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Club Lexus There is a thread there, try ECU temp sensor, you have poor gas milage as well?

suction or pressure Are you sure it's not pressure instead of vacum? Caps are designed to minimize a vacum situation via a check valve.

This not a starter or ignition problem and as long as the tepm is cool and there is not a lot of sun shine the car fires up just fine. I may have found a clue with the fuel cap, after setting in the sun all day I open the cap and released a postive pressure ( not a vacum ) from the tank. The...

fuel cap I have unscrewed the fuel cap after the car had set in the sun most of the day and there was definetly positve pressure in the tank, attemted to start but with the same problem and noticed it was very rich with fuel. The next day I left the cap loose all day and went to start that...

OOPS maybe not the problem after all.

Cold Start Injector Problem I am not sure what signals this additional fuel injector, but I disconnected the vacum source to it and it now starts up instantly in warm/hot weather.

Thanks for the extra effort you put in to you DIY !!!

Thanks Thanks to all, diffintly not the starter, changed it out a will back and turns over just fine even when engine is HOT, I'll try the fuel cap vent, thtas easy enough, I'll also do a fuel pressure check and let you know what's up with it.

The car has 210K and runs and starts great with one exception. During the initial start up or after it has set a couple of hours and the ambient air temp is above 50-60 deg. The engine will make several ! revolutions before firing up. You can turn it off and it fires right up. When it's cold out...

I have done plugs wires, no coil check, I will dig into it a little futher when I get some warm weather, fixin to get slamed with weather here in MID TN, Thanks again !!!!!!!!!!

Ls 400 Thanks for the response !! I changed the starter a couple of years ago. The engine always turns over it just will not run untill several !! revolutions when the outside air temp is warm 50 or so deg's on up, on the initial start, at that point it will restart no problem untill it set...

When the air temp is above 50 deg's or so the car will not start untill several revolutions, You can turn it off and it fires right back off as long as it dosn't sit for a couple of hour's, when it's cold outside it always fires right up. This fine car has about 207,000 K and is in very good...