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  1. W

    My code, P0758

    Shift sol code I have. My truck is a 2003 Denali with around 170K miles. Symptom #1.....When it throws this code (When it has been sitting and is cold), it won't allow the truck to take off in 1st gear, it feels like its in either 2nd or 3rd gear ( I assume this is some sort of 'safe mode' )...
  2. W

    Best place to buy HID's for my '03 Denali?

    Tired of junk returning from all my online search results for HID kits. I have a 2003 Denali. Where is a solid reputable place or on ebay to buy some HIDs for my truck? Thanks folks
  3. W

    2003 Denali, tranny slip/shift problems at higher RPM range

    I have a 2003 Denali. 130K miles. Tranny shifts great on normal driving conditions. But when in higher RPMs such as to pass a vehicle, etc... my trans slips and wont shift unless i back off the throttle and let it shift then presume my driving. So I would say over 4700RPM it does this. I can...
  4. W

    Where is best place for replacement front shocks? 03 Denali

    Long time no talk. Looking for new shocks for my 2003 Denali. Fronts ONLY! Let me know of some good sellers/stores :) thanks
  5. W

    Want: BOSE door speaker!

    My 03 Denali has a blown BOSE speaker in the passenger rear door! Who has one?
    • wade
    • Thread
    • Replies: 0
    • Forum: Wanted
  6. W

    What fuses are affiliated with my Denali Auto-Ride?

    I was doing some electrical work in the rear of my truck and crossed two wires briefly. Since then, the SERVICE RIDE notification has been on. What fuses are there to check?
  7. W

    Tring to fix my rear HVAC. Hot/Cold change over not happening

    2003 Denali I bought the rear blend door actuator. Still no worky. It doesnt rotate either way when plugged in. When I manually turn the knob itll blow hot or cold depending on which way I turn it. So... why isnt it working, is there a TSB? Bad wire? fuse?
  8. W

    One step close to my seat heater ordeal, please read

    My seat heaters on my 2003 Yukon Denali shut off in 30 seconds everytime (there is a TSB for this). I know the pads/elements are fine, all are replaced. The tsb for the pedal sensor and seat recline sensor has been looked at, and sensors are in correct voltage output. The module is in good...
  9. W

    FS: Adjustable receiver hitch! I have 2 available

    I am selling (2) of these. I am asking $90 each. Heavy duty. No pins or ball.
  10. W

    You guys know where the adj. pedal sensor, seat recliner pos. sensor are?

    I need to locate on my 03 Denali the Seat recliner position sensor, adjustable pedal sensor, and the heated seat thermistors. Do you all know where exactly they are? Both my heated seats heater shut off and my symptoms are exactly what happens when these sensors go faulty. I need to locate...
  11. W

    "Reduced engine power" when you start truck and IMMEDATELY put it in gear...?

    SOMETIMES, when i am in a hurry, key in, start truck, and put it in gear almost all at the same time, my truck will throw the CEL and go in Reduced power mode. If i delete the CEL with my scanner, the truck will drive FINE for months after that. The code was something about the throttle body...
  12. W

    Do our trucks have a resistor/regulator that keeps the seat heaters from overheating

    My truck a few weeks ago had the damn symptom of the seat heaters randomly cutting off. Well I replace both driver pads/elements as they were both old and burnt up. The problem went away and all was great. But I did realize the new pads were EXCESSIVELY hot on the high setting. I just figured...
  13. W

    Help me get the driver door panel off

    Trying to get my driver door inner panel off my 03 Denali. I found a few screws, took em out. Do i Slide it up? or pull out? does the switch panel need to come off? cause its a *****
  14. W

    OEM Leather seat cover... where to buy?

    I am replacing my driver side heating pad element as we speak. While I have the worn out leather OEM seat cover pulled off the chair, can I buy a OEM leather replacement?
  15. W

    I want all your ideas/fixes for the seat heater SHUTTING off dilemma!

    I have an 03 Denali. Had it for 2 years, not an issue ever with this. As of this week, the seat heaters in BOTH front seats like to just randomly shut off. Whats the beef?
  16. W

    I am about to replce my exhaust manifold gaskets... any hint/tips?

    Well, both my exhaust manifold gaskets are shot on my Denali at the head. I am about to do this in a few days. Any tips or tricks to this to make it easier? I have NEVER done it!
  17. W

    Installed a SECOND parallel tranny cooler for my Denali today! (Pics Inside)!!

    Well, its 100degrees too often here in KY and I tow ALOT of trailers, cars, mowers, etc.... and the tranny reads 220-240degrees on long hauls. I am TIRED of seeing that and the wussy OEM cooler is garbage. I see larger tranny coolers on freakin Ford Contours for gods sake. So, after hunting...
  18. W

    *One Pic* of my truck

    Had a local car meet, so usually I dont blend in well, but this pic was taken of me pullin in, and people asked why the Fed's were passing by. HAHA LMK what ya think of my black beauty...
  19. W

    A/C doesn't work well at idle, but AWESOME when driving

    Any cure? When driving my AC is ICE cold. When at idle, its warm.. ;O(
  20. W

    03 Denali, all stock. How do I 'stiffen' up the front end?

    My truck feels kinda squishy/bouncy up front when I go over whoops/bumps. What out there can I buy to stiffen it up some? Stopping the sway, etc
  21. W

    03 Denali getting warm when towing on HOT days

    6.0 Denali. When towing a 19ft car trailer (flatbed) with a 2,000 car on it on 90+degree days.... my coolant temp gauge will start to creep over half way, around 220f or so. I am towing in TOW mode. Is there any solution?
  22. W

    Wanted: Intake for my 03 Denali

    Looking for a new/used intake system for my 2003 Denali
    • wade
    • Thread
    • Replies: 0
    • Forum: Wanted
  23. W

    Lets Discuss: Transmission Temps!

    I have an 03 Yukon Denali. I have a tranny gauge and oem tranny cooler. On HOT days, 95+ degrees, when cruising the needle will be a hair over the 200degree mark. I am not too worried there. But when I towed a car from SanAntonio to Ky, the thing was about 235degrees reading on the OEM...
  24. W

    2003 Denali, 120K miles. Randomly dies when you start it....

    Once in a blue moon, when I start my truck, it will die/shut off almost immediately and won't always restart immediately once it happens. Once it does, it may kinda idle rough and struggle but once you hold the accelerator down for a moment it clears up and runs fine. This only happens about 5...
  25. W

    New Pics, Work in progress...

    need front light housings smoked out, some new lights, and some small other things. Welcome to additions to add!

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