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Old 21-09-2014, 05:12 PM   #1
lam
Junior Member
 
Join Date: Sep 2014
Location: Melbourne
Car: Mazda 2003 Astina
Posts: 4
Tapping noise and hesitation. BJII

Hey everyone.

Car - 2003 Mazda 323 Astina 1.8L Auto.

I've got a tapping noise coming from my intake manifold similar to this: https://www.youtube.com/watch?v=_O8qSw4dxII

This noise went away for a bit when I taped up the cracks along my intake pipe which has been causing a huge vacuum leak for a while, this also made my car run much more smoother and had more power.

The noise and sluggishness soon came back even though I have now replaced the intake pipe.

However, I was trying a few things around this time like high octane fuel and a fuel injector cleaning additive, so i'm not sure what the temporary fix was.

Also, I had engine pinging under acceleration before patching up my intake pipe, this pinging also happened to have come back along with the above noise. I have double checked that I installed the hose properly and that it's free from cracks.

Do I still have a vacuum leak somewhere? it does hesitate and feel a bit rough.

Cheers guys.
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Old 22-09-2014, 06:59 AM   #2
bathtub
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Join Date: Dec 2012
Location: Adelaide, Australia
Car: Ford Laser SR2
Posts: 105
My throttle body gasket **** itself a while back and that caused similar symptoms. It was letting in unmetered air after the MAF sensor so it was leaning out. That would probably cause the pinging!
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