Practice question

The cabin heat is adequate when driving but weak at idle in cold weather. What is a probable cause?

  1. A loose body mount
  2. A burned tail lamp
  3. Reduced coolant flow at low engine rpm combined with a marginal or inoperative booster pump
  4. A torn seat cover

Answer: C — Reduced coolant flow at low engine rpm combined with a marginal or inoperative booster pump

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: ASE S1 Body Systems & Special Equipment (School Bus) Practice Questions - ASE S1 - Body Systems & Special Equipment (School Bus) Certification Exam →