will not start

Asked by Mar 03, 2016 at 06:33 PM about the 1987 Ford F-150 STD Standard Cab LB

Question type: Maintenance & Repair

when the temp. outside is below 32 F the truck will not start. it cranks but will
not start.
when it is warmer it starts right up and runs like a top.

8 Answers

71,355

Does this have a carburetor or is it injected?

injected

71,355

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

71,355

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

71,355

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.

ok

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