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  1. jbyler

    Factory Bose 6 disc changer, in dash stereo REPAIR

    I have a 2003 Yukon Denali with the same problem, including my single cd unit not working either. Going to be watching this thread to see if anyone comes up with a fix. :( I do want to install a rear camera for ease in backing up to a trailer. I have sirius/xm/OnStar already/built-into the...
  2. jbyler

    My 'Hoe smells like gas

    I'm having the same issue - that began just after getting the Denali back from the machine mechanic... I'm due to take it in soon, so I'm going to have him check it out. There's also a vibration of some sort that happens when the engine turns over. Something may be loose from all of the work...
  3. jbyler

    Sunroof Dead

    I think the child safety lock only works for the back windows and are only operable on driver door buttons. I just tried my sunroof and it works even if lockout of back windows is engaged. :(
  4. jbyler

    Tahoe going insane? Weird intermittent issue.

    I have a 2003 Denali and it drove fine over a high/low winding highway...then on the way home, it would barely limp uphill and then I could coast going downhill. I replaced all spark plugs twice with different respected brands, replaced the ignition coils, replaced the ECU (sent it to this...
  5. jbyler

    P0300

    I have a 2003 GMC Yukon Denali 6.0 V8. Just had the ECM unit sent to ACE in Florida > they said it was friend and irreparable and couldn't fix it, so bought a refurbished one from them. Mechanics installed the new one (they also properly removed it), replaced all of my fuel injectors (AC...
  6. jbyler

    Rough Idle

    So, the issue continued on until one day, the engine basically went into limp mode. My friend was close by and we limped to his house, hooked up the reader and it said ignition failure code. We took the coil off and it had shorted and melted... We ran down to the auto parts place, got a new...
  7. jbyler

    Rough Idle

    Sparky_69 (and Bigbertha78) - my 2003 Denali is at around 500rpm at idle and as you wrote, also gets worse if the a/c is on. When I press on the gas pedal, it sputters a little and lurches and sometimes feels like it's going to die, which has me thinking maybe it is fuel line/related... I'll...
  8. jbyler

    Rough Idle

    I'm having the same issue - rough and low idle - on my 2003 Denali. It's at the shop now but I was wondering if BigBertha78 has found the issue yet... If so, can you please post? Thanks so much... The shop thinks it's electronic (and I also recently got a "reduced engine power" code with the...
  9. jbyler

    Decision to rebuild top half or replace engine-I'm all ears

    Took my 2003 Denali in (202,000 highway miles, impeccably maintained) due to engine light>code was for misfires at idle only. No compression test was done, but mechanic replaced ignition wires and coils for #2 and #6. Five days later, engine light went back on and this is where I am today...
  10. jbyler

    What to upgrade at 160K?

    Thanks so much, Doug. (it's the owner of the shop who doesn't do the work anymore -- has someone else doing the work and he has so many cars coming in maybe at age 69 he doesn't remember them all, but I hear ya!!) This is GREAT information for me!! Thank you so much! Can't wait to print it...
  11. jbyler

    What to upgrade at 160K?

    That's a great list of stuff to update. I have an '03 Denali. I recently had 3 codes on the check engine light so replaced the 02 sensor (but I just read here that there are two 02 sensors?). Then the light came back on and it read "PO420" catalytic converter "bank 1". don't know if that's...
  12. jbyler

    strange brake noise - has new pads & rotors

    I have had success now fixing the scraping sound. Mechanic took apart the rear axles which had bad wear pattern/grooves and bad bearings (had a slow leak in the differential), AND the parking brake pads were worn VERY unevenly, so replaced the two rear axles, bearings & the whole shebang...
  13. jbyler

    Parking brake/oil on pad/high pitched squeal

    I have a 2003 GMC Yukon Denali. A high pitched squeaking noise that just didn't sound like the brakes started happening after I had my rear brakes replaced (ceramic, have been disassembled twice to ensure no problems). I stayed on the mechanic...again, they checked the brakes, nothing, but...
  14. jbyler

    strange brake noise - has new pads & rotors

    I have a 2003 GMC Yukon with the same exact issue. I had new rear brake pads installed and that same noise you wrote about occurs for me. They've taken the brakes apart twice now, see nothing abnormal, no debris, etc. They said that they installed ceramic brake pads because they are quieter...

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