List, I don't have this problem yet, knock on wood, but I do have a question regarding it. I realize that 95% of hot start problems are caused by a faulty fuel accumulator. Another cause is a faulty check valve in the fuel pump causing the system to lose pressure also. The other cause is a faulty thermo-time switch causing the cold start valve to fire every time the engine is started, flooding a hot engine. The way to check for this is to unplug the cold start valve when the engine is hot, & if it starts up, the problem is a faulty thermo-time switch. If this doesn't solve your hot start problem, it is most likely caused by a faulty accumulator. It could also be the fuel pump check valve. Now for my question: Is there any way to tell which one is causing the problem, the accumulator or the check valve, other than buying an accumulator & installing it because it is most likely the problem? If there is no way to tell, I'd much rather spend $15 on a new check valve before I spend $110 on a new accumulator if I'm not 100% sure what is causing the hot start problem. John Yeoman