Popping sound from Throttle body?

silvermiata · Postby **silvermiata** » Tue Aug 21, 2007 10:59 am

After i rev the car, as it comes back down to idle, i have this popping sound coming from throttle body /air intake. It is as if the car is backfiring, but the sound is much less. I can hear \"pop pop\" once or twice and the car idles normal without any noise.

I changed the ignition leads and changed the sparkies 5000 kays ago...

Did anyone experience this? any ideas?

marky210 · Postby **marky210** » Tue Aug 21, 2007 2:18 pm

Do you have an NB8A??

I have an NB8A and i too get a popping/gurgling sound coming from my intake-podfilter :shock:

Ive noticed it for a while and it tends to do it when i move the steering wheel from side to side when the car is stationary and probably also when its moving but cant here coz of road noise. :shock:

If anybody else has had this it would be great to know whats causing it and why and if its causing damage to somthing :shock:

Cheers, Mark

silvermiata · Postby **silvermiata** » Tue Aug 21, 2007 3:19 pm

Yes it is nb8a, it started doing it 3 weeks ago when i put a pod filter... then i have taken the pod off, but pop sound is still there. I have also realised it happens when i drive the car, it does not happen too much when i rev it standing.

i just got some TB cleaner, and some iridium plugs, will remove the TB and give it a good clean/degrease tonite.

Matty · Postby **Matty** » Tue Aug 21, 2007 4:22 pm

They all do that. You can just hear it now...

manga_blue · Postby **manga_blue** » Tue Aug 21, 2007 5:53 pm

Popping in the inlet side usually means the mixture is lean, which is fair enough if you're backing off - you don't need fuel for that anyway.

Pod filters and CAIs just help you to hear it better.

marky210 · Postby **marky210** » Tue Aug 21, 2007 11:03 pm

Matty wrote:They all do that. You can just hear it now...

can anyone explain this and what causes it :?:

Im just interested in whats making it do this

Cheers,Mark

silvermiata · Postby **silvermiata** » Wed Aug 22, 2007 9:19 am

Mark, i have changed my tyres and rims to 17 inch and i have put on my pod filter. Car makes the popping noise since, and it makes it when i turn the steering wheel in idle....

I have also changed the spark plugs and they were black so my car is running rich. but i still dont know what makes this noise ...any help guys???