2004 DT466 questions.. - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 1 (permalink) Old 05-20-2020, 02:23 PM Thread Starter
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2004 DT466 questions..

I have a 2004 4300 rollback with DT466. bought new as o4 but has build date of July 03.

1. currently the hvac system sends air to vent of it's choice. A/c works when selector is on def or ac position, but has no effect on where air comes from. Blend door not sealing completely a known problem. Replace dash control module with new and no difference. (Dealer let me try 2 when noticed they were rebuilt units).

2. Cruise control requires many pushes, first time to activate. (used for bumping idle for Hydraulics). After first use, works fine until truck shut off. Just a switch problem?

3. Possible that timing cover has started to leak antifreeze behind water pump. Just replaced water pump and hoses, but seems to be (seeping, more than outright leak). Understand lots of stuff to remove to replace, is that the biggest hurdle or is there a nightmare under that stuff when you get there?

Truck has 438,000 miles and has been treated reasonably well by one driver. high speed oil pump has been replaced along with injectors, the only real repairs so far. Minor oil leaks but doesn't burn any. Does anyone have a listing of fault codes for dt466's?

sorry long post, but time for more serious tlc. Need a couple more years before we can start taking just the fun jobs...

thanks for any help
Buck (Kessler's Towing)
rollbuck is offline  

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