# 2004 Toyota Camry - Red hot

**URL:** <https://community.cartalk.com/t/2004-toyota-camry-red-hot/121152>\
**Category:** Maintenance/Repairs\
**Tags:** toyota\
**Created:** [July 17, 2018, 11:58am UTC](https://community.cartalk.com/t/2004-toyota-camry-red-hot/121152 "2018-07-17T11:58:31Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![wambexkuma](https://avatars.discourse-cdn.com/v4/letter/w/8baadc/32.png) [@wambexkuma](https://community.cartalk.com/u/wambexkuma)\
**Post date:** [July 17, 2018, 11:58am UTC](https://community.cartalk.com/t/2004-toyota-camry-red-hot/121152/1 "2018-07-17T11:58:31Z")

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What can cause Toyota Harrier ACU30 model to have a red hot exhaust manifold just after starting?

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [July 17, 2018, 1:33pm UTC](https://community.cartalk.com/t/2004-toyota-camry-red-hot/121152/2 "2018-07-17T13:33:49Z")

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The cam or ignition timing is way off or the exhaust is blocked. You don’t say which engine or anything else about the car so that’s the best wild guess I’ve got.

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**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 17, 2018, 5:01pm UTC](https://community.cartalk.com/t/2004-toyota-camry-red-hot/121152/3 "2018-07-17T17:01:36Z")

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An extremely rich fuel mixture.

Tester

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**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\
**Post date:** [July 18, 2018, 12:09am UTC](https://community.cartalk.com/t/2004-toyota-camry-red-hot/121152/4 "2018-07-18T00:09:21Z")

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The few times I’ve seen this kind of symptom the converter was clogged. One of them was so bad that the manifolds cooked the paint on the hood.

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**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:** [July 18, 2018, 3:05am UTC](https://community.cartalk.com/t/2004-toyota-camry-red-hot/121152/5 "2018-07-18T03:05:46Z")

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Any diagnostic codes indicating a fuel/air mixture problem? Is the cat getting red hot also?

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**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 18, 2018, 3:11am UTC](https://community.cartalk.com/t/2004-toyota-camry-red-hot/121152/6 "2018-07-18T03:11:18Z")

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If the vehicle has the four cylinder engine, both the pre-cat and the exhaust manifold will turn red hot from a rich fuel mixture.

[https://www.rockauto.com/en/moreinfo.php?pk=8719296&cc=1434115&jsn=378](https://www.rockauto.com/en/moreinfo.php?pk=8719296&cc=1434115&jsn=378)

Tester