ASE A4 Suspension & Steering practice test
The A4 test blends hands-on steering and suspension repair with alignment theory — camber, caster, toe, and thrust angle reasoning decide a big share of the questions. Practice both the diagnosis and the geometry here.
Technician A says a shock absorber showing a light film of dampness on its body must be replaced. Technician B says that in a manual bounce test, the body should stop moving within about one to two rebounds after being released. Who is correct?
How the A4 test works
40 scored questions
+ ~10 unscored research questions
60 minutes
computer-based, at a test center
$62 per test
plus one $34 registration fee per order
Valid 5 years
then a shorter recertification test
ASE does not publish one universal passing percentage; the passing standard is set by test. TorquePrep uses 80% as a conservative practice target, not as an official ASE cut score. The certificate is issued once ASE verifies your required work experience.
What the A4 test covers
The official task list for A4 Suspension & Steering breaks down into these content areas — the practice bank above draws from all of them:
- Steering system diagnosis and repair — play, wander, memory steer, EPS and hydraulic assist
- Suspension diagnosis and repair — ball joints, control arms, bushings, springs, and dampers
- Wheel alignment — camber, caster, toe, thrust angle, SAI, and pull/drift diagnosis
- Wheels and tires — wear patterns, vibration, balancing, and TPMS
Frequently asked
- How many questions are on the ASE A4 test?
- The A4 test has 40 scored questions plus about 10 unscored research questions, with a 60-minute time limit.
- Do I need to memorize alignment specs?
- No — the test asks you to reason with the angles: what excessive toe does to tires, which angle causes a pull, what SAI and included angle reveal about bent parts. Specs come from service data in real life.
- Is TPMS on the A4 test?
- Yes, tire pressure monitoring is part of the wheels-and-tires content: sensor types, relearn procedures, and service precautions.
Exam length, timing, fees, and content areas checked September 11, 2026 against the official ASE test table and ASE study guides.