vandalyze Posted September 22, 2006 Share Posted September 22, 2006 I have an IS350, and the engine sounds like a diesel engine. It has two noises. One is a "knocky" noise and the other is a "clicky" noise. I think the "clicky" noise is the solenoid, but what about the "knocky" noise? I use premium gas, so it can't be the gas. It sure doesn't sound like a G35 or BMW 330. Is this normal for IS350? Thanks. Link to comment Share on other sites More sharing options...
bartkat Posted September 22, 2006 Share Posted September 22, 2006 Not sure about the knocky noise, but the clicky noise is normal. Its the high pressure fuel pump for the direct injectors. Link to comment Share on other sites More sharing options...
Rx330driver Posted September 22, 2006 Share Posted September 22, 2006 yes all i know is that it could be the fuel injection...thats how they explain any ticking noise from the car. Its probably normal though, bring it into the dealer next time if your not sure Link to comment Share on other sites More sharing options...
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