I have a 1999 Ford F-150 with a new starter (found out it was not the problem from Ford dealership) and it starts up just fine, After running around making stops (turning off) it pulls a no crank no start! It has been to the dealership twice now but they cant find the problem. If I let it sit for an hour or more it fires right up! Any suggestions would be greatly appreciated

Asked by Dec 18, 2014 at 06:41 PM about the 1999 Ford F-150 Work 4WD Extended Cab SB

Question type: Maintenance & Repair

7 Answers

16,660

Sounds like it is a heat related electronic problem. Once the engine cools the affected component functions. Question. Does it happen all the time when driving? Are you sure there is no spark delivered to the plugs? An easy way is to drive the vehicle until hot. Turn off motor in your drive. If the failure is present test the coil. Then test the plug wires, using an HEI spark detector is an inexpensive way to check.

It randomly happens quite a bit. It does not happen when driving the truck though. The motor is fine and I don't believe it has anything to do with the "no spark to Plugs" because of the no crank no start. Battery is just fine.

If I let it sit for an hour or more it cranks right over and everything is fine.

16,660

Try starting the vehicle when the engine is come. As soon as it runs for maybe ten seconds turn it off and try to restart. If it starts then restarts, then restarts they I'd put my money on a heat related electronic problem. It does not seem mechanical. You're going to need a milti-meter and an engine management (electronic/electric) diagram and begin testing when the problem occurs. I cannot believe the dealership couldn't find it.

16,660

correction: when engine is cold.

16,660

Scott: You did not mention if you had a CEL. The vehicle can be throwing a code without a light. Did you have it red for a code?

16,660

Don't know if your vehicle is equipped this way but it is worth a check. I had a mid 70's factory hopped up Grand Torino. It began doing the same thing but eventually began to kill while driving and would not retart until it cooled down. The problem turned out to be the square ignition module mounted on the fender well near the battery. When it got hot it would just die. This part was very susceptible to heat. I replaced two which kept failing. I finally re-positioned the module from it's factory location to a place where air from the fan would blow directly across the module. It worked. Worth a look to see if your vehicle is so equipped.

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