Question about Lexus LS 430
After shop changed a timing belt, idler pully,water pump and tensioner, when start the car engine has a noise look like from timing belt cover or pully.
COULD BE A BAD BEARING IN THE IDLER PULLY OR THE TENSIONER ON THE TIMING BELT OR THE SERPENTINE BELT. IF ITS A SQUEEL IT MAY BE SOME COOLANT GOT ON THE SERPENTINE BELT. TRY TO WASH THE BELT WITH WATER AND LET DRY COMPLETELY. IF NOISE REMAINS RETURN TO THE SHOP THAT DID THE WORK.
Posted on Jul 17, 2012
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Posted on Jan 02, 2017
Yes thats correct the if the water pump goes so goes the timing belt even if it looks good. The timing belt is only good for 50,000 miles if you have more this then you got your moneys worth.
Posted on Mar 20, 2009
I already took care of the problem, Thanks for your concern.... Joe M...........
Posted on Apr 29, 2009
SOURCE: engine cranks car won't start
Sorry..... 1 notch off is just not good enough. It has to be exact , then if it doesn't run start looking at other posibilities.
Remember that the camshaft turns twice eash time the crank turns once. The distributor rotor works off a gear on the cam.
Your rotor could be off a bit , or it could look exactly perfect the way it was when tou took it out , and still be 180 degrees off.
You have to get your engine to "top dead center" and make sure everything is the way it should be.
A timing chain ( or belt ) can cause permanent and fatal damage to the valve train and pistons in motors that are "interference engines" Find out weather yours is. In a non-interference engine , the clearance between the valves and the pistons is large enough to alow them to move out of time without crashing into each other. An interference engine is not so forgiving.
The fact that your engine cranks makes me hopefull that it is a non interference engine , and that damage has not been done.
Try to find a haynes manual for you vehicle , it will walk you through the steps for most repairs.
Posted on May 10, 2009
If your timing belt broke, then it is possible that the valves in your engine got bent, which won't allow the cylinders to pressurize the fuel/air mixture, and it will let all of the mix to flow freely into the intake/exhaust manifold. This can be checked with a pressure tester that is threaded into the spark plug opening. A mechanic should have one, or you can probably find one at an auto parts store.
Posted on May 21, 2009
sounds like idler bearings but you have to release the tension to check,Also you can check the rest of the pulleys also at this time. I dont think you have to drop the engine.
Posted on Oct 06, 2009
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