Where is the fuel filter located?

Tiny
FAUGHNIX
  • MEMBER
  • 2010 CADILLAC CTS
  • 3.6L
  • V6
  • 2WD
  • AUTOMATIC
  • 182,000 MILES
Car starts and immediately rough idle and shuts off.
Saturday, April 1st, 2023 AT 3:53 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,645 POSTS
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
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Saturday, April 1st, 2023 AT 6:24 PM

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