Chapter 76 ASE Questions Flashcards
Chapter 76 ASE questions at end of chapter
A car with an electronic air suspension is brought into the shop with an air compressor problem. Technician A checks the compressor’s electrical connections and its source of voltage. Technician B tests the compressor’s output pressure with a pressure gauge. Who is right?
A, B, Both, Neither
A faulty compressor will not produce the air pressure needed to maintain the correct ride height. First check the compressor’s electrical connections and its source of voltage. Then, connect a pressure gauge to the output hose fitting to measure the compressor’s pressure output. - Pg 1529
Answer: Both
A car’s wheel alignment angles are not within specifications. Technician A checks the condition of the ball joints. Technician B looks for worn control arm bushings. Who is right?
A, B, Both, Neither
Worn ball joints cause the steering knuckle and wheel assembly to be loose on the control arms. A worn ball joint might make a clunking or popping sound when turning or when driving over a bump. - Pg 1519
Worn control arm bushings can let the control arms move sideways, causing tire wear and steering problems.- Pg 1523
Answer: Tech B
All the following are typical automotive suspension system problems except:
-bad control arm bushings
-damaged flex plate
-worn strut rod bushings
-bad ball joints
Rubber bushings are commonly used in the inner ends of front control arms, rear control arms, and other parts. These bushings are wear prone and should be inspected periodically. - Pg 1522
Strut rod bushings and stabilizer (sway) bar bushings also require replacement when worn. - Pg 1524
Worn ball joints cause the steering knuckle and wheel assembly to be loose on the control arms. - Pg 1519
Answer: Damaged flex plate
A customer brings an automobile into the shop with a rough ride complaint. Technician A looks for worn strut shock absorbers. Technician B checks the condition of the strut mounting nuts. Who is right?
A, B, Both, Neither
Worn shock absorbers will cause a vehicle to ride poorly on rough roads. - Pg 1514
Answer: Tech A
A vehicle’s body bounces five times after a “shock bounce test” is performed. Technician A says this indicates that the shocks are in good condition. Technician B says the results of this test indicate bad shock absorbers. Who is right?
A, B, Both, Neither
A shock absorber bounce test and visual inspection will normally locate shock absorber problems. Generally, good shock absorbers should stop body movement in one or two rebounds. Bad shock absorbers will let the body bounce three or more times- Pg 1514
Answer: Tech B
A small pickup truck is brought into the shop with a leaking shock absorber. Technician A says the leaking shock will produce a high-pitch screeching noise when the vehicle is driven. Technician B says that the leaking shock must be replaced. Who is right?
A, B, Both, Neither
A loose or damaged shock absorber may produce a loud clanking or banging sound sound. - Pg 1514
When shock absorbers are faulty, they must be replaced. - Pg 1515
Answer: Tech B
A car’s strut shock absorbers are being replaced. During the procedure, Technician A says jack stands must be placed under the vehicle’s strut assemblies. Technician B says jack stands should be placed under the axles. Who is right?
A, B, Both, Neither
Warning! With many suspension systems, you must place jack stands or lifting devices under the control arms or the axle before removing the shock absorbers. This will keep the control arms or axle from flying downward when the shocks are unbolted- Pg 1515
Answer: Tech B
One of an automobile’s air shocks is leaking. Technician A says that exceeding the recommended maximum air pressure given for air shocks is safe and smoothes operation. Technician B says the shock’s air line can be repaired if it is leaking. Who is right?
A, B, Both, Neither
Gas-filled shocks must be replaced when faulty. Air shocks may be repairable
Caution! NEVER exceed the recommended maximum air pressure given for air shocks. If excess pressure is forced into the system, the shocks can be ruptured (blown apart) and ruined.- Pg 1516
Answer: Tech B
A customer wants to know why his car’s wheels are out of alignment. Technician A says weak suspension system springs can affect an automobile’s wheel alignment. Technician B says vehicles suspension problems cannot cause wheel misalignment. Who is right?
A, B, Both, Neither
Spring fatigue (weakening) allows a vehicle’s body to settle toward the axles, lowering vehicle ride height. This settling or sagging changes the position of the control arms, resulting in misaligned wheels. - Pg 1516
Answer: Tech A
A car’s curb weight is being measured. Technician A checks curb weight with the automobile’s gas tank empty. Technician B checks curb weight with the automobile’s gas tank full. Who is right?
A, B, Both, Neither
Curb weight is generally the weight of the vehicle with a full tank of fuel and no passengers or luggage. - Pg 1516
Answer: Tech B
A truck’s coil springs are being replaced (spring over control arm). During this procedure, Technician A unbolts the ball joint before compressing the coil spring. Technician B compresses the coil spring before unbolting the ball joint. Who is right?
A, B, Both, Neither
Warning! A compressed coil spring has a tremendous amount of stored energy. NEVER unbolt the ball joint without FIRST compressing the coil spring. If the spring is NOT compressed, the lower control arm and the spring could shoot downward with DEADLY FORCE as soon as the ball joint is unbolted.- Pg 1517
Answer: Tech B
Technician A says leaf springs are used in many late-model vehicles because they cannot break. Technician B says a spring compressor is not always required when replacing a rear coil spring. Who is right?
A, B, Both, Neither
Leaf spring service usually involves spring or bushing replacement. Leaf springs can break, especially in the middle. Always inspect leaf springs closely for cracks. - Pg 1518
When replacing a rear coil spring, a spring compressor may not be needed. After shock removal, the axle should drop far enough to free the coil spring. - Pg 1518
Answer: Tech B
A car is brought into the shop with a possible ball joint problem. Technician A uses a ball joint wear indicator to check the condition of the automobile’s ball joints. Technician B jacks up the vehicle and moves the control arm and joint. Who is right?
A, B, Both, and Neither
To check for ball joint wear, inspect the ball joint wear indicator or measure the play in the joint. With a ball joint wear indicator, simply inspect the shoulder on the joint to determine ball joint’s condition. - Pg 1520
Another way to check ball joint wear involves jacking up the vehicle and physically moving the control arm and joint.- Pg 1520
Answer: Both
A car’s front tires are worn. Technician A tells the car’s owner that worn control arm bushings may have caused this problem. Technician B tells the owner that worn control arm bushings do not affect tire wear. Who is right?
A, B, Both, Neither
Worn control arm bushings can let the control arms move sideways, causing tire wear and steering problems. - Pg 1523
Answer: Tech A
An automobile’s ball joints have been replaced. After performing this procedure, Technician A says the vehicle should be road tested before further adjustments are made. Technician B says the vehicle’s wheel alignment should be checked before the vehicle is road tested. Who is right?
A, B, Both, Neither
After servicing ball joints, control arm bushings, strut rods, springs, strut assemblies, or other suspension parts, wheel alignment must be checked and adjusted. NEVER let a vehicle leave the shop without checking alignment. - Pg 1527
Diagnostic Case Study: (last paragraph) After reassembly, the technician corrects vehicle wheel alignment and then takes the care for a brief test drive. - Pg 1529
Answer: Tech B
