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2001 Mack

Trucker81

Entry posted by Trucker81

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01 Mack ch613 e7 427, lighting bolt on dash give me a code of 3-4-engine position sensor so I changed and it didn't help. Started surging in high range when I had accelerated all the way to the floor if u let up a little it was fine. After a few days if driving it totally went I to a derate mode where my power has been cut way back. Please help.

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Trucker81

Trucker81 0

Posted

I have put a new fuel pump on it,front cover on motor, new dampner and the cam gear and crank gear look to be in good shape. Also fixed manafold leak.

slingblade

slingblade 30

Posted

check all grounds to motor/chassis and batt

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