# Please help 2003 f150

**URL:** <https://community.cartalk.com/t/please-help-2003-f150/171072>\
**Category:** Maintenance/Repairs\
**Tags:** ford, f150\
**Created:** [October 10, 2020, 10:54pm UTC](https://community.cartalk.com/t/please-help-2003-f150/171072 "2020-10-10T22:54:40Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\
**Post date:** [October 10, 2020, 10:54pm UTC](https://community.cartalk.com/t/please-help-2003-f150/171072/1 "2020-10-10T22:54:40Z")

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I have a 2003 f-150 4.6 supercrew cab 4x4  
can someone please tell me if there is a exhaust donut or gasket where the exhaust manifold bolts to the rest of the exhaust, or is the flange just held together by the bolts without any gasket or donut? i have been trying to look on line but cant find any info.

```
                thanks in advance
```

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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:** [October 10, 2020, 11:09pm UTC](https://community.cartalk.com/t/please-help-2003-f150/171072/2 "2020-10-10T23:09:14Z")

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Why not look on an auto parts site like Rockauto or Ford to see if they sell one. If they do, you need it, if they don’t you don’t.

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**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\
**Post date:** [October 10, 2020, 11:15pm UTC](https://community.cartalk.com/t/please-help-2003-f150/171072/3 "2020-10-10T23:15:48Z")

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I have looked and dont really see any. I just never heard of exhaust flange not having a donut or gasket

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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:** [October 10, 2020, 11:20pm UTC](https://community.cartalk.com/t/please-help-2003-f150/171072/4 "2020-10-10T23:20:05Z")

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Well you have now. Ford uses something similar to a vee band clamp with a bell mouth shape on the exhaust pipe that makes the seal

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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:** [October 10, 2020, 11:21pm UTC](https://community.cartalk.com/t/please-help-2003-f150/171072/5 "2020-10-10T23:21:27Z")

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It has what’s called a bell-mouth exhaust connection.

The exhaust pipe has this type of flange,

![image](https://global.discourse-cdn.com/cartalk/original/3X/4/7/472ed2931c4cbfbe84c4092609b8d25520e5eb1f.jpeg)

And the manifold has this type of flange.

 ![image](https://global.discourse-cdn.com/cartalk/original/3X/e/9/e9b383ad4282a2521aba481a8e0fa83df5fffabf.jpeg)

So when the clamp on the pipe is tightened into the manifold, it forces the pipe to form to the bell-mouth and create a seal.

Tester

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**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\
**Post date:** [October 10, 2020, 11:29pm UTC](https://community.cartalk.com/t/please-help-2003-f150/171072/6 "2020-10-10T23:29:05Z")

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thank you Tester

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**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [October 11, 2020, 4:28am UTC](https://community.cartalk.com/t/please-help-2003-f150/171072/7 "2020-10-11T04:28:04Z")

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Are you smelling exhaust fumes?

Do you hear an exhaust leak?

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**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\
**Post date:** [October 11, 2020, 7:27pm UTC](https://community.cartalk.com/t/please-help-2003-f150/171072/8 "2020-10-11T19:27:29Z")

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yes, its leaking at the flange. the bolts are rusted and probably need to be cut off and replaced.

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**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\
**Post date:** [October 11, 2020, 8:34pm UTC](https://community.cartalk.com/t/please-help-2003-f150/171072/9 "2020-10-11T20:34:02Z")

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And any muffler shop can do this easier and quicker than you can go get the wrong parts.
