could be the egr valve, a bad o2 sensor, even a clogged fuel filter, bad injector, start with the chepest things first. Dont forget to check the air filter it may be clogged!
what causes hesitation on ford f150 truck
We do not know at this time. Nothing is known for certain about any of its possible causes.
Bucking during acceleration can be caused by a low fuel level. When the car is running on fumes, it is not getting a constant supply of gas which will cause it to stop and go.
I have a 2001 Durango and it started , what I guess you could call bucking . I put a new Throttle Position Sensor on it and now it runs just fine ... no more "bucking".
Camshaft sensor needs to be replaced... for the 2001 Honda Civic, there has been a TSB released saying certain vehicles with certain VINs need to have their cylinder head replaced... Google it.
dropping of the breasts is a natural process that happens to most all women at certain stage of their life. it happens when the nipples fall below the crease of the breast. ezinearticles.com/?What-Causes-Breasts-To-Sag-or-Droop?&id=769777
if this happens at a certain speed it's probably the alignment of the tires.
Sounds like it is time for a good tune up including spark plug wires.
2-ethylhexane. This is because the hydrogenation causes the double bonds to be replaced with an H-H to fill the carbons valence vacancies.
what causes fractionation to happen i certain blends of refrigerants
One cause would be a cold spark which means you have either a loose coil wire or a bad coil.
I assume you mean the frequency at which the head moves back and forth. If this happens only at a certain frequency, then it sounds as if that is caused by resonance - which happens when the excitation (in this case, the head moving back and forth) has a similar frequency to the object's (the printer's) natural frequency.