Search results

  1. J

    Not starting.

    very rare you'd fry a bcm changing an intake, especially with the battery cable off. before you go get one, check that those modules you can't talk to with the scanner have power and ground at the correct pins in their plugs. this sounds like a missed ground wire somehow.
  2. J

    Rear end gone???

    ouch.. but yes, this is just how the all time awd transfer case works. you have a parking paw in the transmission, not the transfer case. so paw lock the output shaft of the transmission in park. but the transfer case isn't locked. once you took the drive shaft off the front, it is basically...
  3. J

    Tire Noise Reduction -- Any Experiences with Fender Liner and/or Fenderwell Treatments?

    in my C6 I bought a kit they sell. it had a bunch of large sections of dynomat and then a full foam core insulation kit. took like a week to install. in the end, I was honestly still disappointed. that sent me down the path of tire noise, but I never found a good way to handle that...
  4. J

    IMPORTANT: The Chronicles of Low Oil Pressure by 07burb

    I think this was the video.
  5. J

    Oil pressure drop 2007 Tahoe 5.3

    I wish I could find it, someone posted a video on here of a cam bearing, pan off looking up you could see the bearing had moved and was showing enough to uncover the oil passageway. that would be a major internal pressure leak. so my 2 cents on oil pressure, atleast what makes sense to me. if...
  6. J

    Slight miss at idle, poor MPG, sooty exhaust pipe, No codes. 250K

    yes, forgot about maf, I cleaned mine and could see it idling in a different part of the airmass vs rpm map and I don't believe it's ever had anything but a paper filter in it. o2 are a good idea too, as they foul out over time, especially from how much oil these things suck thru the pvc...
  7. J

    Slight miss at idle, poor MPG, sooty exhaust pipe, No codes. 250K

    sounds like a case of E% drifting high when running normal fuel.
  8. J

    AC Low Pressure / Clutch Cycling Switch, O-Ring?

    most people just buy the assorted kit of the green ac o rings and match it up. you might have to stop by a gm parts dealer for one specific o'ring
  9. J

    2013 Yukon Denali Hybrid AFM Delete won't pass emissions

    tell the tuner if he's using hpt tuners to license the tune, and then change the drop down box for afm from whatever it is to what it's not now.. reflash the truck and go test drive it. what is in the box doesn't matter, just change it to the other thing. depending on the version of hptuners he...
  10. J

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    wow all that is on top of the battery?
  11. J

    2013 Yukon Denali Hybrid AFM Delete won't pass emissions

    hptuners will disable afm and all monitors will set. I have done it on my 2011. so don't listen to anyone that says a hybrid can't be done. worse case you buy hptuners, 2 credits. change one drop down box and then sell hpt if you don't need it. or find a local that has it and willing to do...
  12. J

    IMPORTANT: The Chronicles of Low Oil Pressure by 07burb

    you have the high volume pump and it still has low pressure. huh that's interesting. usually that's the cover. I doubt throwing a bunch of different o rings at is will help but let us know how it goes. there's a video somewhere of a spun cam bearing, that's about all they makes sense to me...
  13. J

    11 Denali Hybrid

    if it's not moving while running that should definitely be a stuck lifter. but you should also be able to wiggle the rocker by hand easier than other ones. there's a small spring on top of the afm litter that keeps the pushrod in place while the lifter is collapsed in 4 cyl mode. but you should...
  14. J

    11 Denali Hybrid

    I thought you meant #7 had no movement when cranking it running? do you mean by hand, just wigging it? if so you could be on the lobe of that one, try spinning the engine over. by hand is probably the easiest since these things crank so fast. on a side note if you're going to keep it...
  15. J

    Oil pressure drop 2007 Tahoe 5.3

    confirm lack of oil pressure is real. if so, replace with high volume aftermarket pump. drive till blows up or you get sick or it. whichever comes first haha. bit confused thou, is the low oil code being set all the time, or only sometimes? have you been driving it around with it saying pull...
  16. J

    11 Denali Hybrid

    try not to drive it very long with it stuck. it can eat up the cam lobe. I didn't have one stuck, but I followed this guys disabled. might be worth a shot to release it.
  17. J

    11 Denali Hybrid

    if you can get it unstuck and then disable it. you might get away with it. worth a try to me. others think you should never short cut and do a full delete kit. the hybrids have a different cam than the non hybrid ones. if you go full delete, see if you can find one with a grind for the hybrid...
  18. J

    Does my radiator have an engine oil cooler?

    tranny fluid (red) runs thru the passenger side radiator end tank. the radiator has tons more cooling capacity under all but the most extreme conditions and water to fluid heat transfer is very effective. a small core inside can knock down Temps much better than air in front of the radiator. I...
  19. J

    2013 Yukon Denali Hybrid AFM Delete won't pass emissions

    wait.. you did a put non afm lifters in and not turn it off in the tune but still use the plug in to the obd2 port dongle thingy? I've not used those, but thats now how I understood those to work. I thought once you removed the vlom solenoids you needed to turn it off in the tune and also...
  20. J

    Oil Cooler Adapter w/Thermostat

    are you adding this stat block to your c5? I have seen pics of the oil pressure block with a sensor in it. was never sure if it was oil pressure or not, didn't know they put temp in there. they switched to a in pan level/temp by my year. I'd love to compare the 2 location Temps just out of...
  21. J

    just randomly dies

    I think this is probably correct. what feels like rich is probably lean. you'll need a scanner with live data like fuel pressure and o2 reading to confirm
  22. J

    just randomly dies

    that's amazing and horrible all at the same time.
  23. J

    Does my radiator have an engine oil cooler?

    atf is in the cooled side of the radiator, it should never hit 230deg or you'd see really high Temps in the cyl head Temps sensor. oil is in the hot side, but 250deg oil is fine, it's actually very hot right after the pump compresses it to 60 or so psi, and then the filter and housing are...
  24. J

    Does my radiator have an engine oil cooler?

    I can tell you from personal experience with oil cooling, the end tank oil coolers work very well. you'd need a huge front mount to match the cooling. enough that you'll end up blocking air to the radiator anyways. nice neat package. in a high end race application the stock lines are a bit...
  25. J

    Oil Cooler Adapter w/Thermostat

    improved racing is big on the corvette world. high end but also big money surff. their oil cooler kit for my car is little over 1000$. corvettes have a physical oil temp sensor and for some reason they think if they don't see oil Temps in the range that water boils at, they think condensation is...

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