2000 Grand Prix rides like riding a wooden roller coaster when pressing gas pedal only.
2000 Grand Prix 6 cyl. rides like being on a wooden roller coaster but only
when you press the gas pedal. Drives fine when not giving it gas. Thought it
was tires/alignment but had this done and doesn't fix problem. Please help!
Check your motor mounts
It may be the transmission or, if the service engine soon light is flashing the engine may be misfiring under load. If the engine is misfiring under load you may just need a tune up (new spark plugs and spark plug wires). HTH. -Jim
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