Where is the fuel filter located?

2010 CADILLAC CTS
182,000 MILES • 3.6L • V6 • 2WD • AUTOMATIC
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FAUGHNIX
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Car starts and immediately rough idle and shuts off.
Apr 1, 2023 at 3:53 PM
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JACOBANDNICKOLAS
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Hi,

The fuel filter is in the fuel tank and is serviced with the fuel pump assembly.

How often does this happen? I ask because a filter usually doesn't cause what you explained. If it is partially plugged, you are more likely to notice it when the engine is under a load and the fuel supply is increased.

Oftentimes, a rough idle and stalling at idle is the result of an engine vacuum leak. Have you checked for any leaks?

Here is a link that explains how it's done:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Also, read through this link and let me know if anything is helpful:

https://www.2carpros.com/articles/stall-at-idle

Let me know.

Joe
Apr 1, 2023 at 6:24 PM