knocking sound on cobra

S

SLVRBOY

Member

Apr 7, 2005

91

0

6

st. augustine , fl.

Nov 3, 2005

#1

• Nov 3, 2005

• #1

i have a knocking sound coming from inside the drivers side valve cover. its when the car is at idle and when the rpms are dropping , it seems to get louder with lower rpms
or maybe i cant here it as well through the motor and exhaust. i changed the valve springs and rockers on my 92 5.0 but i dont know that much about the 96 cobra.
i only drive it once every week or two and it was only once a month for about 3 months . anyone have an ideas.

thanks, bryan

 

missouri_guy197

New Member

Aug 31, 2002

1,441

1

0

St. Louis, MO

Nov 4, 2005

#2

• Nov 4, 2005

• #2

Is it coming from the valve cover or more from the front cover? If it's coming from the front cover your timing chain tensioner might be going out...I had one start going out at the beginning of this past summer and had to replace it...It's a pretty time intensive job to replace too, but not really that difficult...The valve covers have to come off, all the accessories have to come off the front cover and the front cover has to come off to get to them...I probably put about 12 hours into replacing them taking my time over about 2 weekends...

 

S

SLVRBOY

Member

Apr 7, 2005

91

0

6

st. augustine , fl.

Nov 4, 2005

#3

• Nov 4, 2005

• #3

its comming from the valve cover.
i guess ill find out in a few weeks when i get a chance to fix it.

 

SVT98Snake

New Member

Apr 15, 2005

258

0

0

OK, USA

Nov 14, 2005

#4

• Nov 14, 2005

• #4

it could be the tick.

 

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genoapb

New Member

Oct 31, 2006

4

0

0

Michigan

Oct 31, 2006

#5

• Oct 31, 2006

• #5

I know this is an old post but it turned up in a search I did and describes the exact same noise im hearing from my 98 cobra. Anyone ever fix a problem like this or have any more suggestions. I am also completely new to this type of motor as im used to the old push rod type. Any help would be greatly appreciated. Thanks

 

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genoapb

New Member

Oct 31, 2006

4

0

0

Michigan

Nov 7, 2006

#6

• Nov 7, 2006

• #6

I found a video that sounds very close to my engine. Mine just not quite as bad but it still sounds like a bad rod. What do you guys think? http://videos.streetfire.net/search/mustang/11/2d715f7a-5a64-487c-9750-985000e9ed93.htm

 

TheCrazy1

New Member

Dec 8, 2003

70

0

0

Nov 17, 2006

#7

• Nov 17, 2006

• #7

Ah yes, I agree... definately a rod knock. Oh well, chance to rebuild or replace and supercharge!

 

95 yellow 5 0

Founding Member

Feb 16, 2002

627

0

16

CT

Nov 17, 2006

#8

• Nov 17, 2006

• #8

and that is the reason why the 98 is gone and i have an 01 now....
either dump 3-4k into the 98 which is losing value quickly or get into a newer car. depends on your $ situation, if you gotta lien on the car, etc. etc.