Search results

  1. 02YukDenXL

    Front RH Axle Seal HELP

    Good morning folks, So my front right hand axle seal has been leaking. It's been oozing from the 6 bolt flange (Photo #1, cv axle removed, flange only) between the axle and cv axle shaft. It's an '02 Yukon XL Denali AWD. The boots are worn on the cv axle so that's completely out as I'm...
  2. 02YukDenXL

    LED Fog Lights

    Hey guys, I've been wanting to replace my fog lights with a set of LED fog lights but I'm having trouble finding anything that would essential be a direct replacement without having to modify the new lights or existing mounting bracket. Has anyone done this with they're yukon denali before...
  3. 02YukDenXL

    Bad bad bad BAD misfire!

    Is it the LQ4 motor?
  4. 02YukDenXL

    Where have you guys mounted your backup camera?

    I have a hopkins smart hitch system. Its on my license plate but it doesn't look bad at all. Great for hooking up to a trailer by myself. And making sure no one is behind me (I have three kids).
  5. 02YukDenXL

    Rough Idle HELP!

    How long have you had the issue? Have you done any work to it? Brought it to a mechanic? Etc?
  6. 02YukDenXL

    Rough Idle HELP!

    I replaced the MAP sensor with an OEM ACDelco sensor about 6-8 weeks ago. Connector and wires near the sensor looked intact and in reasonable shape.
  7. 02YukDenXL

    Rough Idle HELP!

    So I've been riding out this misfire lately. I haven't had time to work on the truck (We just moved and have 3 kids so its been a bit crazy). Brought the truck in for an oil change to a newer mechanic. I've been going to him for about 6 months now. I ditched my old mechanic after he jerked...
  8. 02YukDenXL

    Rough Idle HELP!

    At times I've also been suspicious of my computer. Is it possible the computer could be bad and cause a misfire?
  9. 02YukDenXL

    Bad bad bad BAD misfire!

    Any update on what your issues was bro?
  10. 02YukDenXL

    Please read and help

    itsbeen1, did you find out what was wrong?
  11. 02YukDenXL

    Rough Idle HELP!

    I won't have time to pull the O2's and test the back pressure for a week or so. Too much going on with my professional engineering exam at the end of the week and moving into a new house this weekend. Good thing is the new house has a two car garage [emoji106] It'll be getting some good use.
  12. 02YukDenXL

    Rough Idle HELP!

    I'm not just going to remove my cats completely. If they're clogged then I'll be replacing them.
  13. 02YukDenXL

    Rough Idle HELP!

    I ordered some Aero Kroil on Amazon to help free up the O2 sensors. I'm gonna buy a back pressure gauge to test my cats. If I had one clogged cat, wouldn't the misfire only happen on one side? What are the odds that both cats are plugged?
  14. 02YukDenXL

    Rough Idle HELP!

    Initial fuel pressure spike with KOEO was 57psi for a second or two before quickly settling off at 52 psi. Idle fuel pressure fluctuated between 49-50 psi. Fuel pressure in drive with foot in brake at 2100 rpm approximately 55-56 psi.
  15. 02YukDenXL

    Rough Idle HELP!

    I saw a YouTube video with those tests the other day. I'm itching to hookup my new gauge and check things out. I'll definitely be doing this tomorrow. Thanks man!
  16. 02YukDenXL

    Rough Idle HELP!

    @SLCHOE Funny you say that. I bought a fuel pressure gauge today. I don't trust a word of the three mechanics I've previously brought the truck to. Did I mention the first one told me to ignore it?? (Wtf). Never going back to him. I'll check fuel pressures and then I'll investigate the O2's. I...
  17. 02YukDenXL

    Rough Idle HELP!

    It feels like it's missing more than at just idle. My throttle is fly by wire, not cable. I don't think I have a iac. I'm gonna look into the tps once I have a chance. I have a coworker who has an obdII USB connector and software for a laptop. I'm gonna try and plot fuel trims and rpm and see...
  18. 02YukDenXL

    Rough Idle HELP!

    Keep in mind I have had no codes this entire process.
  19. 02YukDenXL

    Rough Idle HELP!

    O2 sensor voltages at idle. Both videos were taken after I drove for about 45 minutes this morning.
  20. 02YukDenXL

    Rough Idle HELP!

    Short and long term fuel trims banks 1 & 2 at idle
  21. 02YukDenXL

    Rough Idle HELP!

    I'm no impressed by the mechanics I've been to. I'll list my fuel trims in a few hours. I did unplug the maf and it did run better for a few minutes before returning to the same drive ability issue/shudder/misfire/etc.
  22. 02YukDenXL

    Rough Idle HELP!

    I've been told by one of the three other mechanics I've been to that my fuel pressure is good but I should check it myself. I never replaced the other O2 sensor as I was told a bad sensor would throw a code. Already cleaned the ever living crap out of the throttle body. Not sure about the PCM...
  23. 02YukDenXL

    Rough Idle HELP!

    Gauge and scan tool readings at idle...
  24. 02YukDenXL

    Rough Idle HELP!

    So I've been riding this out for a few months now. Still no codes. No real change to the situation. My misfire/shudder hasn't gone away and has ever so slowly felt like its been getting "worse". That might just be me being OCD. I bought a vacuum pressure gauge after reading thru my Haynes...
  25. 02YukDenXL

    Misfires...can't figure it out...

    I have the same issue on my 2002 yukon xl denali (6.0L). But I don't have any codes whatsoever. I have a laundry list of things that I've done. Essentially what you have listed and then some. I've brought it to three different mechanics. Ugh. Any updates?

Forum statistics

Threads
129,127
Posts
1,810,892
Members
92,215
Latest member
mitchievu

Latest posts

Top