06 GT Help Identifying knock !?!?

[bigcat]

bigcat.. yes PLEASE let us know what they say... I'm about to schedule an appt. with ford service dept. as well and would love to have some ammo.

Also, on another board someone mentioned that they had read a TSB on this that there is a knocking due to some issues with the variable cam timing. This would theoretically make sense as poor timing advance would certianly cause a knock of the type and vicenity that we are describing.

this could be the noise that maxima is hearing. it could also be the noisy injectors on these motors.

i have an auto i just got it the car has 46 miles on it mine has a ticking /knocking noise when the cars at idle ? does anyone know what this may be

also with the VCT TSB, it says that it is just noise, no real problem with them and it will not cause damage to your engine. let me se if i can find of copy of the VCT TSB.

 

[jzinn]

So I stopped by the dealership last night to let them listen to it (the "master technician that was on hand)... he seems to feel that it's normal and said that his f-150 has the same noise. It was pouring rain so I told him that I would come by when it was dry and we'd fire up every mustang on the lot and if they all made the same noise I'll accept it as "normal", but if they don't then we have something else to talk about (so far I've already checked 3 other cars, no noise on any of them.. not this noise anyway).

He also said that they are backed up 2-3 weeks on heavy line work, so even if they do decide to crack it open I'm going to have to live with it for a while.

Another strange thing occured with this guy. I started the car and explained to him everything I've gone through already in this thread, most importantly that the noise is much louder underneath, but the guy refused to put his head down there and listen. He said, "trust me, the noise will deflect off the fenders and trying to listen to it down there will just screw you up". Now I'm trying to be open-minded and trust his experience, but it would seem to me that if the noise seems to be coming from the bottom you should at least put your ear down there and check it out. So he stood over the engine (where it's much quieter) and proceeded to tell me that it's normal. My statement was, "how can you know since you really aren't hearing it fully from up here"... again he responded with something about his years of experience and how it's not wise to listen from the bottom?????? HUH? What's not wise about trying to listen to what appears to be the source of the noise, but rather stand above the rest of the injector/valvetraine clatter and try and isolate it that way?

Perhaps I should try another dealership.

 

[bigcat]

the MATCO tool guy was at my shop today. i decided to pick up a mechanics stethoscope. when i get my car back from the dealer (and if they dont find/fix my problem), i will look into it myself. the stethoscope lets you pinpoint the sound. for $20, you cant really complain if it saves you extra hassle.....

 

[jzinn]

bigcat - if you are able to find it with that thing and we all get this figured out I'll chip in on the $20... well worth an answer.

 

[jzinn]

Here's a TSB that somebody on another forum dug up for me:

The TSB # is 05-15-8 Try this link to a pdf page

www.***********e.net/mustangs/galaxie/tsb/tsb05_15_08.pdf

or try this if the first doesn't work

http://forums.***********.net/index.php?showtopic=16258&hl=TSB's

 

[5.0ina66]

Most OHC cars still have lifters, and they can stick and make noise. I've hat 12 Nissans with VG30 3.0 V6 motors, and when they're cold, the lifters have tapped on every damn one!

I just got one that had an oil pump problem (regulator was sticking) and when the pressure dropped after you revved it, it sounded like the thing was gonna blow up, and the guy I bought it from thought it had a rod knock. (I got it cheap)

It still makes a little, noise, but no more than my other nissan, and I only have a couple of bucks in cleaning it up

Could be the nature of the beast like these Nissans?

 

[bigcat]

Here's a TSB that somebody on another forum dug up for me:

The TSB # is 05-15-8 Try this link to a pdf page

www.***********e.net/mustangs/galaxie/tsb/tsb05_15_08.pdf

or try this if the first doesn't work

http://forums.***********.net/index.php?showtopic=16258&hl=TSB's

this was the TSB for the VCT i was talking about in this post....

http://forums.stangnet.com/showpost.php?p=6034585&postcount=21

most people cant view the link you provided, because that forum cannot be linked from SN.

