No belts rotating

I have an ‘03 PreRunner 2.4l. She ran dinner all week, never had any glaring issues leading up to the event. Yesterday I started it up and noticed my power steering was basically shot. I opened the hood to find none of the belts spinning at all. Fluids are all good, what could be causing this to happen? Haven’t driven it since. Anything helps!!
https://youtube.com/shorts/tFQ-PHtRw4w?si=p5bXWAXGzDP6rLQ0

 

I think there's rubber inside the crankshaft pulley that can tear apart, separating the two pieces? I'm not familiar with it but I've been looking into all the parts in the timing belt area in anticipation of doing a job.

 

Replace the Harmonic Balancer (Crankshaft Pulley).

 

That’s crazy.

 

Yep, that's the culprit I'd say fo shor'

 

I dont mean to scare you but the heart of the motor is the harmonic balancer. Get a factory one, replace the bolt and have a shop familar with doing the job do the job, if that means the dealership then pay the freight and have them do it. If the tech gets its wrong it is lots of $$$ to fix. There are one or two posts on the forum where the owner went cheap and is paying the price.

 

Are aftermarket ones really that bad? I've found some threads on the Dayco and Dorman ones and saw no mention of failures. The 3.4L Toyota one is $592 discounted.

 

Dorman for 6 years now......works just fine....

There is a chance the woodruff key may of been compromised.
Needs to be checked out........or you'll just spin the new when taxed later on.....
at a really bad time.




And have to be super careful seating the new one....
that sharp edge on the new key way wants to stick on the key and damage it.


While your in there its a good time to inspect that cookie gasket around the oil pump cover..........they eventually fail, and its super easy to replace while all thats apart.....

and dont forget the new seal under the HB that will be needed....

 

Like they say, a picture is worth a thousand words... this is what awaits if there is an installation error.

 

And I'd be concern with where you buy your oem parts.

Toyota is not gonna make em forever.....
cant say that for the forgers.....

 

So you wouldn’t recommend that I do the job on my own, rather take it into a specialist to do it? How hard is it to replace?

 

Magical

IF the failed part is the Harmonic Balancer
can be done NP......just alot of bolts/cursing.....plan on 2 days if your 1st time
but
need to confirm that the HB is in fact the failed part
this is the rubber portion on HB that others have said failed:

 

now
you need to confirm that the inner portion of HB is still turning and the outer ring is not(bc the rubber ring is gone/cracked)

need to get down under rad.....maybe use a mirror to confirm

1-if inner/center portion of HB is turning and outer is not.....could attempt to replace yourself......it will be a failed HB
2-if the entire HB is not spinning(both inner and outer) then that could be a major job
kinda like OS's picture above

need to confirm the above and get back to everyone
GL

 

It has to be a harmonic balancer issue.
The only other possibility is a failure of the woodruff key or a broken crank snout. (Not likely).


The key to doing it yourself is, be sure the woodruff key is in correctly.
Don’t blast the balancer on with an impact. If the key binds, you’ll never know it until it is too later.
Run it on by hand, and then impact.

I mean you can run it on with an impact if you “know” what to look for for.
But be really careful. I’ve done it, but you need to make sure it goes on straight and doesn’t bind up.
If you mangle the key way in the crank. GAME OVER…….

 

Love this forum, great minds coming together to figure out an issue for someone they’ve never met. I appreciate all of you, I’ll take a look when I get home, as well as order an OEM HB. I’ll keep yall posted!

 

Do it right and it will be fine.

Damaged keyways can be successfully repaired. Early Miatas had what was known as a 'short nose crank' and they had lots of wallowed out keyways.

The repair method was worked out by an engineer and Loctite. Miata.net would contain such info in their Garage forum.

@MagicalBacon I'll bet it's just a matter of the rubber failed and the keyway is ok.

It's not an impossible job, but it's not a rookie job either. We don't know your skills, tools, patience for detail, etc.. It is a *bit* concerning you had no idea what the problem was, which does kinda indicate inexperience in this area. (no offense, we all have to learn sometime)

If there is a local Toyota group near you with some skilled wrench spinners, it's a good time to learn with someone looking over your shoulder.

If not, a quality seasoned independent shop would be a better value than a dealership.

 

That’s what I might just do. I had scoured forums trying to pinpoint the issue, but I came up empty handed. Speaking strictly off “experience”, I don’t got much. Just some odd jobs and easy projects like brakes, rack and pinion replacement, and spark plugs, all things that are easy to do. Might just take er to the mechanic and let em work their magic if it’s being made out as a tougher project.

 

One idiot tried to get rid of the wobble.....which is usually what happens...

....and he locked the HB against the block from tightening that bolt tooooo hard.


That's the reason I'd be suspect about that key.......yours failed in most unusual way.....
HB.....usually wobbles to death.....bolt wont tighten..

 

I also deburr that keyway on a new HB....
.....no way in hell you'll hurt it.......