What makes a LaSabre 3.8 make a knocking noise?
What makes a LaSabre 3.8 make a knocking noise? Have a 2005 Lasabre 3.8. Had a bad knocking noise coming from the engine. Took off the belt and started it up no more noise. Replaced the harmonic balancer still have the noise with the belt on. Noise goes away if you run the engine at a higher rpm . What's the ticking noise coming from my engine? All within the last 4 months at a cost of about $6,000. Now there is a ticking noise coming from my engine. My mechanic thinks it is the lifers at a cost of...