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Chevrolet C6 Corvette

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Comments

  • bolivarbolivar Posts: 2,316
    Read your owner's manual, it shows the under body jack points.

    The car can also be supported on the side rails. There is an area where the body color plastic does not wrap under the car, jack stands can be placed there. Do not place jacks or stands on the wrapped around plastic, the plastic will break, and this is a very expensive repair.

    The battery should not be allowed to freeze. If you pull it out and place in on a concrete floor, it will discharge in 6 months.

    You can buy trickle charger that you can leave connected all the time to the battery. This is possibly the best thing to do. Removing a cable should be done even if there is a trickle charger used.

    When you hook the battey back up, the windows must be re-indexed. Read your manual for this.

    Add fuel stabilizer to the gas tank and run the motor for a couple minutes before the final shutdown.

    Change the oil just before shutting it down.

    I've never actually done this, so I really don't know what works. The above is just some of the things I've seen discussed.
  • nyccarguynyccarguy Stamford, CTPosts: 7,423
    to pump up the tires to their MAX load capacity so they don't flatten out.

    You could always lend the car to me and I'll make sure it gets driven, washed, & driven some more:) :P

    2001 Honda Prelude Type SH/ 2011 BMW 328xi / 2011 Honda Pilot EX-L w/ Navigation

  • billmlbbillmlb Posts: 2
    Hi

    I have a 2007 C6 with Z51 pkg and 6 speed manual. I'm having two non-consistent problems, one sounds a little like your gear/bearing noise.

    1) When I first start-up the car, sometimes I hear a tapping noise and think it might be the lifters.

    2) After backing up, I shift into first and after a few hundred feet, I sometimes get a very loud metal-on-metal grinding noise. It kind of sounds and feels like a bicycle chain slipping and clanking against a metal shield. The noise lasts for a few seconds, it also feels like the car hesitates and then catches and moves forward. This doesn't always happen.

    Naturally I cannot duplicate these problems when the car is at the dealers!

    BillMLB
  • fedlawmanfedlawman Posts: 3,118
    The first one sounds like a little clatter before the oil is warmed up and fully circulating.

    The second one sounds like the ABS system initializing.
  • coupedncalcoupedncal Posts: 252
    the first one should not be happening if you are using the correct weight oil and using synthetic. If you are still getting it, then you need to take it back to the dealer.
  • bolivarbolivar Posts: 2,316
    Depends how long the car is sitting between starts. If the car has been sitting several days or more, you may hear some lifter noise.

    I don't drive mine very often, and get lifter noise for a couple of seconds after startup.

    And I don't worry about it.
  • billmlbbillmlb Posts: 2
    Hey bolivar,

    Thanks for taking the time to reply! I don't drive my car very often either and you may be right!

    BillMLB
  • toydriver1toydriver1 Posts: 11
    My '07 C6 6sp auto coupe now has 3500 miles on the odo. Recently I have noticed a "grinding" noise coming from somewhere in the rear while slowly turning in either direction. This only happens when I first start driving the car and the engine oil, etc. is still cold. Once I drive for 10 miles or so, the noise goes away.
    I seem to remember reading about some similar posts describing similar noises, but I can't find them at the moment. I haven't taken it to the dealer yet. I plan to address it with them at the time of the first oil change later this summer, unless this is a problem that requires more immediate attention.

    Does this sound like a problem developing within the rear differential ?
    Is there a TSB describing such a noise ?
    What's the fix ?
  • bolivarbolivar Posts: 2,316
    Do you hear the noise only when turning, or also in a straight line?

    IF turning, it's probably a noisy rear differential. Chevy limited slip differentials have made noise for many, many years. The noise in the Corvettes seems to become worse, from what I've read, over the last few years. Chevy have been changing the fluid and additive over the last couple of years to find something that will resist the noise. They have again come out with a new fluid in the last few months, which seems to be helping many people.

    If you dealer has sold many Corvettes, the service department should be well aware of noisy rear diffs. They have TSBs to look at which should give them the newest fluid to use.

    A noisy diff does not harm much. As you drive the car, and do not make many sharp turns, the lubricating fluid is forced out of the friction plates in the diff. The dry plates then make noise when the car is turned sharply. If you would take the car to any empty lot and drive in tight circles or figure 8's for about 8 loops, you will open up the plates and fluid will get in there and the noise will stop. For a while at least.
  • toydriver1toydriver1 Posts: 11
    Do you hear the noise only when turning, or also in a straight line?

    ONLY while turning sharply. For example, turning into a parking spot or backing onto the street from my driveway. ONLY when steering wheel fully "cranked" to either side. NO noise when driving in a straight line.

    I haven't driven the car aggressively. Mostly, a weekend cruiser and summer evening driving with the wife. Typically the only "sharp" turns are at less than 15mph.

