Question about 1997 Lexus LS 400

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97 lexus, unable to get belt idler to stop from frezzing up after starting car

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Bill Boyd

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Replace the bearing in the idler pulley

Posted on Mar 13, 2015

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Lexus is200 sqealing at 40mp and stops at 20mph have changed the discs and pads and caliper is fine

You might have a bearing in your alternator failing or an idler pulley bearing for the serpentine belt as the source of the noise you hear.
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My lexus is200 has a sqealing nose from front of the car it starts at 40mp and stops at 20mph have changed the discs and pads and caliper is fine

if it is brakes area the new pads will be bedding in to new rotors

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After changed a new water pump,timing belt,idler pully,tensioner for 2004 lexus ls 430, when start engine has a noise look like from 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.
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How replace and put back on idler pulley n serpintine belt

Hi there,

Use socket wrench to turn serpentine belt counterclockwise at tensioner to get some slack.
Pull serpentine belt off topside of idler pulley and put it underneath idler pulley, and actually try to tuck it up inbetween engine block and idler pulley. Then close your engine hood.

Then crank engine a few seconds and the belt should flip that idler pulley right off.
Dont even need to start the engine. You can tell when the job is done by hearing a big thud, and seeing the dent pushing out on your engine hood. Turn your key off immediately after hearing the thud, or if the engine starts. You just want to crank it a second or two. Easier than using a puller.

If the idler pulley is really shot to bits, it may come off in pieces; if not, there should be one center bolt and a largish washer. Don't lose the washer or bolt since your new part does not come with those (mine didn't!). Replace everything in the same order. Make sure you follow the torque specifications for the bolt when replacing it.

For the dent on your hood, just whack it back down with a hammer, then spray it with white Rust-Oleum spray paint, or the color that matches your car color.

Hope these help.
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Does the timing belt need to be replaced at 90,000 miles on a 2004 Lexus ES 330

yes. This service is recommended by Toyota/Lexus which includes: timing belt, water pump, idler & tensioner pulleys, drivebelts. Typically shop cost $580-$950 depending on their labor charge dealer charges $800+.
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Using either a serpentine belt tool or a long ratchet and a socket on the tensioner pulley bolt, turn the tensioner to relieve tension and pop the belt off. Remove the idler pulley bolt and replace the idler pulley. To finish it up simply reinstall the belt.
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Yes there is a tensioner and pulley that needs to be loosened to replace the belt.
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What is the cost of a 90000 mile service for a Lexus RX 300?

$700

timing belt
idler pulley
water pump
timing belt tensioner
valve cam gasket
coolant flush
spark plug
oil change
pcv valve
tranny oil change
differential fluid cahnge
drive belt
upper/lower radiator hose
brake system flush
air filter

good luck,i hope this help pls dont forget to rate me thanks
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