Keith Browning Posted October 20, 2008 Share Posted October 20, 2008 Since earlier this year I have replaced seven DPF's including one this morning. One was replaced because of raw fuel contamination but the others were for sooty tailpipes. Only one of those had a driveability concern and needed additional repairs. Are you guys seeing DPF's failing for no apparent reason? What are else you finding wrong with the trucks? Quote Link to comment Share on other sites More sharing options...
DwayneGorniak Posted October 20, 2008 Share Posted October 20, 2008 Yup, for black smoke. I've replaced about seven or eight as well. Half of them had Airaid cold air air breathers. The others were just junk I guess. Quote Link to comment Share on other sites More sharing options...
jaysonfordtech Posted October 20, 2008 Share Posted October 20, 2008 We have seen several for sooty tailpipes, but do not sell it because we are way up on our 126 because of bedplate and headgasket repairs. Customers don't seem to notice the black pipes. we have replaced 2 or 3. One of them due to oil contamination due to engine failure, one for black pipes and one for mil on and high backpressure. Quote Link to comment Share on other sites More sharing options...
Bruce Amacker Posted October 20, 2008 Share Posted October 20, 2008 I feel the substrate material the DPF is made of may not be up to the rigors of typical truck use. The cutaway DPF I made has a custom foam-lined case and has foam between the two halves of the cutaway as well. It has traveled back and forth across the country several times for classes and the DPF material has broken apart into several pieces already from the typical bumps of shipping. /forums/images/%%GRAEMLIN_URL%%/frown.gif It's a learning curve the mfr's will need to adapt to. /forums/images/%%GRAEMLIN_URL%%/coffee.gif Quote Link to comment Share on other sites More sharing options...
Steve Mutter Posted October 20, 2008 Share Posted October 20, 2008 I have replaced 3 of them for puffing black smoke,I did that tsb for crap in the tail pipe and could not find anything on all 3 of them,just replaced the filter and they are fix so far Quote Link to comment Share on other sites More sharing options...
DieselD Posted October 23, 2008 Share Posted October 23, 2008 I have done several as well.... Quote Link to comment Share on other sites More sharing options...
fjubain Posted November 21, 2008 Share Posted November 21, 2008 Ive replaced my first one yesterday for black smoke on accel and black soot at tail pipe, no driveability concern at all, cured it. Quote Link to comment Share on other sites More sharing options...
DamageINC Posted November 21, 2008 Share Posted November 21, 2008 I've replaced 2 due to severe coolant contamination from wiped out Horizontal EGR coolers. I just separate the exhaust and peek in there with a light - it usually stains the whole lowermost inch or so (sometimes even deeper) of the entire substrate block in there. Both times, hotline insisted that ANY visual contamination or damage to the DPF *WILL* result in premature failure and won't comply to emissions standards, and therefore replacement is required. Cha-Ching. On another note, both of then that I replaced, the nipple for the DPFP sensor broke off in the bung even with a ton of heat. However, I found that a simple 1/4" male (with male threads) air-line coupler fitting screws in and seals perfectly, and the DPFP hose slides good 'n tight over the fitting. Cost of the air fitting - .72cents Cost of the DPFP nipple - $70-something dollars COST. Dave 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.