my car jerks when i accelerate

Is the check engine light on or codes in the computer ?

ck all your motor mounts

no check engine light is not on but can you tell me something about codes , how to check them and what exactly is motor mounts and where it is?

Mounts are rubber blocks used to isolate the engine and transmission from the vibrations . To check engine codes your best bet is to have a repair shop tap into the computer or some shops do it for free.

most parts stores will do it for free

thank you for reply. yes i have changed mounts both of engine and gear box one.i live in ksa so the codes facility is not available for me, i just want to tell you that even my rpm needle goes up and down i think this is the main problem why my car jerks. i hope you can help me.

jack it up and check for loose wheels.push and pull the rim at 9 and 3 oclock.then at 12 and 6.watch the steering componates for being loose.turn the drive wheels back and forth also.listening for a noise.

The jumping spedo may be related to the jerking. You will need a scanner to diagnose this. Might be best to bring it to a trusted repair shop