Toyota Tundra Forum

The real answer for all these problems/noises is to get a louder exhaust!!! LOL

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2008 Tundra CrewMax 5.7 4X4
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Mods- Homelink Mirror, Expedition One front and rear winch bumpers, PIAA 510 Ion fogs, Backup Camera, Lund Interceptor Bug Shield, Truxxx 3/1 leveling kit, 20% front window tint, 18x9 XD Monsters +18 offset, 325/60 R18 Mickey Thompson Baja ATZ's, DiamondDeluxe 3Hole Dogbox, Bushwacker Fender Flares, Custom Front Emblem, Weathertech front and rear liners, Husky center hump liner, N-Fab textured step bars

lol i did before the tap true dual flowmasters origional 40 series turned down and rear cat delete

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Mine has had a tapping noise since new, and still does @40K miles. My dealer says they can't hear it.So much for dealer support(Gray Daniels,Brandon, MS)

Maybe I am thinking along the wrong lines, but don't the 5.7L motors have overhead cams? If so, then there are no lifters, right?

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what, I should write something here??

According to the engine manual the overhead cams operate a roller rocker arm with a hydraulic lash adjuster. Rather different than most overhead cam engines I have dealt with but these were motorcycle engines with shims for adjustment. Sure glad the 5.7 Tundra don't use this system.
Paul

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07 Tundra, slate metallic, regular cab, standard bed (6.5 ft. long) 5.7 engine, TRD dual exhaust, Steelcraft stainless step bars, Lund bug shield, Carriage Works billet grill insert, Weathertech vent visors, ScanGauge II, Code Alarm remote starter.

I had a bad knock at about 32,000 miles. It took Toyota a couple of weeks to diagnose the problem and order the correct parts. Toyota replaced the VVTI gears and performed a top engine clean. The total cost for this repair was $1699.91, however it was covered under warranty. There is still a slight ticking noise, but nothing like it was. Bottom line Toyota did admit there was a problem and to their credit they fixed it. Please let me know if you guys have any questions.