How do you know when it’s time to flush coolant? Technicians may have different views on the subject, but Dorman Training Center instructor Pete Meier explains how using a test strip at every service is a surefire way to get an accurate picture of the coolant’s health.
All of the following could cause bump steer EXCEPT:
A) Incorrectly mounted steering rack
B) Worn idler arm
C) Worn center link
D) Incorrect camber
Technicians debate using the min/max function of a digital voltmeter to test the battery and charging system on a customer’s vehicle to determine if the alternator has failed. Who is correct?
Learn why it’s not a bad idea to charge a little more for the hassle.
Technicians discuss battery testing, one says open circuit voltage of less than 10.5 volts indicates a bad battery, while the other says that a reading of 12.5 volts indicates an 80% state of charge. Who is correct?
On a hybrid vehicle’s air conditioning system that utilizes a high voltage electrical compressor, can only the oil specified by the vehicle manufacturer be used in the compressor or is PAG oil acceptable for use in an electric vehicle’s compressor?
Technician A is preparing to recover the refrigerant from a customer’s vehicle. What are the steps he should take when performing this service?
Technician A completed a compression test, noting high readings suggest an exhaust restriction, while Technician B says the test checks volumetric efficiency.
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