Ms6 Valve Tap...Normal??

[kev]

I own a 2006 Mazdaspeed 6. I've owned the car for a few months now...however I popped the hood while the car was running today and heard a fairly noticable 'tapping' noise coming from the top LH side of the engine (near throttlebody). Kinda sounds like a valve tap but may be just a strong injector pulsing noise? Is this normal? I figured I'd ask you guys before bugging the dealer again.


kev

 

[Boosted24]

It could be the direct injection it will sound like a strange tap

 

[kev]

It may be. The tap goes away (or is overshadowed) when I hit the gas. It's only at idle and I can't hear it in the car. But is very noticable when the hood is open.

kev

 

[superskaterxes]

thats the same side as the timing change. i hear theres problems with the tensioner and it makes this noise. get this checked out right away.

 

[ms6_ftw]

the serpentine belt tensioner went bad in my car and i had the noise you described...

 

[kev]

No it's coming from the LH side of the car (left as in sitting in the car, left). So it's opposite from the serp belt, its on the tranny side.

kev

 

[Drover]

i lost mine, but only time i would hear it is when i first start the car, it would make a nice loud rattle lol

thats the same side as the timing change. i hear theres problems with the tensioner and it makes this noise. get this checked out right away.

 

[Matt'sSpeed6]

i lost mine, but only time i would hear it is when i first start the car, it would make a nice loud rattle lol

Drover:

Did this get a LITTLE quieter as the car warmed up???? I have the EXACT same sound - most noticible at cold starts. I would consider it a rattle or "ringing" sound.

M.

 

[Matt'sSpeed6]

No it's coming from the LH side of the car (left as in sitting in the car, left). So it's opposite from the serp belt, its on the tranny side.

kev

kev:

It could be the high-pressure fuel pump for the direct injection. At least that is what Mazda will tell you.....

M.

 

[bova80]

its most likely the fuel pump. since it is high pressure it will make a clicking noise. your car is functioning normally.

 

[menaspeed]

it's 1800 psi thats the sound you hear by what your saying . mechanical fuel pump it's normal

 

[TRXSandRacer02]

it could be a faulty intake as well with loose valves in the intake for the intake manifold runners, also could be a high pressure fuel pump, or could even be a purge solenoid, take it to the dealer if its under waranty or pm me and i can check your waranty coverage