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The engine will run inefficiently.
that would be a compression problem.
An internal combustion engine needs 3 things to run; if it has all three it HAS to run. 1. compression. If the cylinders are building compression properly, and the valves are properly timed, that requirement is satisfied. 2. ignition. If the spark is adequate and timed properly, that requirement is satisfied. 3. fuel. If the carburetor or injectors (whichever your engine has) is delivering fuel properly, that requirement is satisfied. If the engine isn't running you need to find out which requirement isn't being satisfied. The easiest to test would be fuel. Try using starting fluid to see if the engine will briefly run. If it does, you probably have a problem with fuel delivery. If THAT'S not the problem, check the compression. The compression should be even across all cylinders and somewhere around 90-is psi, but you should check with Ford to find out the expected pressure... I'm only guessing. If the compression is up, and the starting fluid didn't get the engine running briefly, the ignition may not be timed properly, check THAT with a timing light. If it's a problem with the ignition, the computer may have "thrown a code", and you can probably find out a lot of what's wrong by just running a computer diagnostic.
Compression, the rings sealing properly? get a compression tester and follow the instructions.
I have that. My problem is compression of the Lumbar vertebrae (L-4 and L-5 )compressing the nerves. It is called Spinal Stenosis. Google it and see if it fits
Could be a fuel delivery problem such as a dirty fuel filter.
After extensive diagnosis of fuel and ignition system, I solved my 1996 Tacoma hot start problem by having the valve clearances set properly. Tight valves cause compression loss and hard starting when the engine is hot.
Could be a fuel delivery problem such as a dirty fuel filter.
Run a compression check and make sure the compression is even across all cylinders. If that's ok, probably a simple tune-up will solve your problem. Most of the time, this is ignition timing.
The three types of stress in plates are tensile stress (stretching), compressive stress (compressing), and shear stress (sliding or tearing). These stresses can cause deformation or failure in the material if they exceed its strength.
Check The ignition wires and coil. Make sure that you don't have a fouled plug. If these are ok then there could be an internal engine problem, check for proper compression.
1st you have to determine the cause of the misfire: could be as simple as a gad spark plug or wire or bad ignition coil or as involved as a bad piston or valve. do a compression test to see if the misfire is caused by an internal engine componet. IF compression is within limits then problem is probably an electrical problem.