I have a wonderful 2000 XC70 that I've owned since new. Kind of a rare bright red/tan interior combo. The car has only 87K miles and all original paint with no rust ever. My problem occurred when it got harder to start than usual. Brought it to the local Volvo dealer and they replaced a corroded wiring harness off the battery. Still hard to start. So back to the dealer and diagnosed low fuel rail pressure. Instead of replacing the fuel pump (and dropping the fuel tank) I opted for the check valve in fuel line fix. Good pressure now but... now if the car is driven and sits say 15/20 minutes, it will crank but not start. Back to the dealer who replaced the immobilizer ring and reprogrammed the key. Still...it is essentially doing the same thing. Runs perfectly and idles great when it starts but has a consistent problem when it sits for 15 or so minutes and then won't want to fire. I've tried different keys with the same result. Is it the immobilizer again? I love the car but it has to be more reliable. Thanks for any insight. (I even bought a scanner to read the fault codes but haven't received it yet.) Pat
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