# Fuel filler neck on 04 corolla

**URL:** <https://community.cartalk.com/t/fuel-filler-neck-on-04-corolla/32004>\
**Category:** Maintenance/Repairs\
**Created:** [June 17, 2009, 10:19pm UTC](https://community.cartalk.com/t/fuel-filler-neck-on-04-corolla/32004 "2009-06-17T22:19:13Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![gram\_70](https://avatars.discourse-cdn.com/v4/letter/g/dbc845/32.png) [@gram\_70](https://community.cartalk.com/u/gram_70)\
**Post date:** [June 17, 2009, 10:19pm UTC](https://community.cartalk.com/t/fuel-filler-neck-on-04-corolla/32004/1 "2009-06-17T22:19:13Z")

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my check engine light came on and when i took it to the dealer,they said it was the fuel filler neck, that it was rusty and not holding pressure,but a couple of fellers look at it and don’t see anything wrong.anywhere i can take this and check it out, i have the old one. i know another mechanic won’t want to get involved. what else can i do? it cost $614.00

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**Author:** ![oldschool](https://avatars.discourse-cdn.com/v4/letter/o/e19adc/32.png) [@oldschool](https://community.cartalk.com/u/oldschool)\
**Post date:** [June 17, 2009, 10:44pm UTC](https://community.cartalk.com/t/fuel-filler-neck-on-04-corolla/32004/2 "2009-06-17T22:44:18Z")

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What code did you come up with?hopefully something related to the evap. system.Inquire with a mechanic about a “smoke test”.

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**Author:** ![Roadrunner](https://avatars.discourse-cdn.com/v4/letter/r/d2c977/32.png) [@Roadrunner](https://community.cartalk.com/u/Roadrunner)\
**Post date:** [June 18, 2009, 12:52am UTC](https://community.cartalk.com/t/fuel-filler-neck-on-04-corolla/32004/3 "2009-06-18T00:52:41Z")

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They MAY not be right in their diagnosis.

My '04 Matrix (basically the same vehicle) fuel filler pipe has a rust build up right at the top where the cap screws on.

So far it is sealing.

You may want to attempt to remove some of the rust (stuff a rag in the pipe to below the rust (attach a thin wire to the rag or tie off a string so you don’t lose it into the bottom of the pipe).

Use compressed air to blow away the loosened rust and change the rubber seal and/or buy a new cap.

If the filler pipe has rusted through, you can remove the pipe by removing the two hose clamps on each end and replace the pipe. I can’t see the cost of $614 though.