Metal Clacking noise

MustangDude · 06-26-2005, 05:02 PM

Hey guys, im kinda new here so i figured id start i post. I have a V6 2000 mustang and when i accelerate there is this metal clacking noise coming from the engine and when u accelerate harder the clacking resounds faster. It sounds like two peices of metal clanging against each other. My brother told me it was the valves shaking but im still new to the whole car thing so im learning so i dont have a clue. could someone please help me.

84LX89GT · 07-07-2005, 03:37 PM

It's hard to tell you without hearing it first hand. my first guess would be pinging. Try switching to a higher grade gas (like 92+ octane) and see if it quiets down. Also, if it does it more when it gets warm that's another sign that it's pinging.
Pinging is pre-ignition where there is a hot spot in the combustion chamber (on piston, on valve, carbon built up in bowl area) that ignites the air/fuel before the spark plug fires causing the piston to rock in it's bore causing a clacking noise.
That's my guess, see when it does it more and see if any of this helps. Good luck,

06-26-2005, 05:02 PM	#1
MustangDude Registered Member Join Date: Jun 2005 Posts: 1	Metal Clacking noise Hey guys, im kinda new here so i figured id start i post. I have a V6 2000 mustang and when i accelerate there is this metal clacking noise coming from the engine and when u accelerate harder the clacking resounds faster. It sounds like two peices of metal clanging against each other. My brother told me it was the valves shaking but im still new to the whole car thing so im learning so i dont have a clue. could someone please help me.

07-07-2005, 03:37 PM	#2
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	Re: Metal Clacking noise It's hard to tell you without hearing it first hand. my first guess would be pinging. Try switching to a higher grade gas (like 92+ octane) and see if it quiets down. Also, if it does it more when it gets warm that's another sign that it's pinging. Pinging is pre-ignition where there is a hot spot in the combustion chamber (on piston, on valve, carbon built up in bowl area) that ignites the air/fuel before the spark plug fires causing the piston to rock in it's bore causing a clacking noise. That's my guess, see when it does it more and see if any of this helps. Good luck, __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
3.55:1 rear end noise, is it normal?	Mo65	Classic Mustangs	16	08-26-2002 08:07 AM
Motor back together - strange noise????	DZEE'S LX	Windsor Power	13	03-15-2002 12:46 AM
Calling all Guru's - peculiar noise after injector swap	93GTDIN	Windsor Power	3	01-09-2002 07:51 PM
Rear end Noise or Tranny Noise???	jz_mustang50	Windsor Power	0	10-02-2001 05:21 PM
Air Intake Whistling Noise?!	sgrn	Modular Madness	4	10-25-2000 09:46 AM