# First major problem on Sienna

**URL:** <https://community.cartalk.com/t/first-major-problem-on-sienna/74579>\
**Category:** Maintenance/Repairs\
**Tags:** sienna, toyota\
**Created:** [September 11, 2012, 3:48am UTC](https://community.cartalk.com/t/first-major-problem-on-sienna/74579 "2012-09-11T03:48:34Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![daveha](https://avatars.discourse-cdn.com/v4/letter/d/8491ac/32.png) [@daveha](https://community.cartalk.com/u/daveha)\
**Post date:** [September 11, 2012, 3:48am UTC](https://community.cartalk.com/t/first-major-problem-on-sienna/74579/1 "2012-09-11T03:48:34Z")

</div>

We bought 2001 Sienna new. At 230,000 replaced shocks. Coincidentally or not the next day we began to experience a violent shaking at 40MPH. Haven’t since. Forgot to mention that engine light went on. We’ve already replaced catalytic converter years ago.

---

<div class="post-metadata">

**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [September 11, 2012, 3:59am UTC](https://community.cartalk.com/t/first-major-problem-on-sienna/74579/2 "2012-09-11T03:59:06Z")

</div>

Ask the shop that replaced the shocks to check them out again. It sounds like something may have gone wrong with the installation.

---

<div class="post-metadata">

**Author:** ![galant](https://avatars.discourse-cdn.com/v4/letter/g/77aa72/32.png) [@galant](https://community.cartalk.com/u/galant)\
**Post date:** [September 11, 2012, 9:32am UTC](https://community.cartalk.com/t/first-major-problem-on-sienna/74579/3 "2012-09-11T09:32:00Z")

</div>

Have the codes for the check engine light read. They might be leading you to the right solution.

---

<div class="post-metadata">

**Author:** ![keith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/keith/32/5518_2.png) [@keith](https://community.cartalk.com/u/keith)\
**Post date:** [September 11, 2012, 11:03pm UTC](https://community.cartalk.com/t/first-major-problem-on-sienna/74579/4 "2012-09-11T23:03:55Z")

</div>

I don’t see a question here.

---

<div class="post-metadata">

**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\
**Post date:** [September 14, 2012, 12:14am UTC](https://community.cartalk.com/t/first-major-problem-on-sienna/74579/5 "2012-09-14T00:14:44Z")

</div>

Have the ECU scanned for stored fault coodes. Post them here.