Hello members. Our 1999 LS 400 was making a loud sucking noise on the first four gears, but quieter in fifth. I replaced the round intake air filter, cleaned the housing, same noise. I removed "air intake inlet muffler resonator" aka....Snorkel leading to the intake manifold and discovered the last mechanic had forced it on and the rubber seal under the hose clamp had been distorted and folded toward the radiator, restricting air flow and not sealed properly. There is a notch at the top of the seal which was torn, so contacted our local Lexus parts department, only to learn the seal is serviced as part of the snorkel and sadly, all of it no longer manufactured. I had to turn the seal 180 degrees and cut a new notch on that side, cleaned all surfaces, used a rubber cement to hold the altered seal in place, sprayed silicone on the receiving tube and with a lot of struggling, got it back on. I think my idea has failed, as the motor is roaring again. There is not enough room under the manifold inlet for the snorkel to be easily slid on. Can anyone help me with a better or different seal and how to slide the snorkel on more easily? I might consider a complete snorkel new or used PN 17875-50160.
1997-2000 Lexus LS400
6 Cyl 4.0L
1UZFE; 1UZFE; UCF20L-AEAGKA,
This is not like Lexus; the seal should be sold separately and if they can't make anymore, the least they could do is offer the design specs to an aftermarket company. Thanks, Wayne