While passing another car on the highway, the engine rev'd to its acceptable highest RPM, up-shifted and then I had a P0306 code show up. After investigation, I have no compression in cylinder 6.
5.3 LC9 is bone stock with 190K miles. I have yet to start working on it but I am assuming it has a bent valve from smacking a piston at high RPM. I would love for it to be a broken valve spring but I dont really see how that can cause a compression lost without dropping the valve.
But my real question is, WHY did this happen on a bone stock engine? Is this a known issue?
Thanks.
5.3 LC9 is bone stock with 190K miles. I have yet to start working on it but I am assuming it has a bent valve from smacking a piston at high RPM. I would love for it to be a broken valve spring but I dont really see how that can cause a compression lost without dropping the valve.
But my real question is, WHY did this happen on a bone stock engine? Is this a known issue?
Thanks.