Check the hose clips for tightness and examine the trunking for any cracks or splits and moreover all the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best quirk to locate a leak is to have the engine doling out and warm and then vaporizer lighter gas /propane or brake cleaner all but each joint in turn. If the engine rev s happening you ve found your leak.
I bought it in July, drove it house from LA (to Utah), and the problems started rapidly after I got it home.Any other put up to you can offer is appreciated. I don't know what else to pull off but bow to it encourage to the dealer. I know I've got the shop foreman involved on it at the dealer, but I still vibes its pushed to the back up as its old and everyone loses in this situation.
when I begin the car, the engine surges stirring in the midst of 1200 and 2000 rpm help and forth. I changed the IAC and the TPS past no fine-tune in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to familiarize the idle speed screw to lower the rpm and it would preserve for a while. Now, the engine is for ever and a day surging to the dwindling where I cannot steer it for startle of damage to the drive train. Any experienced solution?