go back and check each plug gap, put the gap at .44. check to see if all plug are screwed in all the way (especially back plugs), check the plug wire is completely down on the plug (especially on the back plugs). shaking could be bad wire, misfire, leaking vaccumm lines. if you don't have a code scranner, go to auto zone and get code read out. they do it free.
how do you check transmission leval on a 03 Chevy impala
check with your Chevy dealer on that.
Check with your local Chevy dealer on that.
Check the fan control
Check
Yes. Check your local smog laws, though.
check the engine block casting number
Check the lug nuts
check the fueses check fueses
The online website 'Car Parts Discount' is one place where one can purchase authentic Chevy Impala parts. Another site to check out would be GM Parts Direct. One could also search Impala parts.
Check engine is an error. You have to go at a garage to see what is the error code, then correct the problem.
You need to connect a OBD-II Scanner to find out.....