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If my memory serves me correctly California Emmission C5's all had pre-cats which are small catalytic converters (pup-cats) between the exhaust manifold and the main cats. A total of 4 catalytic converters..... :beer

PS, you lucky owner, I used to own a 66 and wish I still had it

Stop leak is just a temp repair. What it basicly does , it swells up the seal so it can hopefully reseal, but if the seal is worn-out it will do no good, but on the other hand if it does work remember it is only a temperary fix, because it will leak again.....

I also use Zaino, have been using their produts for the last 4 years on my Y2K Black on Black C5 and I clay it once a year.

Here now is a better condensed description; The throttle actuator control (TAC) system uses vehicle electronics and componets to calculate and control the position of the throttle blade. This eliminates the need for a mechanical cable attachment from the accelerator pedal to the throttle body...

The C5 is drive-by wire, what that means is that there is no throttle linkage or cable from the accelerator pedal to the throttle body. The accelerator pedal position ( APP ) sensor is mounted on the accelerator pedal assembly. The APP is actually 3 individual accelerator pedal position sensors...

As far as I know Donaldson makes the Blackwing Performance Filter for the C5 only. They do make Air filters for the big riggs like Cummins, International and Frieghtliner. Our Local Donaldson Filter dealer does not even show a Blackwing application chart or even show a cleaning kit for the...

Raise the hood and the headlamps, and under the center of the headlamp assembly towards the motor / actuator manual control knob you will see the headlamp door linkage. Spray some WD-40 on all the pivot points of the linkage and also where it pivots on the motor/actuator , activate your...

I have the Corsa system with the X- pipe. Its just a tad louder at idle over the stock system and no interior drone in the cab at hiway speeds, but music to my ears at wide open throttle !!! :beer

I had the same problem on mt Y2K plus it made a grunting noise whenever the headlamps would raise. So I sprayed a little WD-40 on the headlamp linkage and and now the noise is gone and now my lights raise up fast like they used to when the vette was new. Its been a year and far so good ...

First of all poor performance in a C5 is not normal. How long since its last tune up, fuel filter , ect. ect. I would see if you have any trouble codes from your vehicle 's computer and go from there. Also remember that the C5 is drive-by wire, there is no throttle linkage. Also there are 2...

The Blackwing does not have a EOD number from the CARB-Police. As far as passing the visual part of the smog its basicly up to the smog Tech. I just had my Y2K C5 smogged and it past with flying colors in which I have a Blackwing.The first inspection station told me I need to put the stock setup...

Code P1416 HC is a Secondary Air Injection (AIR) System-Bank 2 Since it is a history code (HC) and not an active code I would clear it drive your vette and see if it returns. If it does then I would check out the Air Injection System for a malfunction, hope this helps. !! :beer

Code P1416 HC is a Secondary Air Injection (AIR) System-Bank 2, Since it is a history code and not an active code I would clear it and drive your vette and see if it returns. If it does then I would check out the Air injection system for a Malfunction in the Air Injection System. Hope this...

I bought my 85 C4 in 1986, In 1996 I switched over to dex-cool (50/50 mix with distilled water ) and sold it in 2000 with no cooling system problems . When I switched over to Mobil I motor oil is when my problems started. My motor leaked oil at the valve covers, the oil pan, and the front seal...

I installed my Corsa X pipe after running the Corsa Touring exhaust system. What the X pipe did was remove the motorboat sound and tamed the exhaust note down . I kinda miss the motorboat sound but noticed no other gains. My buddies 03 with the stock exhaust smoothened out his exhaust burbble...

My Y2K leaked at 6500 miles. There was gear oil all over the left side of the suspension but the half shaft axle seal seemed to be dry. After further investigation it seemd that the gear oil was comming out of the breather and that the factory had overfilled it. I Changed the fluid added the...

Lets also not forget F45 adjustable suspension settings (sport, tour and performance) active handling and power-telescoping steering wheel, with easy exit where the drivers seat powers back and the steering wheel powers down to make it eaiser for the driver to exit the vehicle.

"Beauty is in the eyes of the beholder " !!

I use Mobil One oil filters but, but reguardless on which oil filter you use if you don"t change it, why would you want clean oil going thru a dirty filter !! Just my $.02 worth............:beer