Ford E-150 Econoline, l991 van: After engine runs and gets hot, it will not restart. It turns over but will not fire. thank you
Country: United StatesMake: FordModel: 150 econline vanYear: 1991
Hello, I will try to help. usually this problem can be associated with 1 of 2 things, Either the vehicle has lost fuel delivery, or has lost spark. One thing to check, is fire to the spark plugs with a spark tester at the time it won't start, if you don't have any spark to the spark plugs when it won't start, Then I would try another ignition module and stator. The ignition module is bolted to the side of the distributor with 2 5.5 mm bolts, you have to have a 5.5 mm socket or you will not be able to get them out. (FYI). The stator is inside the distributor and the distributor shaft has to be taken out and the gear knocked off the distributor to renew the stator, it's not a hard job, but alot of people will just opt for a new distributor rather than rebuilding the old one. If fire is present at the plugs, You may have a failed fuel pump, or fuel pump relay, or possibly the PCM itself. (Powertrain Control Module). as the PCM grounds the fuel injectors, I would also install a fuel pressure gauge on the fuel rail and see if I had fuel pressure when it wouldn't start. If no fuel pressure, I would trace the fuel supply system. If no spark to the plugs, I would renew the stator and module. Make sure the coil isn't broken and the spark plug wires and coil wire are intact.
ASE certified. Auto Transmission rebuilder for Ford Motor Co. from 91 to 2000
I negelected to mention that once the engine cools, it will restartt. Thank you for your answer so far.
If it's just on a hot engine, I would say it may be fuel related other than ignition, but until you determine whether it's spark or fuel related, It's really hard to say, One thing you can do, is get a can of carb cleaner, when it won't start, pull the fresh air hose off at the air cleaner, and spray a good bit of carb cleaner in the fresh air pipe, if the engine briefly fires up and runs then, you'll know it's got spark, but no fuel, (because your introducing a fuel source). Then it's most likely fuel pump relay, or fuel pump itself.