valve train noise

[steelzeus]

my vx sounds like a friggin diesel when at idle also if I get it like 3/4 throttle it sounds like a fast clicking noise does anyone know where I can get tappets to adjust the valves I can find everything but them.


thanks mitch

[Joe_Black]

You need shims (that fit into the bucket tappets) to adjust valve clearance and it's typically a dealer part although I believe there's a cross to Toyota shims from the late model Supra. Contact the dealer, get a part number then check with your local parts place.

[Tobert]

Some people here have had some success with changing oil type/viscosity in quieting the engine down, too. I switched to Chevron 15w40 for the summer and it quieted it right down. Others have said that the Mobil-1 SUV formula available in the 5-quart jugs at Wal-Mart does a good job, too. Might be worth a try.

[Ldub]

Although this doesn't sound like it's the same problem, another scource of a "diesel like" sound is sometimes caused by a loose nut (22mm) where the tube connects the exhaust to the EGR valve. (pass. side, top rear intake manifold area)
Not as likely as valve train noise & more commonly associated with supercharged applications, but a possibility.