WHEN ENTERING HIGH WAY AND STEP ON GAS CAR STRUGGLES AND STAYS AT A LOW SPEED AND WILL NO SPEED UP UNTIL AFTER AWHILE IT STARTS TO SHIFT GEARS. WHEN GOING AT A HIGH SPEED WHEELS START TO SHAKE CAR CAN'T GO FASTER THAN 55MPH. WHEN MAKING A COMPLETE STOP AND THE. STEP ON GAS IT STRUGGLES TO SHIFT GEARS, WHEN TURNING CAR OFF AND THEN TURNING IT ON AFTER 10 MINUTES CAR WILL NOT TURN ON EVEN WITH A NEW BATTERY. YOU HAVE TO KEEP TRYING TO IDLE UNTIL CAR TURNS ON.