My 2008 F150 King Ranch will not start when it get's below 20 degrees--works fine when warmer outside. New battery and cranks fine--thoughts?
Asked by 2008F150 Jan 19, 2016 at 09:05 PM about the 2008 Ford F-150 King Ranch SuperCrew SB
Question type: Maintenance & Repair
When we tried to start it the other day after sitting outside in 15 degree temp--
no go. Towed it to the garage, it sat inside and 5 hours later started right up.
Any ideas?
3 Answers
Yes - add a block heater and if you can, park it in a garage at night.
Calvinator answered 8 years ago
A Block Heater is a must and if you can get a truckers blanket and cover it at night. Also check relays.
Calvinator answered 8 years ago
As temps. drop the resistance of the primary circuit reduces rapidly so at 20 degrees the instantaneous current increases. At subzero temps. a temperature controlled resistance introduced into the ignition primary circuit has successfully solved this problem
