will not start
when the temp. outside is below 32 F the truck will not start. it cranks but will
when it is warmer it starts right up and runs like a top.
Does this have a carburetor or is it injected?
Possible weak spark, look at the spark from the coil wire, make sure it is a white, blueish in color, not yellow orange. Change the fuel filter and add some injection cleaner, clean up the throttle body and look for bad vacuum lines.
fuel filter was changed and injection cleaner added
How about the cap, rotor, plugs, and wires? There gets to be a good build-up inside the distributor cap on the terminals.
new plugs and wires
Ok then, Check for a weak spark, and check all the vacuum lines, along with the throttle body base gasket. Look for bad vacuum lines. If there is a water separator in the fuel line, get that replaced.
Looking for a Used F-150 in your area?
CarGurus has 208,534 nationwide F-150 listings starting at $895.
Search Ford F-150 Questions
Ford F-150 Experts