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Cruise set at 110 km/hour and tranny hunting gears?

755 Views 2 Replies 2 Participants Last post by  Sal1978
I have a P2457 code now for 2 months as I’m waiting for a EGR actuator that’s been on back order from my dealer . The truck today was noticeably gutless and getting worse. Flat highway no wind not pulling truck had trouble going 110 km hour. I could barely pass people. Sometimes it rips a bit sometimes it barely responds if u mash pedal to floor at highway speed. Is this normal?
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Does not sound right, mine will hold 110 easily on cruise without dropping gears, If you are foot driving it will drop to 8th sometimes but i have never had to floor it to pass. The roads over here are far from flat.
No codes on dash other than occasionally a P2457 comes up dpf pressure differential
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