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 08 Dt466 Twin EGR cooler		  New Topic  Reply to Topic
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Bluenozer
Top Member

Canada
644 Posts
Posted - 12/04/2020 :  09:00:46 AM  Show Profile  Reply with Quote
Regen stage 1 and 2
VGt over duty
unable to build EBP
Found EGR valve broke( the head of valve fell off) so stepper motor was still moving and giving feed back to ECM like it was working properly
All trouble shooting lead to replacing DOC and DPF very costly, be the reason why cummins had an EGR delta P sensor
I noticed that intake manifold temp was not low(egr closed) while trying a regen LAF eh

Mechan1c
Top Member

USA
853 Posts
Posted - 12/04/2020 :  4:13:15 PM  Show Profile  Reply with Quote
Thanks for the heads up. I've got 27 of these that have to go 2 more years...
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TRex
Senior Member

89 Posts
Posted - 12/11/2020 :  10:31:57 AM  Show Profile  Visit TRex's Homepage  Reply with Quote
See a lot of problems caused by the EGR valve, usually power complaints. They hardly EVER code, EPA 07 or EPA10. Same with Intake Throttle Valves. I think an argument could be made for making them a maintenance item. Especially the EGR Valve.
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