- C6 Corvette Total Recalls and Technical Service Bulletins
Important information to help you understand your Corvette..
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2005 reliability
Harmonic balancer: all cars up to VIN 11039
Roof panel separation -recall
Service Active Handling - recall ('05-'07)
DBS (dead battery syndrome) - no recall but a TSB to reflash the computer. The '05 manual trans have to be parked in Rev to shut down the computer.
'05 manual trans cars still had the same steering column lock as the C5's and all the same problems, that most face at some point. There is a column lock eliminator available now.
The C6's F55 system is 2nd generation version but the shocks themselves are similar to C5. They have been generally very reliable but there have been failures reported and discussed here. Kind of a crap shoot.
Some reading material for you. Be sure to ask questions about anything:
https://www.corvetteforum.com/forums...post1583458943
https://www.corvetteforum.com/forums...2-2006-c6.html
https://www.corvetteforum.com/forums...s-reflash.html
Link to the 7 Recalls for the 2005:
http://www.aboutautomobile.com/Recal...rolet/Corvette
Link to all the Technical Service bulletins related to problems associated with the 2005:
http://www.aboutautomobile.com/TSB/2...rolet/Corvette
I find it strange that you would now want to go with a first year C6 when for a few dollars more you could move up a couple of years and get the new beefier drive train plus other fixes and improvements that GM rolled out on later years. Just getting rid of the 2005 only shark tale XM antenna and the oversized steering wheel alone would be worth the extra dollars.
A clean 2005 coupe with nearly 90,000 miles should go for around $20k and for $25k you could get a under 15k to 25k low mile coupe a couple of years newer.
Just look through the history of the C5 from the first to the 2004 you now own and you will see how many things were changed, fixed and improved over the production run:
C5 Yearly differences in models
1997
• Completely new, redesigned Corvette. Base (FE1) and Z51 (FE3) suspension packages.
• All Z51 cars include: Power Steering Cooler, xx, xx, ??
• 97-00 C5 LS1's produce 345 HP @ 5600 RPM and 350 Ft Lbs of torque @ 4400 RPM.
1998
• Convertible becomes available
• Active Handling becomes available late in year
• The two slots of a 1998 (and possibly late 1997s) curve toward the rear at the bottom. (versus straight down)
1999
• 26# injectors substituted for 28#
• Fuel pump revised to reduce noise
• FRC "Fixed Roof Coupe" aka the hardtop, becomes available. All FRC's are MN6 (6-speed) cars with the Z51 suspension package, and are about 60lbs lighter than coupes.
• HUD introduced
• only one line in driver's side fuel rail cover (no fuel return line?)
• Power telescoping wheel becomes an option
• ? Steering hardware changed to combat wandering
• door sill trim plates added
2000
• Millennium Yellow available
• ? "Thin Spoke" versus "wagon wheel" design wheels become standard.
• Pup cats added to CA models for LEV emissions requirements (5hp loss relative to 97-99)
• Steel swaybar endlinks instead of plastic on Z51 equipped cars
• Z51 swaybar diameters grow (25.4/21.7 to 28.6/21.7 to 28.6/23.6 (note: new rear same as Z06)
• No keyhole on passenger side doorhandle
• Passenger airbag 'off' switch added to console (light by TC/AH button)
2001
• return to 28# injectors for all models.
• Second Generation Active Handling
• Nassau Blue discontinued
• Alternator 'clutch' pulley added on A4 cars
• New soundproofing + foam in all cars
• Smaller keyfob
• electrochromic dimming rearview and driver's mirrors
• lighter AGM battery
• Thickness + Material in vert change
• Chrome exhaust tips for coupe + vert
• 85MM MAF with integral temp sensor (versus 74mm with separate plug for IAT)
• LS1 cam profile changed to: .500/0.500, 198/208 on 115.5LSA (From: 0.472/0.479, 202/210 on 117)
• All Corvettes now have the LS6 intake manifold
• All Corvettes now have the LS6 engine block (windage passages in block), which includes a beefier oil pump.
• LS1 changes result in new output of 350 HP @ 5200 RPM and 375 Ft Lbs of torque @ 4400 RPM (MN6)
• Hardtop/FRC discontinued
• Pup cats added to all models
• Stronger synchros in all transmissions
• Exhaust manifolds revised (5hp regained) - thin wall cast replacing SS manifolds
• metal valvestem caps (late year)
• Torque Tube changed from metal-matrix composite to aluminum alloy 6061, increased in dia from 55 to 63 mm.
• Driveshaft couplings have also been upgraded on manual-equipped models for additional strength and durability
• Introduction of the Z06, which has as differences:
o hardtop body style
o rear brake ducting
o screened inlets on front fascia, without foglights
o F1 supercar tires 265-17 front, 295-18 rear, on 17x9.5 and 18x10.5 (one inch wider, respectively
o new LS6 top-end with new style head design (10.5:1 compression, 64cc chamber), LS6 cam (0.525/0.525, 204/211 on 116) - 385hp
o M12 transmission with shorter gearing (1-2-3 analagous to MN6 with 3.90 rear diff
o Titanium exhaust system
o lightweight windshield
o New, stronger clutch with redesigned master + slave cylinder
o Stronger rear differential (shotpeened ring gear)
o Red brake calipers (otherwise identical)
o Trans overtemp warning light on DIC
o 6500 redline gauges with special checkering + Z06 font
o redesigned PCV system to help combat oil burning
o Red LS6 Fuel Rail Covers (FRC's)
o FE4 Z06 suspension - uprated springs, bars (30mm/23.6mm), shocks (note front spring and rear bar same as Z51)
2002
• Z06 Changes:
o Z06 LS6 cam changed to: 0.551/0.547, 204/218 on 117.5
o Less restrictive intake airbox lid
o Descreened MAF
o Removal of pup-cats (total with changes = 405hp)
o Z06 shocks revised with less rebound for better launching
o Z06 brake pads revised for better stopping (generate more dust)
o Lighter, sodium filled valves w/ stronger valvesprings
o higher tension rings installed to prevent oil burning problems
o slight piston redesign *
o clutch strength upgraded.
o HUD available on Z06 (not avail '01 model year)
o Wheel supplier changed to Speedline, moved from forged to cast. Weight nearly identical
• Electron Blue color offered
• Steel endlinks changed to aluminum
2003
• Late model-year new fuel system design from C6's
2004
· Z06 shocks further refined. Accompanying upper front control arm bushing, and rear swaybar bushing changes.
Last edited by RJRSW; Oct 10, 2014 at 02:40 PM.
BTW, that '04's a beauty. You shouldn't have any problems when you're ready to sell that one. Good luck on you decision.
A clean 2005 coupe with nearly 90,000 miles should go for around $20k and for $25k you could get a under 15k to 25k low mile coupe a couple of years newer.
The Best of Corvette for Corvette Enthusiasts

