My Girl friend has a 96 chevy s10 blazer and it runs really rough!!!!!We took it to a Midas and they said it was fine but they took us down for our brakes,oil change and a flush!!! WTF!!!!! i believe it is needing a new tune up!!!!! Wot do u guyz think? can i have some feed back????

 

I would definitely start with plugs/wires/cap/rotor if you do not know when it was done last. The wires can be checked at night with a spray bottle of water. If you see sparks, then the wires are bad. The cap and rotor must be pulled to check if they are in need of replacement. If htere is carbon built up on the terminals inside the cap, then replace it and the rotor. If you replace either the wires or the cap/rotor, replace the plugs. AC Delco double platinums seem to be the favorite.