How do you replace a crankshaft pulley?

Tiny
CHEVYOWNER10
  • MEMBER
  • 2010 CHEVROLET AVEO
  • 1.6L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 78,000 MILES
I need to know how to replace a crankshaft pulley and what the torque specs are for the bolt.
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Sunday, December 4th, 2022 AT 3:46 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

In general, these are usually an easy job. On your vehicle, the starter will need to be removed to access the sensor.

To get you started, here is a link that explains in general how it's done:

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

If you look below, I attached the directions specific to your vehicle for replacement. In sequence, I included the other tasks needed to complete the job.

Let me know if this helps or if you have other questions.

Take care,

Joe

See pics below.
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Sunday, December 4th, 2022 AT 9:13 PM
Tiny
CHEVYOWNER10
  • MEMBER
Joe, this isn't for the sensor, it's the crankshaft pulley, harmonic balancer? LOL

PS. I replaced that sensor anyhow.
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Wednesday, December 7th, 2022 AT 3:37 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

Sorry about that. Ugh!

My manual doesn't show a replacement procedure. However, the removal is simple, but the space available makes it difficult.

If there is access via the wheel opening, that is the way I would go. Remove the wheel and fender liner to access the pulley.

Next, remove the serpentine belt. Once that is off, remove the center bolt on the pulley/harmonic balancer. See pic 2 below. You will need a puller to remove the part from the crankshaft.

Reinstallation is the opposite of removal. I attached the torque specs below. (See pic 1)
Let me know if this helps.

Take care,

Joe

See pics below.
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Wednesday, December 7th, 2022 AT 4:17 PM
Tiny
CHEVYOWNER10
  • MEMBER
No problem. I was just wondering; how do you torque the crankshaft pulley without making the crankshaft move? Most applications have a holder tool. This crankshaft pulley don't look like there is any holes to install the tool to keep the crankshaft from moving.
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Wednesday, December 7th, 2022 AT 8:07 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

This is a tricky one. What I have done is to remove the transmission inspection plate or the starter and hold the flex plate. To make it a bit more difficult, they want the bolt torqued and then adjusted to degrees. See pic 1 below.

Pic 2 shows the service hall cover. If you remove that or the starter motor, you can prevent the crankshaft from turning.

Let me know if that helps.

Joe.

See pics below.
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Thursday, December 8th, 2022 AT 6:36 PM

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