Cam or cams not lined up with crank properly
Yes, the Catera has a timing belt, tensioner and two idlers.
Chances are the Timing gears or pulleys are not properly aligned. The Cam shaft and the Crank shaft must be aligned properly so that the valves and pistons are "in sync"
It depends on the application, but the water pump, tensioner, and any idlers can be recommended.
Ford recommends it be inspected and replaced if needed at 60,000 miles. I have a 2002 ZX5 and I changed mine at 120,000 miles. 120 is a bit much but there was no visible wear on the belt right up to the time I replaced it. Also when you do replace the belt, spend the extra money and change the idlers and tensioner. Most timing belt "failures" I've seen are from the idlers or tensioner wearing out. Dealer cost is about $345 for parts and labor.
Need to check your idlers and tensioners. You should of replaced them at same time.
yes it has nothing to do with the timing
I would replace the water pump, 2 idlers, tensioner and 3 seals (2 on cam and 1 on crank shaft).
The Pontiac Grand Prix has a Timing Chain with a spring loaded tensioner. The tensioner is know to wear, crack and then break. The timing chain and tensioner should be replaced at 100,000 miles. This is a pretty big job that can be done with the motor in the car. $$$ Ray
there are two tensioners, the serpentine tensioner and the timing belt tensioner. the timing belt tensioner is behind the timing belt cover ;)
Not unless the bearing in that pulley is noisy or rough when you spin it.
chain. if you hear a clattering noise the timing chain and timing chain tensioner need to be replaced they are usually sold as a kit
Yes, the BMW M20 engine uses a timing belt. It should be replaced (along with the tensioner) every 70000 kM.