I have a 2006 Buick Rainier. When driving at lower speed and accelerating or turning the rear end seems to lock up and there is a grinding noise and jerking sensation. What can this be? We put it on

SOURCE: 1996 Buick Regal, 96k miles - Recent purchase - doesn't seem right.

Wow thats quite a list you have there,Sounds like brake pads need replacing for a start as that may be your grinding noise and that may be the reason the abs light comes on.You may want to put a bottle of injector cleaner in the fuel tank.the plugs and ignition also need to be checked for servicability.The clunk on rough roads sounds like shock absorber or suspension bushes that have worn out.The exhaust smell could be that the its running too rich(higher fuel consumption)due to dirty injectors.The steering wheel noise could be the cover rubbing on the back of the steering wheel.Also make sure the air cleaner is clean as that also could cause higher fuel consumption.

SOURCE: 1989 buick park avenue tranny problems

does it do it in all forward gears or just overdrive?

SOURCE: my car is jerking while accelerating and reaching certain RPM

I would look for a fault in the ignition system such as a cracked spark plug. Might need a scope check to put your finger on the problem

SOURCE: my car is jerking while accelerating and reaching certain RPM

clean mass air flow sensor check for mil light

SOURCE: 1994 Buick Skylark. Lot of hesitation and jerking, power locks

HI MY NAME IS JUAN:
I HAVE A 93 BUICK SKYLARK CUSTOM
AND I HAD THE SAME HESITATION.
I CHAGED GAS FILTER, AIR FILTER, AND USE SEA FOME IN MY GAS TANK AND USE IT ALSO TO CLEAN THE INTAKE SYSTOM, AND IT HELPED ALOT. TWO MONTHS DOWN THE LINE HADE THE SAME HESITATION AND IT WAS ONE OF THE INISION COIAL PACK WAS NOT GIVING THE ELETRICAL SPARK TO THE PLUG. I CHECK IT BY PULLING THE CABLE OFF THE SPARK PLUG WITH THE CAR RUNNING AND FOUND THE ONE THAT WAS NOT GIVING SPARK. I REPLACED THE PACK FOR THAT CILINDERS PLUG AND THE PROBLEM WAS GONE.
HOPE THIS CAN HELP YOU.