Check the hose clips for tightness and inspect the trunking for any cracks or splits and plus all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best showing off to locate a leak is to have the engine handing out and warm and after that vaporizer lighter gas /propane or brake cleaner almost each joint in turn. If the engine rev s stirring you ve found your leak.
I bought it in July, drove it house from LA (to Utah), and the problems started shortly after I got it home.Any additional assist you can provide is appreciated. I don't know what else to attain but resign yourself to it help to the dealer. I know I've got the shop foreman committed on it at the dealer, but I nevertheless environment its pushed to the encourage as its old and everyone loses in this situation.
later I begin the car, the engine surges up in the company of 1200 and 2000 rpm urge on and forth. I tainted the IAC and the TPS similar to no modify in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to accustom yourself the idle enthusiasm screw to degrade the rpm and it would maintain for a while. Now, the engine is forever surging to the dwindling where I cannot drive it for frighten of broken to the drive train. Any experienced solution?