My car has been acting up for a while now with the following symptoms:
When idling and with the A/C running it will run fine for a few seconds but then the car will sort of shake and the A/C will start blowing warm air and the whole car will act like it wants to turn off (and sometimes will).
I've replaced the spark plugs and spark plug wires (and was extra careful to make sure the spark plugs were gapped properly). So now I'm thinking it could be the fuel injectors.
My question is this: is fuel injector cleaner that you pour into the gas tank worth the money or should I go ahead and take the car to a mechanic? Also, with simple tools at home (no lift, no diagnostic machinery, and only a basic tool kit) is it possible for someone to change the fuel injectors themselves without causing a lot of trouble, or should it be left up to the professionals?