 

[bigcat]

GOOD NEWS! i got my car back. the bad news is that they said "unable to reproduce", even though i went for 2 rides with them and i heard it. i dont think that they put much effort into it. they said they would drive a new GT 5 speed and see if it makes the same sound, and also put the stethoscope to it and see what they could find. nothing happened.

i bought a stethoscope from MATCO TOOLS to listen for myself. i had it in the air and heard a knock from the oil pan with the naked ear, but did not hear anything unusual with the stethoscope. same with the bellhousing, sorry JTGrant, i dont have the same noise.

i thought it was the VCT problem, but i hear it in the car around 2500 RPM. the VCT problem goes away at 1200 (as outlined in the TSB). with this information, it leads me in the direction of the valvetrain, even though it comes from the front of the valve (cam) cover, near where the VCT is located. i will have to listen to it with someone running the gas pedal, because i cant rev the engine from under the hood. damn drive-by-wire

if the valve train is the culprit, then i will need all the lifters on the drivers side replaced. i like this better than the cam phaser because if the cam phaser is installed incorrectly, it can ruin your engine. (i read the cam phaser install procedure)

i will update again when i can get someone to run the gas pedal for me.

 

[bigcat]

i re-read the TSB, and edited my post above. if anyone read it already, please re-read it as my opinion has been redirected....

 

[sieben]

I have a 2006 GT manual trans with about 300 miles on it. At idle it has a fairly pronounced knock. The best way to describe it is that it sounds like the worlds wimpiest deisel...almost like a sticky lifter back in the days when we had lifters. It is much more noticeable under the engine than above. I drove over to the dealership and had them fire up a similarly prepared vehicle to try and determine if it was inherent in the new engine design (my dad has an 06 auto -- no noise on his), i thought that i could barely detect it on that car, but no where near as noisey as mine. With that in mind, I have 2 quetions.

1. Anybody have a similar experience, did you have it looked at or look at it yourself, and what was determined to be the source?

2. If this ends up being a rod knock, is anybody familiar with the law regarding something like this? I don't have any interest having them replace on engine, or even crack it open, with so few miles.. that is not why I bought a new car...

We all know how this goes... once you open an engine up it's never the same again.

Thanks for any and all help and suggestions.

(Also, Hi... I'm a new guy.. happy to be here!)

JZ

if it's the bottom end of the engine, I really doubt ford would let the dealership bother with 300 miles on the engine to repair it, they would more than likely just replace the engine.

 

[bigcat]

if it's the bottom end of the engine, I really doubt ford would let the dealership bother with 300 miles on the engine to repair it, they would more than likely just replace the engine.

ford wants to do the cheapest thing. if repairing it is cheaper, then they will repair. they dont like to replace parts, even if they only have 300 miles.

 

[JTGrant]

any updates?

 

[bigcat]

none from me. have not worried about it since then. only 2 months left for warranty, 3 years comes really quickly. time to make a list and take it in one final time. i have not had the car back the dealer since my last reporting.

 

[PUNISHER RACING]

a friend of mine has a 3 valve 5.4 in his F150 makes that same knock at idle but goes away when revved

 

[96Bluovl]

My '07 was/is still doing the same thing. I took mine in to the dealer and had the cam phasers replaced and all lash adjusters replaced per TSB. It sounded good when I picked it up. A week later it was doing it again. It sounds like it's coming from the bottom. Mine only has 5k miles. Been doing it since 3k. It will go back eventually.

 

[tomustang]

*

 

[bigcat]

Has anyone checked their oil level?

every fill up. never moved on dipstick.

 

[Riverart]

Guys,

THis also happend to my 06. I bought it at 6000 miles and had taken it into the dealer for the rear end TSB and fuel pump. I mentioned the tick...they also said it was normal.

It's been happening ever since and I've just accepted it because once the motor warms it goes away. I am no longer worried about it, I just try not to go hard when the motor is cold.

I wonder if it has something to do with the block being aluminum but probably not. My F150 also had a tick.

 

[96Bluovl]

Has anyone checked their oil level?

Seriously?

 

[96Bluovl]

Guys,

THis also happend to my 06. I bought it at 6000 miles and had taken it into the dealer for the rear end TSB and fuel pump. I mentioned the tick...they also said it was normal.

It's been happening ever since and I've just accepted it because once the motor warms it goes away. I am no longer worried about it, I just try not to go hard when the motor is cold.

I wonder if it has something to do with the block being aluminum but probably not. My F150 also had a tick.

Mine does not go away. It is very faint though and most people would not even here or think about it but I hear it.