Emergency Care and Transportation of the Sick and Injured ...

c. If air pump is belt driven, it uses serpentine or V-belt. d. Air pumps may be operated by an electric motor. i. Air pump is turned on and off by ECM. C. Common Air Injection System Failures. 1. Older systems failed more frequently. a. More mechanical parts. 2. ECM replaced vacuum-operated parts. a. Reduced amount of failures. b. ................
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