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International Automotive Technicians Network
Re: Navistar ESC air solenoid codes
Posted to HD/Fleet Forum on 2/4/2020

I second this. Whoever unfitted the truck utilized those solenoids, with or without Altec's knowledge, in lieu of adding additional aftermarket solenoids.

There should be a tag in the driver's door/door jamb to identify (among other things) who did that actu... Login to read more.