Bad pulley? - Toyota Yaris Forums

bankrobber · 11-02-2013, 09:07 PM

2007 Yaris HB with 178K miles and I replaced the serpentine belt with a lifetime one from AutoZone 1.5 years ago. within a week of replacing the belt I would get a sequel at start up if the A/C was on. I let a month go by before tightening the belt and it always starts squeaking after a week. The belt seem tight. The squeaking is in a very dull sound and has a rhythm to it. If I start the engine cold with the A/C on high it squeaks instantly. If the A/C is on low it wont squeak till the fan kicks in then if I shut the A/C off the squeaks stops immediately. Also when I turn the wheel with the engine cold the squeak starts.
It really doesn't sound like a belt as the squeaking has 1 second intervals. When starting off in 1st gear and turning the wheel I can feel a slight hesitation till the squeak stops. Which almost seems like the VVT is off from a belt slipping

CTScott · 11-02-2013, 09:27 PM

Sounds like you bought one of AutoZone's Dayco brand belts. I had the same issue with theirs and no matter how tight I made it I couldn't get it to not squeak on a cold start. I recently replaced it with a NAPA Gates belt and it has been perfect.

bankrobber · 11-03-2013, 07:12 PM

That's where I got it. It was a Dayco lifetime warranty

CTScott · 11-03-2013, 07:48 PM

Quote:

Originally Posted by bankrobber

That's where I got it. It was a Dayco lifetime warranty

Never again for me. They are too plasticy, as opposed to rubbery, so they glaze almost immediately and then you can never get them to stop squealing.

11-02-2013, 09:07 PM	#1
bankrobber Drives: 2007 Yaris Hatchback Join Date: Jan 2010 Location: Central Florida Posts: 254	Bad pulley? 2007 Yaris HB with 178K miles and I replaced the serpentine belt with a lifetime one from AutoZone 1.5 years ago. within a week of replacing the belt I would get a sequel at start up if the A/C was on. I let a month go by before tightening the belt and it always starts squeaking after a week. The belt seem tight. The squeaking is in a very dull sound and has a rhythm to it. If I start the engine cold with the A/C on high it squeaks instantly. If the A/C is on low it wont squeak till the fan kicks in then if I shut the A/C off the squeaks stops immediately. Also when I turn the wheel with the engine cold the squeak starts. It really doesn't sound like a belt as the squeaking has 1 second intervals. When starting off in 1st gear and turning the wheel I can feel a slight hesitation till the squeak stops. Which almost seems like the VVT is off from a belt slipping

11-02-2013, 09:27 PM	#2
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	Sounds like you bought one of AutoZone's Dayco brand belts. I had the same issue with theirs and no matter how tight I made it I couldn't get it to not squeak on a cold start. I recently replaced it with a NAPA Gates belt and it has been perfect. __________________

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11-03-2013, 07:12 PM	#3
bankrobber Drives: 2007 Yaris Hatchback Join Date: Jan 2010 Location: Central Florida Posts: 254	That's where I got it. It was a Dayco lifetime warranty