5.2l voo doo

[DNelly]

Since I've received the car, I've noticed a 'rattle' or 'clatter' from the engine. It is most noticeable when cold and does decrease a little after it is warmed up. Audible under light acceleration starting from about 1800rpm and continuing up to around 3000 until you can't hear it for exhaust noise, etc. It is loudest at about 2000rpm and will get slightly quieter if the throttle is backed off very slightly. This is right at cruise in 6th gear, too. Having built a lot of engines with pushrods, it sounds to me like valve train noise. On the other hand, I've not had much experience with OHC engines, so I'm not sure. Also, I've not heard valve train noise be rpm dependent. It doesn't seem to be detonation, which can be rpm dependent, since I've monitored the AFR and it looks fine. So, with this new engine, is this noise normal? Piston noise? Can any one answer me? Oil pressure and temps are fine and it goes to redline easily. Thanks

 

[AustinSN]

Can you take a video?

 

[bretlasalle]

Mine has tons of clatter, especially when cold. Really not sure what to do, frankly I'm not worried about it.

 

[Tob]

 

[boss#301]

Have the same thing!!! Really interested in this topic

 

[GT Premi]

New car settling in. If the "rattle" doesn't change pitch with engine RPM or relative to engine RPM, it's more than likely just the exhaust heat shields. If that is the case, it will go away in a few hundred miles after the shields have been heat cycled enough and enough rust has formed on the exhaust fasteners. The same thing happens with most brand new vehicles.

 

[bretlasalle]

I have just about 600 miles on mine and it's still making the noise. I DD mine so I'll report back if it goes away on it's own.

 

[krt22]

lifter noise?

 

[Tob]

lifter noise?

It isn't going to be easy to get any official confirmation but there was word of an oiling issue and your query would seem relevant. I was told that the "oil control" issue was witnessed on R models at high G's. How that relates to non-R models I cannot say but my understanding is that cars were somehow retrofitted to address the issue. I'm not sure if the following "hold" for the R model was related to what I had been told...

We also heard about sky high oil temps from a few journalists which has yet to bloom into an issue that everyone is familiar with. Maybe this coming summer when more of these cars are out there being tracked in extreme heat. There's an interesting separator recommendation in the owner's manual as well (second note at bottom).

 

[1stShelby]

Mine makes transmission noise in 1st and 2nd gear before the engine note overwhelms it. Like a bee submerged in tranny fluid.

 

[Voltwings]

Does it sound like a lightweight flywheel? I know light aftermarket ones can chatter like hell at low RPMs, and isnt the one in the 350 relatively "light" by OEM standards?

 

[kgschrader]

The car in question is mine.
My dealer kindly posted the information about the noise.

I'm taking it in this morning for them to listen to it. I'll let y'all know what I find.

Thanks for the suggestions. By the way, I have 1200 miles on it. Still has the noise.

Kirby

 

[kgschrader]

I'm taking it in this morning for them to listen to it.

Had to book it for Monday.

 

[kgschrader]

To answer others....

- I'm certain it's not the flywheel. I have three other cars with lightweight aluminum flywheels and besides, the noise comes from up front.

- The suggested few hundred miles isn't working as I have over 1200 miles on it and the noise is the same.
- It is definitely louder when cold, but never goes away.
- As for lifter noise, I know for certain what roller lifters, hydraulic rollers and solid flat tappet lifters and pushrod engines sound like. The other cars have them. The Voodoo is OHC, so I don't know what 'lifter noise' would sound like....
- I can't relate the information about the oiling issue to what I'm hearing. Haven't had it on the track yet. I use it for a daily driver.
- I've seen the thread comparing the GT500 and the GT350. Traded my '13 GT500 with 65,000 miles on it for the GT350.
No comparison when it comes to getting the power to the ground. Others have already commented on this.
Coming home from work today, the traction control was blinking all the way through 1st and 2nd on a nice back road. The ass end was getting loose, but I felt like I had complete control. With the GT500, I always felt like it was going to bite me any moment. Yeah, it's probably faster in a straight line, but I like the all around driving control the GT350 gives.

FWIW,
Kirby

 

[Imatk]

Yep I've had a few of those "OH SH**" moments in my GT500. Mostly in cold weather... but it WILL bite you if you aren't careful.

 

[kgschrader]

Had to book it for Monday.

They didn't hear what I hear.
I'm going with forged piston noise until I hear different...

FWIW,
Kirby

 

[cluscher]

Interesting how the dealer rarely hears or feels what you do until the third or fourth time. Post a video...will be helpful to hear what you're hearing.

 

[DSG2003SVT]

Twin disc clutches can make some noises similar to what you're describing.

 

[Gabe9195]

When the Boss302 first came out Ford issued a Special Service Message advising dealers about the noise the forged pistons can/will make.

Sounded like a very similar description of what's being discussed here.

Sounds like another SSM is in the making ...

 

[CobraRed01]

Shouldn't the forged piston v. cast block noise disappear after the engine comes up to operating temperature?