AC compressor, above it is WP, above is alt., moving to left is PS pump, idler pulley/belt tensioner, and back down to balancer.
February, 2, 2010 AT 7:12 AM
Thank you so much for your response, however, your diagram and description does not name my missing pulley. It is the one at the far left in the diagram.
February, 2, 2010 AT 8:08 AM
Far left is Power Steering (PS).
February, 2, 2010 AT 8:14 AM
It is highly unususal for any pulley to fall off, especially the PS.
Most likely the bearing in pump is bad. Did you hear any screaching sound when pulley went?
February, 2, 2010 AT 9:30 AM
My 16 year old daughter was driving it when it happened so I don't know but tou can spin the remaining threaded shaft very freely.
February, 3, 2010 AT 8:05 AM
Take old pump off, disconnect pressure and return lines and go to autoparts store for remanufactured unit, use old pump to cover core charge and to compare against reman'ed unit to make sure you are getting correct pump.
Give them year, make, model and 8th digit of VIN for correct engine.
If you do not intend to do work yourself, then have Toyota or trusted garage do it.
February, 3, 2010 AT 8:11 AM
Thanks for all your help.
February, 3, 2010 AT 8:24 AM
Your welcome and thanks for using 2carpros.
November, 25, 2011 AT 9:13 PM
I guess I'm a little confused. The above is not my question. My question is: 1999 corolla: Need help on idler pulley installation and diagrahm of serpentine belt. Also, are there two pulleys?
November, 27, 2011 AT 3:09 PM
You can refer to above diagram for the serpentine belt routing.
The autotensioner is at center rear whereas the front center is the idler pulley.