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Raptordude

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About Raptordude

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  • Birthday 07/21/1998

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  1. I'm not sure what you're using to scan, but to look at the fuel trims you'll need a good scanner that can show you live data Sent from my iPhone using Tapatalk
  2. The upstream o2 sensors are the only ones that will affect fuel trims. The downstream ones only monitor the catalytic converter. If you're having a fuel trim issue across a whole bank, it's either an upstream o2 sensor or intake manifold gaskets Sent from my iPhone using Tapatalk
  3. LBZ reliability

    The only downside to the L5P so far is that they can't be tuned, and therefore can't be deleted. Also, I'm not super familiar with the Cummins engines, but I am friends with the guys at a local diesel shop and they said the 6.7 cummins are known to blow head gaskets. They said the 6.7 is basically a bored out 5.9 block, therefore the gap between the cylinders is very small. Even with head studs they like to blow. The heads need to be o ringed and some guys even tap out the block to get thicker head studs in to lock the headgaskets down Sent from my iPhone using Tapatalk
  4. LBZ reliability

    Without double checking, I believe the 2008 was the LMM, not the LBZ. You wanna stay away from that, they were the first duramaxs equipped with a DPF, which is the big bad guy in diesel emission controls. Also GM went bankrupt around that time, so they cheaped out on a lot of stuff. The LBZ was 06 & 07. The later 07 model LBZs are good motors. The older LB7s and LLYs aren't so good, the LB7s are known to go through injectors and the LLYs are known to go through head gaskets. Sent from my iPhone using Tapatalk
  5. I can't stand newer vehicles that "slip" gears rather than downshift. I like to be in a gear, know I'm in a gear, and pull that gear. Then go to the next. As it should be Sent from my iPhone using Tapatalk
  6. As said, it has 4 forward gears and a torque converter lockup that comes in around 45 mph, which feels like a 5th gear to someone who doesn't know what's going on. 4th gear is overdrive, but also as said I think it depends on your diff ratio whether or not it is actually a true "overdrive" Sent from my iPhone using Tapatalk
  7. My 2000 Chevrolet Silverado 2500

    If you're deleting the cats, get a magnaflow 12909 muffler, or maybe one slightly shorter if you want more noise. I had the 12909 on mine w/out cats and it gave a great tone, not loud at all, but very aggressive. Friendly to the ear Sent from my iPhone using Tapatalk
  8. 02' 2500 With P0440/P0449

    I can't offer any help on the codes, but if you do have to get at the tank, pull the bed off and let the tank where it is. It's much easier that way Sent from my iPhone using Tapatalk
  9. Fuel Pump Part Number

    Not sure if you've done this before or not, but I highly recommend removing the bed vs dropping the tank Sent from my iPhone using Tapatalk
  10. Oil pump failure

    That's surprising. The oil pump also went out of my dad's 2007 6.0 2500 at about 60k. They covered it under warranty. It now has 160k and going strong Sent from my iPhone using Tapatalk
  11. i hope the problem is gone for good, glad you got it sorted out! i know it can be insanely aggravating, but you were patient and stuck with it. and now you know how to diagnose things instead of just throwing parts on left and right haha Sent from my iPhone using Tapatalk
  12. you should be able to put them on at any temp, don't bother heating anything up Sent from my iPhone using Tapatalk
  13. 8.1 vs Duramax engine replacement

    Yeah the later duramax models, 1000ft pounds is easily achievable. The LMLs make around 850 from the factory, and the L5P makes over 900, but cannot be tuned Sent from my iPhone using Tapatalk
  14. 8.1 vs Duramax engine replacement

    It is studded and deleted, he's a diesel mechanic. And his truck went a 12.8 in the quarter mile. (It's a single cab 2wd) so its light, that's why. I respect what you have to say, I just don't see anyone getting 1000 ft pounds out of a bone stock lb7 Sent from my iPhone using Tapatalk
  15. 8.1 vs Duramax engine replacement

    There's no way a simple tune will get you to 1000 ft pounds. An lb7 only makes 500ft pounds at the crank stock. There's no way just a tune would yield 1000ft pounds. To put this in perspective, my buddy has an 04 6.0 powerstroke. He has an oversized ball bearing turbo, ported intake manifold, and race tuning. They make 560 at the crank stock, and he dynoed it after his mods. It yielded 730 at the crank after those mods Sent from my iPhone using Tapatalk
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