So I just replaced radiator, serp. belt, and thermostat. Both before and after there was a slight whine (pulley I am thinking). Today wife said power steering suddenly went out and battery light came on. Any thoughts of what to check first when I get home? Thanks.
Coincidence?
- Thread starter 99LX470
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
sepentine belt tensioner would be my guess....
Pick up another belt and both of the idler pulleys on your way home.
x2. you should always replace the tensioner pulley and belt at the same time (unless you did and forgot to mention). buy it from toyota only. that part has been redesigned and is heavier duty now. the part # is 16620-0W101. i dont know what AimCOtaco means by "both" idler pulleys. i only saw one on my 2000.either way the tensioner pulley is the most likely culprit.
Last edited:
- Thread starter
- #5
Thanks guys. I will print out that p/n and see if I can pick it up today.
16604-0F010 is the other one, it's a ribbed idler pulley v. the tensioner pulley which is smooth. You can probably tell easily by hand which one is worn out assuming it just ate the new belt.
Hopefully it is not the fan bearing that is making noise that's a tougher more expensive swap as I think you have to change the whole fan bracket.
Hopefully it is not the fan bearing that is making noise that's a tougher more expensive swap as I think you have to change the whole fan bracket.
thanks i'd better get that other one also
- Thread starter
- #8
You were correct. Got home picked up the tensioner pulley and spent Friday night replacing it. Wasn't too bad, just a matter of moving a lot of things out of the way. I got away fine with just unbolting PS pump, Alternator, and air intake tubing, and timing belt cover. No special tools required. Naturally I did notice a cracked inner CV boot while I was under there. Guess that is the next project. Now to find a good thread on replacing that. I did take some pics. Will post shortly. Unfortunately these repairs push back the slider purchase. 
- Thread starter
- #9
Belt snapped again today. So I have replaced tensioner pulley already. Does this mean it is probably the idler pulley? Of note, I re-installed the old belt, as I didnt have another new on one hand, the old one didnt look hardly worn. Either way I will be picking up a new belt on the way home. The question is, do I need an idler pulley too?
With the belt removed, have you checked rotation of all components? (spin by hand, how do they feel?)
The only bearings not suspect are the crank main bearings. Everything else should be rotated by hand and checked for damage. Do all the components spin freely with some resistance (still grease in the bearings). Are any of the pulleys bent? Any other dents or damage to the pulleys. Then grab each pulley and make sure the related component is not loose or able to wobble.
After changing the belt and both of the idler pulleys you should have eliminated them as possibilities so it could be the alternator, steering pump, compressor, etc and related mounts. Just have to check one by one.
Good luck!
The only bearings not suspect are the crank main bearings. Everything else should be rotated by hand and checked for damage. Do all the components spin freely with some resistance (still grease in the bearings). Are any of the pulleys bent? Any other dents or damage to the pulleys. Then grab each pulley and make sure the related component is not loose or able to wobble.
After changing the belt and both of the idler pulleys you should have eliminated them as possibilities so it could be the alternator, steering pump, compressor, etc and related mounts. Just have to check one by one.
Good luck!
- Thread starter
- #11
So I replaced the idler pulley this go around, old one wasn't bad, but the bearing was definitely low on grease. I checked all the other pulleys and everything seemed fine, except I did notice a little play on the power steering pulley. Is this normal? It has a some movement from the front of vehicle to the rear. My wife did mention she may have smelled rubber when turning at full lock, i.e. parking. Thoughts?
I have to book my car in for the bearings of the ac compressor. They made a noise when I bought the car but today it was worse. Then no more controls, couldnt switch on the fan, no more out temperature. So I think the bearing is shot.
Whether its normal or not I can't say but my PS pulley has fore/aft play...mine has 200k miles and so far has not been an issue.
I suspect if you look closely at all the pulleys (obviously its not the crank pulley
) you probably will find one that has rubber residue/build-up where it stopped and the belt kept sliding...might help you find the culprit.
The obvious: You DO have the belt routed correctly yes?
I suspect if you look closely at all the pulleys (obviously its not the crank pulley
) you probably will find one that has rubber residue/build-up where it stopped and the belt kept sliding...might help you find the culprit. The obvious: You DO have the belt routed correctly yes?
- Thread starter
- #14
Ok, good to know. I guess I will just check it each night and see if the belt is wearing funny, if the one side is getting worn down quickly from rubbing the pulley edge.
Have your wife turn the steering from full lock to full lock while you watch the belt/pulleys.
Whether its normal or not I can't say but my PS pulley has fore/aft play...mine has 200k miles and so far has not been an issue.
I suspect if you look closely at all the pulleys (obviously its not the crank pulley
^^^ Looking for burned rubber on a pulley is a great freakin' idea! (and I'm not just giving spressomon a "crank pulley" here, it's the next thing to check)
I can't swear but I think I had the fore/aft play as well when I did my timing belt & serp at 190kmi.