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Old 05-11-2014, 04:54 AM   #1
bking2010
 
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Default Knocking sound help please

Knocking sound on my 96 gt mustang. Can't figure out what it would be please help. Here is the link to the video.
http://m.youtube.com/results?q=shanaeking%20mustang%20&sm=3
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Old 05-11-2014, 01:00 PM   #2
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That doesn't sound good. I would guess a rod bearing or wrist pin.
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Old 05-11-2014, 02:16 PM   #3
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Rod knocking. Sorry. Pull the fuel injector power one at a time with it running, when it gets quieter, that will confirm the knock and tell you what cylinder it is.
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Old 05-12-2014, 10:01 PM   #4
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Quote:
Originally Posted by JC316 View Post
Rod knocking. Sorry. Pull the fuel injector power one at a time with it running, when it gets quieter, that will confirm the knock and tell you what cylinder it is.
+1 def sounds like a rod
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Old 05-13-2014, 12:18 AM   #5
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Well I was really hoping it wasn't a rod =( how expensive would it be to rubuild myself or what's my best options in this situation?
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Old 05-13-2014, 05:18 AM   #6
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Quote:
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Well I was really hoping it wasn't a rod =( how expensive would it be to rubuild myself or what's my best options in this situation?
You can follow my parts selection here: http://mustangforums.com/forum/4-6l-...-2002-a-3.html

A less expensive alternative would be to buy a reman engine. They can be had for $2 - $3K. You can also go the junkyard route but you never know what you're really getting.

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Old 05-13-2014, 07:34 AM   #7
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ok so is "Pulling the fuel injector power one at a time with its running, when it gets quieter, that will confirm the knock and tell you what cylinder it is" a positive way to check and make sure its a rod without screwing anything up completely or is there a better way? I figured if it was knocking that it would do it at an ideal as well?
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Old 05-13-2014, 09:33 PM   #8
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Quote:
Originally Posted by bking2010 View Post
ok so is "Pulling the fuel injector power one at a time with its running, when it gets quieter, that will confirm the knock and tell you what cylinder it is" a positive way to check and make sure its a rod without screwing anything up completely or is there a better way? I figured if it was knocking that it would do it at an ideal as well?
Yes, it's a common method of checking for a rod knock. When you disable the cylinder, it has less load and less knock.

I always go with the junkyard run if I don't plan on building it. I usually go with a crown victoria or towncar engine, they can be had for around $500.
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Old 05-16-2014, 01:47 AM   #9
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Well honestly all I wanted to do was throw a cam in it. I have people saying it sounds like cam phaser or flywheel/flexplate or starter loose cause it does grind sometimes when I start it. But like I said , I know very little.
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Old 05-16-2014, 07:35 AM   #10
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You don't have cam phasers in a 96 GT. If you hear rattle on start up, the gaskets on your cam chain tensioners are likely blown and will need to be replaced. Is this like a starter grinding or is it a rattle immediately after it starts?

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Old 05-16-2014, 07:35 AM
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