Hey guys,
I have my eye on an 06 XL Denali, Very nice vehicle. It has 75k on the clock. Its condition in and out is spectacular. The dealer has said they can produce maintenance records for me as well, Ill find that out tomorrow.
They are asking 17,900. Which I feel is a bit much, I feel if they knocked it down 1k, it would be more comparable to other Denali's Ive seen.
I absolutely love the truck, Perfect for my application. One big concern I have though. I noticed that there is a fairly pronounced tap/knocking sound that starts around 1.5k and fades away through 3.5/4k. It is present driving and parked in neutral. I first heard it under heavy acceleration during the test drive tonight, the engine was at operating temp. The vehicle seemed to have a harsh shift out of first while under heavy acceleration. Normal acceleration produced smooth shifts.
After we returned to the dealer, I popped the hood and rolled the engine through that particular range to confirm what I thought I had heard. It was indeed a good tapping sound that remained present the whole time I held the engine at 2k.
I would say something in the valvetrain? Is the vortec valvetrain know for this?
I would appreciate some input before tomorrow afternoon where I will be returning to the dealer with my mechanic. Thanks in advance!
Pete
I have my eye on an 06 XL Denali, Very nice vehicle. It has 75k on the clock. Its condition in and out is spectacular. The dealer has said they can produce maintenance records for me as well, Ill find that out tomorrow.
They are asking 17,900. Which I feel is a bit much, I feel if they knocked it down 1k, it would be more comparable to other Denali's Ive seen.
I absolutely love the truck, Perfect for my application. One big concern I have though. I noticed that there is a fairly pronounced tap/knocking sound that starts around 1.5k and fades away through 3.5/4k. It is present driving and parked in neutral. I first heard it under heavy acceleration during the test drive tonight, the engine was at operating temp. The vehicle seemed to have a harsh shift out of first while under heavy acceleration. Normal acceleration produced smooth shifts.
After we returned to the dealer, I popped the hood and rolled the engine through that particular range to confirm what I thought I had heard. It was indeed a good tapping sound that remained present the whole time I held the engine at 2k.
I would say something in the valvetrain? Is the vortec valvetrain know for this?
I would appreciate some input before tomorrow afternoon where I will be returning to the dealer with my mechanic. Thanks in advance!
Pete