Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 18, Problem 3ASRQ
Pinion gear-to-flywheel ring gear clearance is being discussed: Technician A says that if there is too much clearance, there will be a high pitch while the engine cranks. Technician B says that if there is too little clearance, there will be a high pitch noise after the engine is started. Who is correct?
- Technician A
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Chapter 18 Solutions
Automotive Technology
Ch. 18 - Prob. 1SACh. 18 - Prob. 2SACh. 18 - The part of the armature that the brushes ride on...Ch. 18 - Describe how to perform a starter bench test.Ch. 18 - True or False? The strength of the magnetic field...Ch. 18 - True or False? Worn armature bearings can result...Ch. 18 - Which of the following is not part of the starter...Ch. 18 - Which of the following tests would not be...Ch. 18 - When the starter spins but does not crank the...Ch. 18 - If the solenoid clicks while trying to crank the...
Ch. 18 - Prob. 5MCCh. 18 - Prob. 6MCCh. 18 - Prob. 7MCCh. 18 - The device that prevents the engine from turning...Ch. 18 - A control circuit voltage drop test shows a 1.1...Ch. 18 - An engine cranks slowly: Technician A says that a...Ch. 18 - Prob. 2ASRQCh. 18 - Pinion gear-to-flywheel ring gear clearance is...Ch. 18 - Technician A says that a starter no-load test is...Ch. 18 - Cranking current is excessive but is normal when...Ch. 18 - Prob. 6ASRQCh. 18 - When diagnosing a no-crank no-start condition, no...Ch. 18 - While discussing a no-crank condition: Technician...Ch. 18 - Prob. 9ASRQCh. 18 - While discussing electric motors: Technician A...
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- A car jumps out of gear into neutral, particularly when decelerating or going down hills: Technician A checks the shift lever and external gearshift linkage first. Technician B says that the clutch pilot bearing could be the problem. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardTechnician A says that delayed shifting can be caused by worn planetary gearset members. Technician B says that delayed shifts or slippage may be caused by leaking hydraulic circuits or sticking spool valves in the valve body. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardTechnician A says that if the shift for all forward gears is delayed, a slipping forward clutch is normally indicated. Technician B says that a bad forward clutch is indicated when there is a slip when the transmission shifts into any forward gear. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forward
- During a test drive, a noise that appears to be transmission related disappears when the driver brings the vehicle to a stop and disengages the clutch with the engine at idle. Technician A says that the noise may be caused by an internal transmission problem. Technician B says that the problem may be something interfering with the flywheel or pressure plate. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardTechnician A says that when a car is moving straight ahead, all differential gears rotate as a unit. Technician B says that when a car is turning a corner, the inside differential side gear rotates slowly on the pinion, causing the outside side gear to rotate faster. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardWhich of the following is the most likely cause for a shudder during the engagement of a lock-up torque converter? a. A bad converter b. Worn or damaged CV or U-joints c. A worn front planetary gearset d. Loose flexplatearrow_forward
- Technician A says that in a conventional transmission, the speed gears freewheel around the mainshaft until they are locked to it by the appropriate synchronizer. Technician B says that speed gears are an integral part of the countershaft assembly. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardWhile discussing a pressure test: Technician A says that this test is the most valuable diagnostic check for slippage when a gear is engaged. Technician B says that the test can identify the cause of late or harsh shifting. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardWhile installing a timing belt: Technician A installs the belt, turns the crankshaft two full rotations, then applies tension to the belt. Technician B installs the belt, applies tension, then turns the crankshaft two full rotations. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forward
- A six-cylinder engine has a 1 5 3 6 2 4 firing order. Technician A says that after cylinder number 1 begins its intake stroke, the crankshaft will have to travel 240° before cylinder number 3 begins its intake stoke. Technician B says that when cylinder number 3 and 4 are at TDC, cylinders number 5 and 2 are at BDC. Who is correct and explain why? Technician A Technician B Both A and B Neither A nor Barrow_forwardTechnician A says that some systems use a special modulated shift control solenoid. Technician B says that some systems use a special modulated converter clutch control solenoid. Who is correct? Technician A says that shift solenoids direct fluid flow to and away from the apply devices in the transmission. Technician B says that shift solenoids are used to mechanically apply a friction brake or multiple-disc clutch assembly. Who is correct? Technician A says that throttle position is an important input in most electronic shift control systems. Technician B says that vehicle speed is an important input for most electronic shift control systems. Who is correct? Technician A says that a faulty TP sensor can cause delayed shifts. Technician B says that delayed shifts can be caused by an open shift solenoid. Who is correct? Technician A says that some shift solenoids can be activated by providing a ground for the solenoid. Technician B says that some shift solenoids can be activated by…arrow_forwardTechnician A says that the countergear or cluster gear is actually several gears machined out of single piece of iron or steel. Technician B says that the countergear is driven by the clutch gear and drives the mainshaft speed gears. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forward
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