The monstrous C8 Corvette Z06 is a high-performance machine that needs proper cooling, whether it’s serving daily driving duties or out for a romp on the track. Unfortunately, some Corvette Z06 owners are noticing an engine coolant leak on the ground or on the engine after it’s been parked for a while.
According to a recent service bulletin, the leak is most likely coming from around the water pump area at the bleed tube or inlet hose. The bulletin recommends checking the positioning of the spring clamp around the hose on the bleed tube and ensuring the tube is slid on all the way. If the leak is coming from the water pump inlet hose, owners should feel around to ensure the tube isn’t rolled and that it’s seated properly on the inlet. The position, alignment, and tightness of the clamp could also be suspect.
In the event that a hose needs to be repositioned, owners should loosen the clamp around the hose, adjust the hose accordingly, and re-torque the clamp to the correct specification. Unless the clamp is damaged, there’s no need to replace it.
When those two hoses are properly positioned and clamped, the coolant leak should go away. For additional details, owners can refer to GM service bulletin #24-NA-177. If the problem persists, it’s best to make an appointment for your Corvette with your local Chevy service department before the leak gets worse.
Released for the 2023 model year, the C8 Corvette Z06 is motivated by the naturally aspirated 5.5L V8 LT6 engine, which is rated at 670 horsepower and 470 pound-feet of torque and can spin up to an 8,600-rpm redline. Output is routed to the rear wheels through the revised GM eight-speed dual-clutch automatic transmission co-developed with Tremec.
Under the body panels, the Corvette Z06 rides on the GM Y2 platform. Production takes place exclusively at the GM Bowling Green plant in Kentucky.
Comments
That’s funny. Do you actually think a Chevrolet Corvette owner is gonna feel for a leak and reposition the hose clamp then tighten and then torque it down to the correct setting? Nooooooooo. It will be towed to the dealer on an enclosed trailer. Then while it’s there it will get its fall oil change after been driven 1000 miles since it came out of the garage at the end of May. Oh but wait there are no AC delco oil filters available because of a shortage. Ohhhhhhhh the humanity.
It is nice that instructions were published.
Most engineered vehicle in the country and they can’t put a hose clamps on correctly
Tony you must be following me around!!!!!!! Lol!
Nothing finer than GM, mark of x lax. For 100,000+$ vehicle this is inexcusable. Where’s fain now?
Being able to afford one of these & being limber enough to do what gm wants the owner to do, might not be possible for many owners.
There are some truly wonderful folks in the UAW.