Second son in Apple Valley, CA had a very low mileage 2005 Colorado pickup that had sat for a while. He had bought it new. He took it to be smogged, and said he heard them revving the engine until it screamed (he couldn't visually observe it). It passed smog, but on the way home it started running rough, and quit. He got it to his house where it died and wouldn't start again.
He asked me to buy it from him as is, and I did and trailered it to my house in Vegas. I pulled the plugs and #2 was severely damaged. I knew there was major damage from something floating in the cylinder, so I bought a new factory-dressed crate motor to install.
Finally pulled the original motor last weekend, and found most of a valve in the intake manifold. The plastic in the #2 guide had major deformations from the burning gasses that exited the cylinder through the missing intake valve hole.
I've never heard of this happening with this engine. I suspect the smog shop was trying to clear the carbon (or trying to clear a bad reading from bad gas), and over revved the engine with no load, floated a valve which struck a piston.
I've ordered a new intake manifold and clutch disk along with injector seals to put in the new engine next weekend.
I wonder if #2 son might have some recourse from the shop that trashed his 22k mile motor? If anybody has experience with negligence of this order (especially in California), please let me know.
He asked me to buy it from him as is, and I did and trailered it to my house in Vegas. I pulled the plugs and #2 was severely damaged. I knew there was major damage from something floating in the cylinder, so I bought a new factory-dressed crate motor to install.
Finally pulled the original motor last weekend, and found most of a valve in the intake manifold. The plastic in the #2 guide had major deformations from the burning gasses that exited the cylinder through the missing intake valve hole.
I've never heard of this happening with this engine. I suspect the smog shop was trying to clear the carbon (or trying to clear a bad reading from bad gas), and over revved the engine with no load, floated a valve which struck a piston.
I've ordered a new intake manifold and clutch disk along with injector seals to put in the new engine next weekend.
I wonder if #2 son might have some recourse from the shop that trashed his 22k mile motor? If anybody has experience with negligence of this order (especially in California), please let me know.