Originally Posted by Concillian
Seems a lot easier to just plumb a solenoid line into the intake manifold and start it on propane (like those small Coleman propane canisters)
Heating the entirety of your fuel tank takes a LOT of energy. Heating the intake manifold is more practical, but you're still likely plugging something into the wall.
I think plumbing in a little Coleman bottle is the ultimate solution. There's solenoids available for RVs and such, and all you'd really need is some line, a fitting, one of those solenoids and a normally closed momentary relay on the 12v acc. That opens for some adjustable amount of time when it gets power.
Anyway, I live in CA, so it's not a big deal, but that was what I would try if I lived somewhere that gets lower than the ~25F it sometimes gets around where I live. I quickly came to the realization that heating anything would take a crap-ton of energy and was only practical via extension cord.
- Get one portable propane torch and pliers.
- Pop hood and pull big vacuum hose off brake booster.
- Insert propane torch tip into brake booster hose.
- Crank propane to full open.
- Take your time getting back in the driver seat so it can load up with gas.
- Crank the engine, it will start instantly.
- Quickly go back under the hood shutting the propane valve and reconnecting the brake booster hose.
- Explain this daily operation to your co-workers as they stop to help when they see you fooling with things under the hood and its 10*F outside
For the first couple years I had my car I did it like this. It will start on propane INSTANTLY regardless of how cold it is (tested to -0F). Only needs to get running for a second and you can shut the propane off. Just the heat from a few combustion cycles will get the combustion chambers hot enough to promote good enough fuel suspension of E. I fought cold starts with E winter 2009 and 10. Since then the code for cold cranking and warm up enrichment has been cracked and written to the tables in RR. Also got some big injectors helping things now, so far no issues, but its early in winter and has not dropped much below 30....