Worn belt or belt that has stretched to the point the tensioner cannot keep the proper tension. The tensioner can also be defective. Replace the belt and the tensioner.
The timing may be off. If the timing belt is old then the gears can slip and cause backfiring, or the engine to not run at all.
The benefit to replacing the timing belt on a 99 Toyota RAV4 is that it prevents catastrophic failure and it keeps timing accurate. As the belt wears, it may slip or break which can be very expensive to repair.
it won't slip, it will break if anything, and yes it will bend the valves
timing belt
These cars had a problem with the teeth on the original timing belt coming off and the belt not breaking. if this has happened most likely you have bent valves too. These are a interference engine which means if they slip on the timing the valves hit the pistons. Chevrolet should have recalled these cars and put a better timing belt in them. Instead they did a goodwill service where they paid for a new timing belt if the owner paid to install it. These cars had a problem with the teeth on the original timing belt coming off and the belt not breaking. if this has happened most likely you have bent valves too. These are a interference engine which means if they slip on the timing the valves hit the pistons. Chevrolet should have recalled these cars and put a better timing belt in them. Instead they did a goodwill service where they paid for a new timing belt if the owner paid to install it. These cars had a problem with the teeth on the original timing belt coming off and the belt not breaking. if this has happened most likely you have bent valves too. These are a interference engine which means if they slip on the timing the valves hit the pistons. Chevrolet should have recalled these cars and put a better timing belt in them. Instead they did a goodwill service where they paid for a new timing belt if the owner paid to install it.
You don't, it's either broken or not there is no in between. Unless you are very lucky and the belt will slip one tooth without braking. You will notice that because the engine timing will change.
I think that after you put on the timing belt alighned properly,that your distrib. makes up the diff. when you adjust it. Jim
Yes. Mine slipped at 6500 miles even with new tensioner, spring, etc
It does not have a timing belt. It has a timing chain.It does not have a timing belt. It has a timing chain.
bad ignition timing is correct. The timing gears may have slipped, and if the timing system uses a belt instead of a chain then the belt could have worn. The timing systen keeps the intake, exhaust and cyclinder pistons all in time so the engine will fire correctly. If the belt or chain slips even just a small amount, then the valves let gas in or out before or after the piston is at the point where the cylinder shout fire the spark plug. If the belt or chain slip far enough the engine will not fire at all. Bad ignition timing or fuel getting to the exhaust.
93 civic has a timing belt... if its dual overhead cams, it is nessecary to find the timing marks.. set them properly to their marks as well as the crankshaft. once these are properly set slip your timing belt on and then find the mark for your idler pulley.. reinstall everything and drive away
Timing belts only get loose if the tensioner is broken. If that happens the belt will slip and your engine will be out of time. It will either not run at all or run very badly. On an interference engine you could have internal engine damage.