Toyota Tundra Forum

It sure looked like it had a blue tint to me. I created a new thread with a title that may get someone to answer if they have seen this as well. Would using a 10% ethanol mix cause the smoke to look any different or maybe cause it to smoke more? Thank you for the welcome and the quick response,.

These 5.7 are louder than what we have been used to/ the pistons and engine block are made of 2 diff. Materials. When started the pistons get larger (swell) to fit the cylinder bore size. The piston skirt on the 5.7 is a lot shorter than what we have seen before in a toyota engine. They do this to reduce drag and keep constant temp when running/ it gives a longer engine life/ / i see every toyota that comes through our doors on a daily basis. I have only seen 1 engine concern with 5.7 . This is my 4th tundra, it has been the loudest 1 i have owned, but seeing tundras everyday and listening to other peoples tundras i wouldnt worry about it. Just drive it.

Hello all - I'm also aware of the noise you speak of but I'm experiencing a noise from the engine compartment that mimicks an exhaust leak at the manifold or more accurately, mimicks the noise of a valve train getting ready to blow the hood off my 2008 5.7l 4x4 tundra. The noise just started and the truck has 22,000 miles on it. Its loud, nasty and happens only when the truck is in drive and accelerating and beginning after changing into second gear. The warmer the engine gets the louder the noise and it does not go away. It will not make the noise what so ever if in park and pushing up the rpm's. Oil level is correct, pressure is fine and no check engine light is coming on. There seems to be no performance issues either and gas mileage has been consistant since I bought it new. Taking truck to the dealer soon so I wanted to post this before I did in hopes someone could enlighten me w/ a possible explanation. Thanks.

RONSTER - welcome to the forum! Always nice to have another Toyota Technician on the forum. Thanks for the information.

cjcanu01 - Welcome to the forum also. No idea on that noise - let us know what the dealer says.

re.ac.tor

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'10 CM SR5 4x2, S.A. Built & Purchased Sept '09, 5.7L, Sandy Beach Metallic, Drug Information in Lay Language

Howdy top both RONSTER and cjcanu01, and welcome to TTZ. Glad to see both of you found us and hope you'll stick around and join right in. Each of you should also consider posting over in the New Members forum, telling us a little about yourselves and allowing everyone to more formally welcome you!

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2007 Tundra Limited Double Cab 4x4 Super White
Volant CAI
Pioneer AVIC Z-2 (hard drive upgrade to AVIC Z-3)
Key FOB Tailgate Lock (courtesy of Toxarch)
OEM back-up camera w/flip down monitor microswitch mod
Sirius Satellite Radio
WeatherTech Floor Liners
20" OEM alloy wheels
Line-X Bed liner
UWS Black Powdercoat Low Profile Toolbox
DU-HA underseat storage unit
JC Whitney Black Nerf Bars
Lund Interceptor II Bug Shield
Tekonsha Voyager Brake Controller

My 07 has 112,000 miles and still makes that same noise. Just in case yall were wondering if it stopped at a certain mileage.

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I'm only here, cause I'm not all there!
If you can't be a good influence, be a bad example!
5.7 D-cab
Tow package, back up camera w/ 3" screen, Prodigy brake controller, chrome running boards, heated tow mirrors, 18" polished enkei wheels, rubber bed mat, 3" Toytech lift w/ add-a-leafs, diamond plate lowrise tool box, Thule ladder rack, more to come!
Parked next to a dodge?

Any update on what is causing this noise? I have an 08 double cab, 16K miles, took it on a trip from NJ to MI to St.Louis then home to NJ during the holidays and experienced that same noise. You described it perfect. Dealer says no issues, but it has occurred again on a few occasions. I was wondering if it was a knock from poor gas? Noise happens when accelerating at speed, engine fully up to operating temp.

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Keith in NJ
2008 Tundra Double Cab
Nautical Blue