2001 is300 won't start.
The other day I was driving up the Interstate at about 80 mph, and my Lexus chugged a couple of times. My first thought was tranny, so when I got home I put some Lucas in the tranny. Next day I tried to start it and it would turn over, but seemed like no spark. I listened for the fuel pump, and I could here it prime. Finally started after several tries, but when i went and closed the hood it shut off. After several tries again it started. I started to drive it up the road, and it was sluggish at first, then drove fine. After about 10 min of test driving I decided to see what she could do. So, I stepped on the gas, she started to take off, then died. No sound, just died. Still had power though. Would turn over, but nothing so towed her home.
I took off my MAF sensor and cleaned it. Nothing. I took off the TB, and proceeded to change the plugs. I found there to be oil in the plug channel around the plug holes. I removed as much as I could before removing the plugs. When I did remove them oil was all over the threads, but not so much (I don't believe) on the end. I replaced the valve cover gaskets and plugs, then put it back together. Still would not start. I even double checked my connections. Pulled the fuel pump and cleaned the filter from some minor trash. replaced and nothing. Pulled a plug wire and checked the spark by putting a plug in the end and having someone turn it over (not sure if this is right). No spark. Battery was low from trying to start it so I had it checked at Advance Auto. They told me that two of the cells had welded themselves together, so I bought a new one. Still nothing.
There are many add ons such as a SRT High Flow Intake System with Race ECU, Grounding kit, and a TBKO electronic shift kit. All of this was on the car when I purchased it. Although, it does look professionally done.
Could it be the igniter? I hope not the Head. Any help?
Last edited by jtsayres; 10-22-2010 at 01:23 PM.