# 1986 Buick Riviera

**URL:** <https://community.cartalk.com/t/1986-buick-riviera/32885>\
**Category:** Maintenance/Repairs\
**Tags:** riviera, buick\
**Created:** [July 5, 2009, 10:16am UTC](https://community.cartalk.com/t/1986-buick-riviera/32885 "2009-07-05T10:16:19Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![bobbob509](https://avatars.discourse-cdn.com/v4/letter/b/aca169/32.png) [@bobbob509](https://community.cartalk.com/u/bobbob509)\
**Post date:** [July 5, 2009, 10:16am UTC](https://community.cartalk.com/t/1986-buick-riviera/32885/1 "2009-07-05T10:16:19Z")

</div>

I have a 1986 Riviera that will randomly die out after getting to operating temperature. Sometimes it will fire right back up and drive just fine for a while. Other times it does start right back up, when this has happened I have tested the spark on top of the coils and I get no spark for a little bit. I was thinking it could be the ignition control module so i replaced it but still same problem. What else could cause a problem like this?

---

<div class="post-metadata">

**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [July 5, 2009, 2:52pm UTC](https://community.cartalk.com/t/1986-buick-riviera/32885/2 "2009-07-05T14:52:10Z")

</div>

Also check for a defective magnetic pick-up in the distributor.

Tester

---

<div class="post-metadata">

**Author:** ![bobbob509](https://avatars.discourse-cdn.com/v4/letter/b/aca169/32.png) [@bobbob509](https://community.cartalk.com/u/bobbob509)\
**Post date:** [July 6, 2009, 8:08pm UTC](https://community.cartalk.com/t/1986-buick-riviera/32885/3 "2009-07-06T20:08:57Z")

</div>

Its Distributor less Ignition System there are 3 coil pack that sit on top of the ignition control module

---

<div class="post-metadata">

**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [July 6, 2009, 9:04pm UTC](https://community.cartalk.com/t/1986-buick-riviera/32885/4 "2009-07-06T21:04:50Z")

</div>

In that case the problem might be with the crankshaft position sensor.

Tester