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You are in the Chevrolet Suburban & Tahoe
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Chevrolet Tahoe, Chevrolet Tahoe Limited/Z71, SUV
Oct 28, 2010 (9:40 am)
I have a 2006 Tahoe and have been having a ticking noise in the motor for a little over a month. I finally got enough money to take it to a mechanic and he took the engine cover off and found that the lifters were eating at the cam or the cam is going bad. I have 85,000 miles on this truck. I am wondering if anybody else has had this problem? I called the chevy customer service and the lady was very nice and explained to me that if a chevy dealership stated that the part was defective then Chevy will pay for it to be fixed. I did not get the extended warranty when I purchased the tahoe so I am stuck with paying for it. It turns out that it will cost a pretty pennie for us to fix so we are hoping the mechanic rules it a defective part. (fingers crossed) Why is something like this happening to this truck with not very high miles? Is it something that normally breaks? Could this be my error? Could I have avoided this? If so How? I have changed the oil everytime the truck has told me too. Any info would help!
#669 of 762 Re: 2006 Tahoe [tilwch24]
Oct 28, 2010 (9:56 am)
Lack of oil, wrong weight oil, inferior oil, dirty oil, is what most normally first think of.
#670 of 762 Re: 2006 Tahoe [kiawah]
Oct 28, 2010 (11:24 am)
Hum so something Pertaining to the oil has caused this. Which, to me that would mean that it is highly possible the mechanic would rule that it was owner error instead of product defect. I wonder how if you have changed the oil, and used the same/correct oil in the vehicle since you purchased it, what would cause the lifters to eat away at the cam, or for the cam to go bad?
#671 of 762 Re: 2006 Tahoe [tilwch24]
Oct 28, 2010 (12:03 pm)
Well hate to date myself here, but 30 years ago I had bought a 80 GMC PU, 3/4 ton, 350 engine. It was a great vehicle. Some number of years later during a very hectic period of my life, actually right around 75K miles if I remember, I was doing some very heavy hauling for my FIL at highway speeds for a couple hours on end. I had neglected to check the oil, and started to have a tapping like yours. When I checked the oil, it was both very low and I realized I had missed an oil change.
Ended up with new cam and a couple lifters. I now religiously check oil levels on all my vehicles on a regular basis, use Mobil1 synthetic, and never stretch oil/filter changes....always change way before their 'maximum' mileage ratings. Oil and filters are cheap insurance.
#672 of 762 Re: 2006 Tahoe [kiawah]
Oct 28, 2010 (12:41 pm)
I know it's hard to believe someone when they say they change oil as suggested by the owners manuel, but I have. My Tahoe tells me when it is time to change the oil and I have done exactly that. With that said is there anything else that could cause this?
#673 of 762 Re: 2006 Tahoe [tilwch24]
Oct 28, 2010 (1:51 pm)
You've got metal parts, rubbing against each other, at high temperatures.
Who knows what else could cause it:
- Blocked/clogged oil passage (like plaque in your artery)
- The neighborhood kid, put a handful of sand into your oil filler tube
- A mislabeled case of oil, 2 oil changes ago, where you put in 0w10 unknowningly
- A clogged oil filter, three oil changes ago
- A metallurgic defect in the lifter, that somehow worked fine for 80K miles then showed up
- You driving at a 70degree incline going up the side of a mountain, causing oil starvation
- who knows, could be a bunch of things, and hard to 'prove' anything.
If the dealership is willing to pick up any of the cost (because you are perhaps a repeat customer, and they have performed all of the maintenance and have record of it), perhaps you buy the parts and they do the labor, consider it a gift, take it and run.
#674 of 762 Re: 2006 Tahoe [tilwch24]
Oct 28, 2010 (4:21 pm)
When I pulled the small block in my '73 Corvette (bought new) 72K mi, I found that the rear cam lobes were wearing down. When I checked around, several mechanics said that SBCs were notorious for "soft" cams. In other words, they didn't case harden the lobes deep enuf.
Curious to know if yours has roller lifters?
#675 of 762 2003 tahoe z71
Nov 25, 2010 (9:38 am)
when my truck sets backed into driveway overnight with approx 1/4 tank or less it will not start untill I add fuel approx 3 gal?
#676 of 762 Re: 2003 tahoe z71 [marty69]
Nov 29, 2010 (4:53 am)
If your drive way is not level, it is probably the fuel pump. I replaced my fuel pump with AC Delco brand and now no problems.
#677 of 762 Re: 2003 tahoe z71 [sasz71]
Nov 29, 2010 (4:15 pm)
Thanks so much! You confirmed my diagnoses.. Would you have any tips on replacement... I replaced a fuel pump in my sons 96 ford ranger and it was a real pain removing tank and all.. then someone told me he just removes bed to do same. I know theres no bed to remove here but any tips would help!!!