cm870 ISX Turbo Screech Monroe/Charlote, NC
04-07-2023, (Subject: cm870 ISX Turbo Screech Monroe/Charlote, NC ) 
Post: #7
RE: cm870 ISX Turbo Screech Monroe/Charlote, NC
(04-07-2023 )wrenchwabbit91 Wrote:  i had this problem on an 870, turned out to be the pressure regulator in the vgt controller. i would check what the others have posted first, i think the controller was $1200... the ecm was commanding 70% to the actuator but it was maxed out at full air pressure.

even a bad actuator will not cause the turbo to squeal.


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RE: cm870 ISX Turbo Screech Monroe/Charlote, NC - Rawze - 04-07-2023



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