You'll miss the C5 for a second. The C6 is a whole different machine in every way.



I have an 05 and in the year I had it I already had to have the oil changed twice! Next, I had a nail in each back tire, surprisingly that got fixed. Not to mention the time one of the turn signals burned out. Only on "the 05 death machine" as I say.If that doesn't scream problems I don't know what does. Did I mention a car payment too, yeah my 05 has one of those too! The list goes on! I think my 05 is partially responsible for getting me addicted to heroin, that piece of junk is nothing but problems like having to refuel when the gas tank is empty. Here is a pic of it before it when I picked it up from the dealer, it could have blown up or fallen apart nearly killed me! None of that happened, but it's an 05 they are full of problems
Just looking at that pile of **** you can tell it's an 05, I'm surprised it didn't blow up after it started up. I cant believe it hasn't fallen apart yet. You should check out my post on this forum after I clayed my 05! I'm surprised the clay didn't make the paint come off or better yet the panels fall off! These 05's tend to need washing too if you drive them! Can you believe it! What a pain in the a$$! No other vettes have had the problems I've stated only the 05's! Beware!
Oh yeah they are f*ckin slow, 400HP is like riding a turtle compared to 430. Trust me. I've ridden a turtle.
All the reasons I gave you should steer you in the direction of an 07-13. If you buy an 05 and have to do all the things that I listed that I had to do in just one year, don't say I didn't warn you!
Other than 50 additional horsepower, what else does the 05 C6 bring to the table? That additional 50 HP is easily found in the aftermarket world.
Other than 50 additional horsepower, what else does the 05 C6 bring to the table? That additional 50 HP is easily found in the aftermarket world.

Chuck M
I have the POS $1750 factory NAV in my 09 and it's now 6 years out of date. Why? because I refused to pay $200 each year for the latest map update CD from GM. That's $1200 I've saved by using a $85 Garmin that has free lifetime map updates(four times annually) and is 1000% more user friendly. My factory NAV is used to fill in that hole in my dash, and allow me to operate the radio.
You are correct about the terrible headlights on the C5. I traded my C5 in on my C6 Z06 before I did anything about the headlights, but I was looking at spending around $900 to get decent headlights for the C5 before I got rid of it. My C5 was 10.5 years old when I let it go, and the headlight buckets never failed to operate properly, but I know of a few that gave their owners problems.
Now jumping to a 2007 or even better a 2008, makes better sense(to me)as there are considerable improvements(like the 436 HP LS3 in the 2008 model year). 2005-2007's need an aftermarket air cleaner to pickup some extra horses(that are starved for air), but the 2008> up has the same basic air breather that is used in the Z06).
The 2005 has the A4 while the 2006 has the A6. The 2005-2007 has the T56 while the 2008-2013 has the TR6060.
Last edited by JoesC5; Oct 10, 2014 at 05:50 PM.

