It's normal! 
exhaust pop/backfire ??
Thread Starter
Joined: Jan 2004
Posts: 338
Likes: 0
From: Kitchener, ON, Canada
exhaust pop/backfire ?? When my engine is cold or not up to full temp yet, and I let off the gas or shift gears, I hear this poping noise or backfire. I did some searching, and some people say it's normal but others say it's not. I just changed my plugs and wires, and I still don't get as good of gas mileage.
Could it be my o2 sensors? Or something called the check valves, what exactly are the check valves and how do you replace them?
Could it be my o2 sensors? Or something called the check valves, what exactly are the check valves and how do you replace them?
Launching!
Joined: Aug 2005
Posts: 227
Likes: 0
From: Burlington, NC
I have found that the backfiring is normal on a cold engine. I think all Camaros do that when the engine is cold. I assure you that it will not hurt a thing. In fact, I would worry if it did not backfire then the engine is cold.
Thread Starter
Joined: Jan 2004
Posts: 338
Likes: 0
From: Kitchener, ON, Canada
anyone else have insight on this? Does anyone know anything about these check valves on the AIR system?
Last edited by BLCKBRD; Aug 24, 2005 at 05:01 PM.
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Originally Posted by spy2520
i hear it all the time, especially with the cutout. I can actually make it do it at a certain rpm if i let off then feather the throttle. I always thought it was pretty cool.
TECH Resident
Joined: Jul 2004
Posts: 813
Likes: 0
From: It's hard work to look this good
Drove me crazy for years cool at first then it gets embarrasing cause it makes the car sound like a hunk of ****, like somethings wrong with it. removed the air system due to the faulty check valves now I can't make it do it if I tried.
Originally Posted by spy2520
i hear it all the time, especially with the cutout. I can actually make it do it at a certain rpm if i let off then feather the throttle. I always thought it was pretty cool.
