Shouldn't get any chunks in the lines since there is a filter right next to the DEF pump. Filter should be changed every 200k miles.
Cascadia doser valve problems
Discussion in 'Schneider' started by centralmi, Aug 19, 2016.
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My doser valve is the valve that injects fuel into the exhaust stream prior to the DOC and DPF.
You are talking about the DEF injector. Big difference. But this is what I get for trying to help. Good luck with the problem. -
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The problem is as I have seen it; alot (not all don'get butt-hurt) of techs plug in the laptop, pull codes, replace part. They don't know why. Service Mgr on their arse to perform.....repeat as necessary. Theory and common sense ignored in exchange for profitability. Insist, yes talk to the owner if need be, on putting the BEST DIAGNOSTITION they have on the job. Or, go elsewhere.
exracer941 Thanks this. -
Could be a fuel supply/ pressure problem to the Doser block/valve, could be it is getting contaminated with coolant from the engine or excessive soot due to EGR valve problem. Catching the codes would help.
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He's probably one of those guys who idles all the time..................... Right buddy?
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I don't know if it's true, but I had a service writer tell me that if you have got some miles in your truck, your idle percentage sometimes affects whether or not they will warranty emission problems.Scott72 Thanks this. -
Belials,does Cummin or Paccar look at idle % for warranty? -
So....you spend $150K+...pay for a warrantee......and then get "restrictions " on the use of said vehicle. IF...the truck was manufactured in Kommifornicatiounula (whew) I'd believe it. As I understand,Cascadias are assembled in Mehico, y transportado de la Ustados Unidos para vendado.
Yeah...my español sucks....but y'all get it.
Certainly saw a WHOLE LOT DECKED, heading "el norte" on my only trip to Laredo.
I'd have a serious talk about the details re; warantee coverage.
C'mon....lighten up!.
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