07 870 Jake issues

[Chamberpains]

If this is in an International then that is the correct position "stage" sequence for the jake. Top =3 (high) Middle=1 (low) Bottom =2 (middle)

Cummins quickserve has the test procedure to ohm out the solenoids. Also make sure your harness is make good contact at the solenoids. They are just push on connectors. Also check to make sure the passthrough connector isn't filling up with oil internally. Pull it apart at the head and have a look. If it is, you can clean with brake clean and seal it up with high temp RTV.

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