The fuel pump will cause it. Check the fuel pressure. It should be between 55-70.
first it will cause the car to idle and run rough.It also can cause the check engine to stay on.
The primary cause for jerking on a 99 Mercury Cougar is the engine not getting enough fuel. This can be a sign of a clogged fuel filter, bad fuel pump, or clogged fuel injectors.
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.
Jerking in your sleep, may be Restless Leg Syndrome. This is not uncommon with Fibromyalgia, but it may also be a side effect of some of the medications commonly prescribed for Fibromyalgia. If you are experiences jerking in your sleep, you should report this to your doctor to determine the cause.
Have the system checked for codes, that will lead you to the cause.
torque converter can cause this. you will have bucking and stalling. another thing it can be ( I know this to be true as it happened to me) is the cat converter.
Check your motor mounts and what your at it check trans mounts.
It definitely is a possible cause of it jerking, if it's not an engine mount, service the transmission
clogged fuel filter, or bad fuel pump
They can cause both emotional and physical pain (such as head jerking or jaw snapping)
If the 1999 Suburban noise is a sort of loud banging noise, the problem could be that the engine have jumped time. Jumping time would cause the noise and jerking in the engine.
Masturbation should not cause any harm to the penis.