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  1. P0401 Code - EGR Air Flow Control Valve

    Greetings, Truck threw a P0401 code at 70k miles. Dealer diagnosed as follows: "Disconnected the air tube at the inlet port of the EGR Air Flow Control Valve and found it did not open completely with the Ignition on. Replacement EGR valve needed and retest." This is not covered under warranty...
  2. Low boost

    So yesterday I was driving a long distance on a slow highway with some traffic (50-60mph) and started noticing the truck was having trouble on cruise control...not accelerating in gear and resorting to downshifting. I used the Tazer's functions to bring up boost and I was only getting 1-3 psi...
  3. 255/80/17 - any downsides?

    Is there any benefit to running the stock 285/70/17 over the skinnier and very slightly taller 255/80/17? Assuming identical tire model/tread. Has anyone made such a direct switch that they can give feedback on?
  4. 34 x 10.5 D-rated?

    Anyone out there run these? I searched the forum and came up empty handed. Found BFG KO2 and Toyo Open Country AT3 as options so far. https://www.discounttire.com/fitmentresult/tires/size/34-10.5-17?page=0#product-code-114431 My stock Majave Wildpeak take-offs are getting old and I'd like to...
  5. High mileage Falken Wildpeak A/T3W in snow

    A decently long drive in snow this morning confirmed what I was worried might occur: the stock 285/70R17 Wildpeaks no longer have the same traction they did for the first two winters. Here is the current state of my tires: Miles driven on tires: 33,723 Tread depth: 9/32" in the middle 11/32"...
  6. GT Radial IcePros

    Does anyone have experience with the GT Radial IcePro SUV 3 or the IcePro LT3 snow tires? My stock Falken Wildpeaks are getting up there in miles and on the first snowfall this year I'm noticing the traction isn't what it used to be. A bit budget constrained this year, and I noticed that the...
  7. Cowl Lights for serious snow?

    Hi there, I've got two questions: 1) Do cowl lights impact fuel economy? I'd guess no but aerodynamics can be a complex and counterintuitive thing and I'm hoping a fellow data nerd out there has measured the impact ?. 2) Recommendation for a good pencil (spot?) light with a yellow tint? Prefer...
  8. Mystery Power

    I had power on my diesel when I didn't expect any and am scratching my head as to where it came from. Here's what happened. 1. Disconnect main battery ground at post (only, no wire separations) and isolate. Disconnect both front and rear body grounds on the passenger side of the engine bay and...
  9. diesel engine noise

    Idle curiosity question. At low throttle like in a neighborhood (or stopped) the gen 3 ecodiesel makes a pretty good injector pop racket, kind of like a Powerstroke. Roll on just enough additional throttle and the racket really dies down to almost nothing and the engine is really quiet. Step on...
  10. diesel oil filter tips?

    Did my first oil change, and despite my best effort with towels jammed below still had a bit of oil spill out of the crazy 45 degree oil filter housing and down all the shiny new parts. Any tips on how to avoid this in the future? Also holy hell that is the worst *#$%ing clearance I have ever...




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