Darrin; The valve in the rear compartment that you see is the fuel filter. The Hot start problem is very common with Deloreans. The fix for that is to replace the fuel accumlator. It's not that hard a job,and the parts can be ordered from any of the Delorean parts guys. I ordered mine from Jerry Rine in Newark,Ohio ( 1-740-366-5587) and had it in two days. This valve can be accessed thru a small opening under the car which is between the seats. Take your time and keep a can handy to catch a small amount of gas when you pull the rubber line off. Use caution and make sure all the lines are tight and leak free when your done. Good Luck Richard J.Myosky Vin.# 4419 > The only thing I haven't checked is a valve at the > back of the engine (looking at the engine, there's a > valve on the engine wall at the rear left - > > Darrin Jacobs > > >