Again..ticking noise

A

American_Muscle

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May 9, 2005

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Oct 21, 2006

#1

• Oct 21, 2006

• #1

Hey guys

I see a lot of threads about ticking noises.

Mine started a couple weeks ago.

It's a slight ticking sound at idle and gets pretty loud at about 2200 rpm.

Thing is it goes away at WOT. Then when I let off you can hear it for about 1 sec, it goes away and comes back shortly after.

Could it be something internal?

A mechanic said it might be a valve adjuster/lifter because it goes away at WOT.

Thanks
Patrick

 

BurningRubber

10 Year Member

Dec 6, 2004

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Oct 21, 2006

#2

• Oct 21, 2006

• #2

Spark plugs tight? Im sure they blow out at WOT if they were loose enough to rattle around though.

 

A

American_Muscle

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May 9, 2005

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Oct 21, 2006

#3

• Oct 21, 2006

• #3

I've thought about that too...but why would it go away when I give it a bit more gas?

I've driven her maybe 25 miles since the noise started so I don't think it would have a chance to blow-out.

Thing is..it would rattle all the time wouldn't it?

I did, however, change the spark plugs and didn't torque them down to spec when I put them back in. I just tightened them nice and snug.
I had trouble with the coil popping out of one of the boots too.

But again..would the noise go away at wot?

 

DBMSTNG

I fantasize about it being BIG!

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Apr 23, 2002

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Oct 21, 2006

#4

• Oct 21, 2006

• #4

my neighbors 99 Cobra was like that. turned out he fried his crank bearings.

 

Stangsgrl

Member

Mar 13, 2004

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Mesa, AZ

Oct 21, 2006

#5

• Oct 21, 2006

• #5

Yes check your spark plugs. I had a ticking for like two weeks and i noticed it was getting worse and had scheduled to go to the shop in 2 days since we thought it might be a vaccum leak...then blew a spark plug. So the shop saw my car earlier haha.

 

A

American_Muscle

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May 9, 2005

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Oct 22, 2006

#6

• Oct 22, 2006

• #6

Alright well the guy who was looking at it said the plug on cyl #3 was loose as ****.

He tightened it up and said it won't tighten all the way. It backs out pretty easily.
Does anybody think the threads in the head are screwed up already?
I don't think it blew. Never really lost compression.


So I'm praying to God that that solves the problem.


BTW..which NGK spark plugs are recommended for a supercharged 4.6l?(pushing around 355 rwhp)

Thanks
Patrick

 

RedDaemon

10 Year Member

Mar 31, 2005

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Atlanta, GA

Oct 22, 2006

#7

• Oct 22, 2006

• #7

lol ya kinda have to laugh at spark plugs commin loose when theyre only screwed in finger tight.

 

Mike97gt

it doe snot

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Jan 26, 1999

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Oct 22, 2006

#8

• Oct 22, 2006

• #8

If the threads in the head are screwed up you can do one of the insert kits out there. It's a lot cheaper than buying a head.