Keith Browning Posted May 7, 2017 Share Posted May 7, 2017 In comes a 2015 F450 mason dump owned buy the City of Orange here in NJ. Complaint: white smoke and regeneration message keeps coming up on the message center. No mention of the check engine light that was on. Typical. So I drive it, runs okay but after a few minutes I started seeing moderately heavy white smoke. Hook up IDS and pull P20EE (SCR NOX Catalyst Efficiency Below Threshold (Bank 1) ) and P04DB (Crankcase Ventilation System Disconnected ) from memory. Passes KOEO and KOER. I began with the diagnostics for the DTC's After performing inspections of the turbo, disconnecting the downpipe and the DOC, removing NOx sensors and inspecting I found little to no evidence of oil as I was expecting. A LOT of carbon however. I noticed the tailpipe looked oily and had a lot of dirt stuck to it. I'm thinking turbo - right? Engine oil level 3 qts over fill, oil drain plug over tightened to the point I needed a ratchet to remove it all the way and the oil smelled funky. When I pulled off the crankcase vent and oil separator I discovered that oil sludge was blocking the oil drain and there was quite a bit of oil carry over in the CAC. I cleaned out the soft sludge, replaced the vent and performed an oil and filter change. Road tested and the smoke was instantly gone. I want to perform a couple of manual regens and see if the aftertreatment catalysts clean up and the numbers look right. This goes to show that sometimes it's not what you expect. Keep looking! 12,144 miles 2295 engine hours (57,353 equivalent miles) 1344 idle hours Unknown number of oil changes - suspect 2 Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted May 8, 2017 Share Posted May 8, 2017 Damn.....that truck averages 5 MPH and is driven 9 miles per every hour idled!!!!! Quote Link to comment Share on other sites More sharing options...
RyanG Posted May 8, 2017 Share Posted May 8, 2017 Don't worry Keith, I'm sure an engine is in the not too distant future when the rod bearings let go. Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted May 13, 2017 Author Share Posted May 13, 2017 Update on this truck is that I cleaned out the openings for the breather and installed a new one, changed oil and filter, cleaned out the CAC system and performed several manual regenerations. The smoke is gone however the P20EE is now pending again after a couple good road tests. I monitored the NOx sensors and there does not seem to be much NOx reduction going on. There is a notable drop when the DEF injector is active but it's not enough. Quoted a new catalyst assembly and sensors. Change you fucking oil! Side note: cats are backordered due to excessive demand. See you next month. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.