recent trend of DPFs being replaced (suspect cracks in honey comb)
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Joined: Jul 2013
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recent trend of DPFs being replaced (suspect cracks in honey comb)
theres been an increase in DPF replacements lately on this forum....surprisingly al of of the replacements are 17 and newer.
Im wondering is these cracks are occurring because of the need for a cool down period before shutting of the engine.
to give you a sense of how how these DPFs get.....after a short 45 minute drive yesterday....I noticed my DPF at 105% ...but not in regen.....I gunned the truck to make a light change and the back pressure triggered a regen.....within 60 seconds my dpf went from 105% to 21%. that was a surprise to me since static operator commanded regens teak over 30 minutes and the % drops very slowly.
so I am beginning to wonder if a cool down period is needed to prevent DPF honey comb cracks.
Im wondering is these cracks are occurring because of the need for a cool down period before shutting of the engine.
to give you a sense of how how these DPFs get.....after a short 45 minute drive yesterday....I noticed my DPF at 105% ...but not in regen.....I gunned the truck to make a light change and the back pressure triggered a regen.....within 60 seconds my dpf went from 105% to 21%. that was a surprise to me since static operator commanded regens teak over 30 minutes and the % drops very slowly.
so I am beginning to wonder if a cool down period is needed to prevent DPF honey comb cracks.
Cargo Master
Joined: Apr 2021
Posts: 2,017
Likes: 750
From: Texas
theres been an increase in DPF replacements lately on this forum....surprisingly al of of the replacements are 17 and newer.
Im wondering is these cracks are occurring because of the need for a cool down period before shutting of the engine.
to give you a sense of how how these DPFs get.....after a short 45 minute drive yesterday....I noticed my DPF at 105% ...but not in regen.....I gunned the truck to make a light change and the back pressure triggered a regen.....within 60 seconds my dpf went from 105% to 21%. that was a surprise to me since static operator commanded regens teak over 30 minutes and the % drops very slowly.
so I am beginning to wonder if a cool down period is needed to prevent DPF honey comb cracks.
Im wondering is these cracks are occurring because of the need for a cool down period before shutting of the engine.
to give you a sense of how how these DPFs get.....after a short 45 minute drive yesterday....I noticed my DPF at 105% ...but not in regen.....I gunned the truck to make a light change and the back pressure triggered a regen.....within 60 seconds my dpf went from 105% to 21%. that was a surprise to me since static operator commanded regens teak over 30 minutes and the % drops very slowly.
so I am beginning to wonder if a cool down period is needed to prevent DPF honey comb cracks.
but on the highway if i stop for a rest area or short stop, i leave it running at elevated idle, even if its just a refuel.
i have notice oil temps come down pretty fast tooling through the neighborhood
either way i tend t let it idle a couple minutes before shutting down if its a long stop
my next Toy is an idash or similar. driving with PC plugged in is distracting
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