    The dealer where the service will be performed is different than where I purchased the car, but they do have the most experience in our metro area
    ( typically have 5 to 10 new vettes and 3 or 4 used ones on their lot at any given time). So, taking your advice I will assume that they know how to check for TSBs and will be willing to change the fluid, since it is under warranty.

    Thanks for your advice. I'll try the "tight circles in a parking lot" routine and see if that helps too.
  • bolivarbolivar Posts: 2,316
    Also,,,,

    front tire noise.....

    Because of the alignment and the super wide tires, a C6 Corvette turned at full lock, moving slowly, will actually scrub (slide) the front tires. And you will be able to hear this. Completely normal, nothing to worry about, and nothing can or should be done about this.
  • toydriver1toydriver1 Posts: 11
    Yes, I've gotten use to the front tire "scrub". Annoying as it is, this isn't the "noise" that I was talking about before. Clearly the noise comes from the rear and sounds mechanical. A low pitch grind or clunk for only a few seconds. I hear it at low speed only when turning. It also seems to go away once the car is warmed up and after driving for several miles. The car works perfectly. No power loss or anything like that.
    I think you were "spot on" when you described the situation with the limited slip diff. I'll report back after a few "tight circles" in the parking lot and see if that temporarily cures the noise.

    thanks again for your input.
  • toydriver1toydriver1 Posts: 11
    Bolivar:
    After several "figure 8s" in a local parking lot, the noise went away..............................until it was parked for a few days. Then I heard the same thing when pulling into a parking spot. Low pitch grind like metal components rubbing. Again, I don't hear it after the car warms up and I don't hear it when cornering at speeds over 30 mph or so. I found reference to the TSB about "rear differential noise" in the Edmund's service link for my '07 C6.

    I'll need lube service within the next month so I'll have the dealer address the noise at that time. Hopefully they'll put some new and improved lubricant in the differential reservoir.

    Thanks for your help.
  • ybpoorybpoor Posts: 1
    I purchased my first Corvette, a new 2006 on May 30, 2007. The car now has 2380 miles. Unfortunately for me I've spend the last 4 months overseas and the 12 month period everyone seems to be referring to has obviously passed. I assume now that I am only eligible to purchase an "aftermarket" extended warranty and not GMPP. Since this is my weekend driver and plan on putting no more than 5000 miles a year, the length not the mileage is more important to me. If I am not eligible for GMPP does anyone know of or can suggest which company offers the best plans/prices? Any help or suggestions would be greatly appreciated
  • bolivarbolivar Posts: 2,316
    You can buy the GMPP plan until the orginial 3yr/36,000mile warranty expires.

    Most/many dealers will offer it. They will want to sell you some aftermarket warranty, probably because they make more money on this. But the GMPP will probably cost more. If a Chevy dealer does not offer the GMPP, go to another one.
  • rayainswrayainsw Posts: 2,497
    As stated - you can still buy GMPP -
    just at a higher price than if purchased before 12\12...
    You can buy this at any dealership - and some
    specialize.
    I saved hundreds buying this way...
    Good luck!
    - Ray
    Drove over 2300 miles in less than the first 2 months in my [ DD ] Corvette...
  • toydriver1toydriver1 Posts: 11
    I previously mentioned that my '07 C6 with 4.5K miles had developed a noise in the rear while driving slowly and making tight turns. Apparently, Vettes are known for noisey rear differentials.

    I had lube service done today and while at the dealer they replaced the rear differential fluid with something "new" from GM" and described in a technical service bulletin ( listed on Edmunds ). The service writer seemed familiar with the problem but was typically hesitant to give "too many" details.
    This fixed the problem and the car now drives like it did when it was new. I hope this new lubricant continues to solve the "problem".

    Thanks for the assistance in describing the problem and the "fix".
  • 2008 Coupe, the left rear wheel well does not fit well to the body, you can actually slide your fingers between the edge of the wheel well black liner and the exterior quarter panel. The dealer says there is no correction. Any suggestions?
  • rayainswrayainsw Posts: 2,497
    Since no one else has responded - here is my $0.02:

    I would immediately take it to another Dealer - one that has
    a Corvette Tech & a good reputation for customer
    service...

    Not trying to be a wise a$$ - there are lots of Chevy Dealers to choose from...

    Good luck!
    - Ray
    C6 A6 07
  • immoeimmoe Posts: 15
    2005 6-speed Z51 has the dreaded dead battery syndrome. It is my understanding that some component needs to be reflashed. My dealer is less than helpful so could someone educate me on the particulars and if possible a TSB# or other info so I can educate the dealer and get this done. Any other suggestions from 2005 owners would be appreciated. The vehicle only has 1621 miles. Thanks!!!
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