Thanks gswede, that's reassuring. I'll post back here once the job's done. I sure appreciate you taking the time!

Thanks abscate, I really appreciate how quickly you replied. I'll probably go ahead and change the ECT.

Hi I have a Volvo 850 estate, 1997. The engine is the B5252s. 2.5L Petrol, non-turbo. It won't hot start some of the time. It cranks but won't fire. Cold starts are 100% OK. Occasionally, it hot-starts OK too. But it's let me down in gas stations and outside stores where I've just stopped for a few ...