My guess is that there is water in the fuel tank and it's freezing, blocking flow.
If it sits in a warm shop it thaws out until it's driven outside and freezes again.
You can tee in a vacuum gauge to the suction side of the lift pump to verify if there is a inlet restriction while the problem...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.