GM Blazer/Jimmy/Typhoon/Bravada 1983-1993 Repair Guide

Charge Air Cooler


The charge air cooling system is used on MFI-Turbo engines in order to introduce a denser air/fuel charge to the combustion chambers. The system is equipped with its own radiator, electric coolant pump (mounted near the charge air cooler radiator) and a charge air cooler (located in the air stream mounted to the throttle body). For more information regarding this system, please refer to General Information & Maintenance of this guide.


See Figure 1

  1. Disconnect the negative battery cable, then drain the charge air cooling system.

Click image to see an enlarged view

Fig. Fig. 1: Exploded view of the charge air cooler mounting - 4.3L MFI-turbo engine