2003-04 Mach 1 Registry Owners Club

2003-04 Mach 1 Registry Owners Club (http://www.mach1registry.org/forums/index.php)
-   Engine & Drivetrain (Including trans & rear axles) (http://www.mach1registry.org/forums/forumdisplay.php?f=64)
-   -   Lifter tapping noise ! (http://www.mach1registry.org/forums/showthread.php?t=136198)

03Shadow Grey 10-11-2017 09:36 PM

Lifter tapping noise !
 
I know these engines do not have lifters but that is what it sounds like.
I have read a lot of the searches on the dreaded Tick and they don't compare with what mine is doing.
It is quiet at start up and idle but when I take off in first through fifth at around 2 k and climbing under load I hear it.In all gears if I stop climbing and stay at a particular rpm its gone but if I get back on it to go, there it is. Kinda like the old lifter tap when the timing was off. I took it to the muffler shop hoping it was just an exhaust leak and they found none, Any suggestions would be much appreciated.

01yellerCobra 10-11-2017 10:06 PM

Does it make the noise if you rev it up in neutral? If so break out a stethoscope (aka long screw driver) and see if you can pin point it. I had main tensioners go bad that would make noise at random times.

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03Shadow Grey 10-12-2017 08:10 PM

Re: Lifter tapping noise !
 
No, no noise at neural. It has to be under a load , idling or coasting at constant speed wont make it happen but thanks for the suggestion.

HAEG 10-13-2017 07:45 AM

Re: Lifter tapping noise !
 
Just throwing this out there, is the A/C (defrost) on? I was thinking the tensioner was going bad on mine, but when I shut off the A/C the noise went away. Sounds like my compressor is going bad. Just a thought. Curious what the solution is for you....


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