Other than 50 additional horsepower, what else does the 05 C6 bring to the table? That additional 50 HP is easily found in the aftermarket world.
I had my 01 with intake, headers full exhaust . Performance wasn't even close to the LS2. When people say 50HP isn't much, that's coming from people that don't have and never have had an extra 50 HP. It's a big difference. I know you got a Z and all, but that's like comparing an LS3 to the LS7 and saying it's not a big difference.
I had my 01 with intake, headers full exhaust . Performance wasn't even close to the LS2. When people say 50HP isn't much, that's coming from people that don't have and never have had an extra 50 HP. It's a big difference. I know you got a Z and all, but that's like comparing an LS3 to the LS7 and saying it's not a big difference.
"It comes down to aerodynamics. The 2000 Lingenfelter Twin-Turbo Corvette Stage II had “no external changes” as the video below says. From the outside, at least, this was a stock C5, which means this car benefitted from the stock C5′s exceptionally slippery 0.29 drag coefficient.The C6 ZR1, with its fancy ground effects and greater appetite for cool air, achieves a drag coefficient of 0.36; in other words, it’s the brick in this comparison."
"Why C5 Corvettes are Faster than C6s and C7s"
https://www.corvetteforum.com/articl...aster-c6s-c7s/
"It comes down to aerodynamics. The 2000 Lingenfelter Twin-Turbo Corvette Stage II had “no external changes” as the video below says. From the outside, at least, this was a stock C5, which means this car benefitted from the stock C5′s exceptionally slippery 0.29 drag coefficient.The C6 ZR1, with its fancy ground effects and greater appetite for cool air, achieves a drag coefficient of 0.36; in other words, it’s the brick in this comparison."
"Why C5 Corvettes are Faster than C6s and C7s"
https://www.corvetteforum.com/articl...aster-c6s-c7s/


the c6 coupe is the lowest coefficient of all cars made 0.286This is the C-5 list
**************************************** ********************************
Stock(Street Tire)
1) 12.79x @ 109.80 - boostyfox Details
2) 12.841 @110.68 - cptinjak Details
3) 12.84x @ 111.xx - Ramsiec5 Details
40 12.93x @ 109.46 - sgostisha Details
4) 12.964 @ 112.79 - pbaur Details
5) 12.98x @ 110.xx - lrbinwpb Details
6) 12.990 @ 107.01 - Mistamike17 Details
7) 12.99x @ 109.81 - c5vette_dallas Details
8) 13.014 @ 106.3x - werckedc5 Details
9) 13.025 @ 105.54 - CRV3TT3 Details
10) 13.10x @ 105.xx - slvrC5vert Details
and the C6 stock list
Showroom Stock LS2 (2005 -2007)
12.215 @ 115.45 - LS1LT1 - 06 A6 - (1278)
12.235 @ 115.58 - 06C6FVR - 06 M6 Z51 - (333)
12.290 @ 114.29 - Proney - 07 M6 - (4500)
12.314 @ 114.82 - CYA Vett - 05 M6 F55 - (675)
12.422 @ 113.90 - DrRichie - 05 M6 Z51
12.499 @ 114.90 - Jschindler - 05 M6 Z51
12.53x @ 113.00 - Wicked07C6 - 07 M6 Z51 - (914)
12.540 @ 113.59 - Tony 63 Vette - 06 A6 - (1510)
12.548 @ 113.74 - Tony96LT4 - 06 A6 Z51 - (1149)
12.56x @ 113.39 - Red Sleeper - 06 A6
12.56x @ 112.00 - Orange C6 - 05 A4 Z51 - (56)
12.650 @ 111.65 - Zippin Zee - 05 M6 Z51 - (48)
12.665 @ 113.03 - Mdrrandall - 07 M6 Z51 - (1675)
12.693 @ 114.88 - Prankster - 06 M6 - (1621)
12.69x @ 112.32 - Silverlx - 06 A6 - (872)
12.703 @ 112.43 - Jelsis - 06 A6 Z51 - (452)
12.70x @ 113.00 - Blackmajik - 07 A6 - (1627)
12.71x @ 111.30 - Flyin05 - 05 M6 Z51
12.71x @ 111.00 - Demented - 05 A4 Z51
12.74x @ 108.67 - Shooter 49 - 05 A4 3.15 - (39)
12.756 @ 112.57 - C5Pilot - 07 A6 Z51 - (903)
12.757 @ 109.25 - Ponchorello - 05 A4 3.15 - (990)
12.795 @ 112.17 - Jchazr - 05 M6 Z51 - (447)
12.80x @ 111.00 - SheDevilC6 - 07 A6 Z51 - (1668)
12.81x @ 112.83 - Vette-oholic - 05 M6 Z51 - (494)
also the C5Z06 V2 LS3 C6 THE C6 IS FASTER
Showroom Stock LS3 (2008 - 2013)
11.718 @ 119.94 - AndrewZPSU - 08 M6 - (2586)
11.806 @ 118.82 - Gmrulz - 08 A6 Z51, NPP - (3478)
C5 Z06 Bone-Stock Times
1--11.783 @ 116.90--1.818--J-Rod---------'02
2--11.818 @ 117.26--1.783--Ranger--------'02 11/03 Slip
Now the C6Z06 AND C6ZR1 are clearly faster too I dont even need to post the times


Last edited by dennis50nj; Oct 10, 2014 at 07:17 PM.
Link to the 7 Recalls for the 2005:
http://www.aboutautomobile.com/Recal...rolet/Corvette
Link to all the Technical Service bulletins related to problems associated with the 2005:
http://www.aboutautomobile.com/TSB/2...rolet/Corvette












