tech2

replace the timing set and tensioner.




Segfault I couldn't remember if it was interference or non-interference.

HEMISTUD

I'm going to drop the oil pan to get the trash out of there from the tensioner, both metal and plastic pieces.

tech2

there are plenty of interference engines with timing chains 2.2 ecotec, 3.6 in every Cts, encore, acadia are a few off the top of my head.

HEMISTUD

Have a dumb question. The crankshaft turns twice to one turn of the camshaft. When the timing mark on the crank is up to where it is aligned with the camshaft timing mark (6 oclock cam and 12 oclock crank) and when the camshaft mark is 180 (12 oclock cam and 12 oclock crank). Is the crank always at TDC cyl #1 when the timing is ar 12 oclock?

tech2

the piston is at top dead center on the compression (both valves closed)stroke every single turn of the camshaft. the next time the piston is a tdc the exhaust valve will be starting to close and the intake opening...1/2 turn of cam
so the piston comes to tdc 2x for every single turn of the camshaft but the valves are at different position each time.

Pedro_Zambrano5378

I live in Venezuela, I have the same problem as you have. Happened? you solved your problem with the vehicle.
My car starts but shuts down immediately.

tech2

theft light on?

HEMISTUD

It was a broken timing chain tensioner, so I replaced the timing chain set and tensioner. Started right up. Mine was a no start at all, just cranked.

Thanks Tech2! Listen to this guy he knows his stuff!

Pedro_Zambrano5378

I'm glad you solved the problem of the car. Also you said that that was the solution, helps other forum participant.

Rftlts

When that happened on my 97 caviiller it wouldn't start until I removed the exhaust manifold. Plugged cat converter.