A vehicle’s body bounces five times after a shock absorber bounce test is performed. Technician A says this indicates that the shock absorbers are in good condition. Technician B says the results of this test indicate bad shock absorbers. Who is right?

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 pickup truck is driven. Technician B says that the leaking shock must be replaced. Who is right?

One of a vehicle’s air shocks is leaking. Technician A says all the air shocks or air springs on a vehicle must be replaced with new units if one shock or spring is leaking. Technician B says the shock’s air line can be repaired if it is leaking. Who is right?

. A vehicle’s curb weight is being measured. Technician A checks curb weight with the vehicle’s gas tank empty. Technician B says adhering to the vehicle’s manufacturer-specified curb weight is unnecessary when trying to take an accurate measurement of the vehicle’s curb height. Who is right?

A full-size pickup truck’s coil springs are being replaced. During this procedure, Technician A unbolts the ball joint on the control arm before compressing the coil spring. Technician B says that a new larger coil spring that fits outside of the spring seats can be safely installed to improve vehicle ride quality. Who is right?

Technician A says leaf spring service often involves spring assembly or bushing replacement. Technician B says leaf springs are used in many late-model pickup trucks because they cannot break. Who is right?

A vehicle is brought into the shop with a possible ball joint problem. Technician A says if the ball joint is dry, it has collapsed inward and will feel hard to the touch because of a lack of grease. Technician B jacks up the vehicle, moves the control arm and joint with a long pry bar, and checks the movement and play against manufacturer specifications to check if the ball joint is worn. Who is right?

The fastening of most modern ball joints with the vehicle’s suspension components is accomplished with:

A vehicle’s front tires are worn. Technician A tells the vehicle owner that worn control arm bushings may have caused this problem. Technician B tells the owner that stiction between suspension rubber bushings and metal parts must be maximized for the best system performance. Who is right?

Strut assembly service is being discussed. Technician A says the strut shock absorber can be replaced when faulty in many strut assemblies. Technician B says automakers recommend removing the upper spring seat during reassembly of the strut. Who is right?

A vehicle’s ball joints have been replaced. After performing this procedure, Technician A says the vehicle should be test-driven immediately before further adjustments are made. Technician B says the vehicle’s wheel alignment should be checked and accurately adjusted before the vehicle is test- driven and then released to the owner. Who is right?

A scan tool reading data and trouble codes from an electronic suspension system can find problems in all of the following parts EXCEPT:

. A vehicle 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?

. An electronically controlled magnetic shock has gone bad and is displaying a trouble code. Technician A says to pinpoint test the unit and wiring before replacement. Technician B says any suspension trouble code will have an accompanying steering system trouble code in an electronically controlled system. Who is right?