FliteTime

Hey LexMan96, I'd like a copy. It will work on a 1999 GS300, right? cliffynator@yahoo.com

ok, I'll look into it. Thanks!

Thanks for all the input! I checked up on that valve job, turns out it was the 60k mile scheduled maintenance: a valve adjustment. I keep putting premium in there, and I think the noise is going away. Guess you can't get away with being cheap on a Lexus. I can hear the noise from outside only, like when I have the windows down. When I start the car, I can hear the noise bouncing off my other car. When driving past a high curb or pass parked cars, I can hear the noise then, too. With the windows up, I don't hear it. I'll get some injector cleaner to help out. I heard a mechanic recommend Amsoil PI (Performance Improver), but even my local NAPA store doesn't carry it. It's selling for $7.70 at the Amsoil website. Do you guys have a recommendation, and isn't seafoam fuel injector cleaner made for marine engines only? By the way, putting a screwdriver to your ear with the pointy-end against your valve cover IS a good way to listen for knocking over each cylinder.

Hi All! I bought a '99 GS 300 a year ago and just broke 100k miles. I'm worried about what I fear is a knocking under the hood. I have put both premium and regular gas in there, and the knocking goes down with premium, but it IS still there. I think the previous owner was putting regular in, too, that might have caused years of deposits to form. I know the car did get some kind of serious valve job right before I got it. A mechanic recommend Amsoil P.I. to clean a stuck EGR valve might solve the problem. I hope it will be that easy. Do you think regular gas is an issue? Don't most cars recommend premium only to command a "premium" price and image? The car also needs to go in for the 90k checkup. I feel like I'm on borrowed time without replacing the timing chain yet, and it bothers me every time I drive. The trouble is finding the time. I'd appreciate your input. Thanks! --c