jfb93

Ok I had just recently changed my radiator and my serpentine belt again even though I had changed the belt only about a year ago. Car was driving fine for a few days, actually it still drives pretty smooth. My problem is when engine starts cold it starts shaking, not tremendously but enough to know that it's abnormal, as the engine heats up to normal temp the shaking decreases. Before I had taken the car to a radiator inspector and they told me I needed a new heater control valve, they took the HCV out and replaced it with an aluminum pipe. When I brought the car in it was running smooth and when I got the car back the engine shook a lot. I took it to a more experienced mechanic and they told me that the place I took it to got moisture into one of the hose so they cleaned it out for me free of charge. Even with that aluminum pipe the car ran fine for a few days, but now I have the shaking problem, could it be from that or does anyone have any ideas what might be the issue? The car drives fine and the shaking comes in and out at times when the car is idling, only when the engine starts cold it seems to shake more. I mean should I just ride it out and see if it goes back to normal? I'm afraid to drive it because I don't want the issue to escalate. Can someone please help.

Any chance that you could post a pic of the al. pipe? Also check the engine mounts-just a thought.

jfb93, The links may have the solution to your leaking problem? look at all post on subject matter, especially Post 16 in 1st link an Post 3 in the 2nd.

http://www.clublexus.com/forums/sc-400-300...elp-please.html

http://www.clublexus.com/forums/sc-400-300...nt-find-it.html

Thanks for the info, the links are very helpful. At least I know this is a rather common problem. I'll be spending some time tomorrow trying to find the cause.

Where are you located in Md? I'm in Baltimore. I also have a Supra and have a few friends with them around here. Good to compare notes on the cars and I'm always willing to lend a hand on projects.

Greetings, I'm new to this forum so please bare with me if this has been discussed before. I'm also new to the SC300. I just bought the car in Jan of this year and am starting to work on it. Interior needs some help. I removed the front seats to clean the carpet and found a puddle of water under the drivers seat by the rear heat vent. This was after it rained when the car was parked outside. The head liner is dry around the sun roof but I was wondering if the sun roof drain line runs into that area? That is, if there is a drain line. There was also water on the bottom of the drivers side door kick panel at the sill. I checked the door drains and they are all clear. The front carpet is dry but the water is collecting behind the rail where the seat mounts.

Any input would be appreciated.

Thanks, Fred