Hears a good 1 for ya.....
03-10-2007, 02:01 PM
#1
Hears a good 1 for ya..... im actually stumped as hell on this....
i pulled my air pump few weeks ago...ALL of it...
and i started getting a ticking sound from the drivers front of the car....ONLY when in drive and when im pushing the gas....
NO ticking while in neutral/park...so i thought it was the TC...NOPE, just rebuilt my A4 two days ago...and it shifts like a rock now...but thats a story for another time
the ticking almost sounds like a injector but its very loud, to where i can hear it over my cutout....also if i power break the car in drive....there is no ticking....SOOOOO this IMO rules out in internal engine problem...
my guess would be something in the front suspension or wheel hub...BUT why would it not make the sound when im just rolling along not hitting the gas?!?...
lets see who can come up with some good answers....
i pulled my air pump few weeks ago...ALL of it...
and i started getting a ticking sound from the drivers front of the car....ONLY when in drive and when im pushing the gas....
NO ticking while in neutral/park...so i thought it was the TC...NOPE, just rebuilt my A4 two days ago...and it shifts like a rock now...but thats a story for another time
the ticking almost sounds like a injector but its very loud, to where i can hear it over my cutout....also if i power break the car in drive....there is no ticking....SOOOOO this IMO rules out in internal engine problem...
my guess would be something in the front suspension or wheel hub...BUT why would it not make the sound when im just rolling along not hitting the gas?!?...
lets see who can come up with some good answers....
03-10-2007, 02:27 PM
#2
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So this started immeaditly after you pulled the AIR system? If so, the first thing I'd look at would be the block-off plates/gaskets you used on the manifolds/headers.
A small exhaust leak can often be heard only under load (i.e. giving it gas in gear). Free revving will not always produce the tick. As for not hearing it while power braking, this is still not quite the same type of load the motor is under when the car is accelerating in gear. I can tell you from experiance, that a minor exhaust leak will sometimes only be heard under acceleration and not even while power braking. I've been though that before on my 3rd gen.
Have you changed spark plugs recently? If a plug came a little loose, it'll tick usually only under the sort of load that you've described.
One thing I can tell you for sure, if the sound goes away when you're coasting and comes back only under acceleration, it doesn't sound like a suspension issue to me.
A small exhaust leak can often be heard only under load (i.e. giving it gas in gear). Free revving will not always produce the tick. As for not hearing it while power braking, this is still not quite the same type of load the motor is under when the car is accelerating in gear. I can tell you from experiance, that a minor exhaust leak will sometimes only be heard under acceleration and not even while power braking. I've been though that before on my 3rd gen.
Have you changed spark plugs recently? If a plug came a little loose, it'll tick usually only under the sort of load that you've described.
One thing I can tell you for sure, if the sound goes away when you're coasting and comes back only under acceleration, it doesn't sound like a suspension issue to me.
03-10-2007, 02:47 PM
#3
me neither, i havent changed the plugs in a while...but there iridiums so i havent needed to...
the block off plates had gaskets and were tightened down pretty good...but for the hell of it i might just make another set and put them on...see if theres a difference....
i had one of my friends who's a mechanic at mazda (i know its mazda)...ride around with me and he couldnt figure it out either...
its hard to pin point considering the gas has to be being pushed AND the car has to be moving....
the block off plates had gaskets and were tightened down pretty good...but for the hell of it i might just make another set and put them on...see if theres a difference....
i had one of my friends who's a mechanic at mazda (i know its mazda)...ride around with me and he couldnt figure it out either...
its hard to pin point considering the gas has to be being pushed AND the car has to be moving....
03-10-2007, 07:05 PM
#4
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Originally Posted by staringback05
its hard to pin point considering the gas has to be being pushed AND the car has to be moving....
Just like yours, I could only hear the leak under acceleration. Free revving, power braking, etc., did not reproduce the sound.
My line of thinking is, since this happened right after you pulled the AIR system, it most likely has something to do with that. So I'd start by rechecking the blockoff plates and gaskets, make sure they are seated and sealing properly and such,....
