It is true that the clutch slippage can be diagnosed with vehicle stopped parking brake applied, placing the transmission in 4th gear, and slowly releasing the clutch pedal to see if it stalls the engine. Hence techician A is correct.

Moreover, excessive slipping clutch can cause friction surface warpage (being bent or twisted out of shape) and hot spot (heat energy from the friction.

Therefore, both technician A and B are correct.