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Diagnostics and Drivability

AAM Corporate Overview Video

April 7, 2014

Learn more about AAM and the intense focus on quality, operational excellence and technology leadership, as a tier one global automotive supplier.

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Fuel trim analysis & MAF testing

Stopping Lincoln Aviator brake bounce

Latest in Diagnostics and Drivability

STAR connectors like this one are common on many vehicles as they serve as the hub for bus configurations like the one in this vehicle. From a diagnostic stand-point, they serve as a great place to eliminate circuits, one at a time, all in the same location. Much can be determined from the implementing this process in your diagnostic approach of many network faults.

Solved: Jeep Cherokee won't communicate

Brandon Steckler

June 11, 2025

Figure 2 - Baker Electric vehicle

Diagnostics and Drivability

The electrified future of automotive maintenance

June 5, 2025

The cylinder head was removed, and the valve train was inspected. Cylinder No. 3 exhaust valve had excessive stem-to-guide clearance. This allowed the No. 3 exhaust valve to rock along the seat and created an intermittent sealing issue. The cylinder head requires reconditioning and/or replacement. These cylinder heads are a known issue so replacement is prudent.

Solved: A Jeep Cylinder Misfire

Brandon Steckler

May 29, 2025

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Fuel trim analysis & MAF testing

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