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  1. KWIKNVA

    Weak Radio Signal from NAV Head Unit

    I have a 09 Yukon Denali. I'm getting one FM station with a decent signal. All the other FM stations are poor if not there at all. This must be a common GM issue cuz my 02 Sierra basically has the same issue but worst. My wife's MDX has no issues. I doubt it's our location. Anyone?
  2. KWIKNVA

    Exhaust Manifold Bolt Replacement

    So, I've been struggling with this engine knock in my 09 Yukon Denali. I've decided to take it into the dealer. Service adviser almost with out hesitation thinks I have a collapsed lifter. So maybe in a week I'll know for sure. I also will have my exhaust manifold bolts replaced as I have a...
  3. KWIKNVA

    Exhaust Manifold Bolt Replacement

    So, I've been struggling with this engine knock in my 09 Yukon Denali. I've decided to take it into the dealer. Service adviser almost with out hesitation thinks I have a collapsed lifter. So maybe in a week I'll know for sure. I also will have my exhaust manifold bolts replaced as I...
  4. KWIKNVA

    Transmission Help!

    I think I discovered my actual problem. My 09 Denali has been knocking on cold starts. First thought was piston slap or lifter tap. Neither seem right due to how long it takes for the knock to go away etc. Truck idles with no knock, only when accelerating. With the motor/trans cold I got...
  5. KWIKNVA

    Cold Start Engine Knock Concern 09' 6.2L

    Anyone think I should be concern with the cold start knock I get on a 50-80+ degree day? My concern is that it won't actually fade away until the engine has ran for 10min at 200-210 degrees. Once she is hot everything seems normal. I've read about this issue should only persist on avg...
  6. KWIKNVA

    Need Reputable Mechanic or Dealer in NVA

    Looking for recommendations on a good place to take my trucks or plaese advise on any place to avoid. I have a 8.1L 3500 DRW & 6.2 Yukon Thanks
  7. KWIKNVA

    Need Help With Rough Idle!!!

    Hello, Ok, I have a 09 Yukon XL 6.2L that has a rough idle when cold started. Takes about 6-10 sec for the idle to smooth out. Basically it's runs like I have a cam with a 112 LSA. Now I have codes P0175 & P1400. Note P0172 & P0174 are showing in the history. I've read a few threads...

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