Intermittent Popping/Burbling noise on warm idle

EJboi257 · 05-25-2022, 02:00 AM

Intermittent Popping/Burbling noise on warm idle. I want to know if this is normal or something I need to look into and be concerned about.

Sounds to me more like a burbling noise. I do not get it on cold start only when at idle when the car is warmed up. It is not a constant burble/pop it happens every 5-20 seconds especially after just coming back from a drive. The catback exhaust I have on the car only seems to exaggerate the burble/pop noise.

I have cleaned the MAF, reset ECU, Spark plugs are changed within the last 2K miles. Car runs strong with good power and making target boost. No CEL, DAM drop etc. 2005 Sti

The car is on a cobb stage 1 OTS map I've heard they can run rich. I plan to eventually get protuned/etuned once I get a downpipe and other supporting mods. Currently just running catback, cyl 4 cooling mod so no actual performance mods.

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AliBenn · 05-26-2022, 05:13 PM

general area of said noise?

EJboi257 · 05-27-2022, 04:41 PM

Quote:

Originally Posted by AliBenn

general area of said noise?

Right out the exhaust as if it was burbling on deceleration.

05-25-2022, 02:00 AM	#1
EJboi257 Scooby Newbie Member#: 528070 Join Date: Dec 2021 Vehicle: 2005 WRX STi	Intermittent Popping/Burbling noise on warm idle Intermittent Popping/Burbling noise on warm idle. I want to know if this is normal or something I need to look into and be concerned about. Sounds to me more like a burbling noise. I do not get it on cold start only when at idle when the car is warmed up. It is not a constant burble/pop it happens every 5-20 seconds especially after just coming back from a drive. The catback exhaust I have on the car only seems to exaggerate the burble/pop noise. I have cleaned the MAF, reset ECU, Spark plugs are changed within the last 2K miles. Car runs strong with good power and making target boost. No CEL, DAM drop etc. 2005 Sti The car is on a cobb stage 1 OTS map I've heard they can run rich. I plan to eventually get protuned/etuned once I get a downpipe and other supporting mods. Currently just running catback, cyl 4 cooling mod so no actual performance mods. * Registered users of the site do not see these ads.

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05-26-2022, 05:13 PM	#2
AliBenn Scooby Guru Member#: 487 Join Date: Nov 1999 Chapter/Region: TXIC Location: Greatwood/Sgrlnd Vehicle: 1998 /2005 STunIcorn Acadia Green RS-T	general area of said noise?