Even at low speed 20-40km/hr experence left and right shaking when driving

check tires --have rebalanced ,make sure proper air pressure ,also check brakes --then check front suspension tie rods /balljoints control arms c/v axles

Check all transaxle & motor mounts, as
well as drive axle cv joints
Check the entire front suspension for
loose & worn parts

CHECK FOR A BROKEN BELT IN THE TIRE

belt separation on one of your tires maybe

When it comes and goes at a certain speede, it has been my experence to chech an inner cv joint. See if you can safely duplicate this on a hoist.

Left to right wandering that starts after 40+ minutes means that the effect happens once something gets hot.

I'd suspect first tires or suspension (tie rods or ball joints). Could be a jamming inner CV joint, but this generally results in steering wheel shake too.

Might also be an engine misfire. Check wires, plugs and injectors.

Could also be fuel starvation on a low gas tank. Check the evaporative system.

Ok,

same car with the AC problem. Timing is not going to make this all happen.

• If its jaulting as an automatic, through the gears, then probably check and change the fluid and the filter in the transmission. Usual jolting is from lack of fluid pressure, caused by lack of or blocked filter.

• Start up could be anything from a weak battery to lack of fuel/choke. Try a new fuel filter, air filter element, check your oil and change the spark plugs.

(Symptoms of bad ignition timing are misfire and run on also extreme lack of power and rough idle. The car will also shudder and keep running a few seconds after the key is switched off.)

• The steering shaking from left to right at low speed could be a few things. Is it only happening at low speed? Sometimes its hard to tell at high speed as it is happening so fast the frequency is almost unable to be felt. However when you brake it should be pretty strong if its a mechanical fault, ie disc warped or bent wheel.

#Check your power steering fluid and hoses for leaks

If it's shaking left and right and shakes faster the faster you go i wood say it's slipped belts in the front tires.Hope this helps.

CHECK THE BALANCE ON TIRES AND CHECK FOR A BROKEN BELT IN A TIRE. I WOULD ROTATE TIRES TO SEE IF THE SHAKING CHANGES ARE EVEN GOES AWAY

you need an alignment done