I had this problem until I had the timing corrected. It is a very cheap and easy thing to do but best to get a proper service centre to do it. If the timing is slightly out the car will backfire and be sluggish when going up hills and acelerating.
Timing belt. misfiring engine
Bad plugs/coil/wiring
Here are some possible causes: 1. Warped flywheel. 2. Engine out of time. 3. Engine misfiring.
why would it no be
Misfiring on a petrol injection engine is caused due to incorrect ignition timing. As the engine rotates, the timing determines when each piston fires or ignites.
One of the possible causes of a Pontiac Bonneville to jerk during acceleration is that the car needs a tune up. The engine misfiring can lead it to jerk as you accelerate.
When the engine is cold or when it is misfiring.
Water in engine. Head gasket most likely. no aceleration because no compression.
Check your engine timing, it may be too slow.
Engine cylinders # 1 and # 4 are misfiring
The number 5 engine cylinder is misfiring
A bad ignition coil normally won't allow your engine to start given there is no spark. If it is starting to go bad, it causes misfiring which can be noticed as a stutter, or random shake of the engine. Check the ground of the coil before replacing it.