2001 Saturn SC2 jerks after Tune -Up

I assume that this guy is not a shop. First of all, I would change the plug wires. It sounds like a secondary breakdown in the ignition system.
As far as the shifting, it does sound like the clutch is failing from your description but you need a shop to verify this.
I know you are trying to save money with having someone other than a shop do the repairs, but in the long run, a shop is the best answer.

Roy

Just to add to this one I agree with asemaster671 sounds like spark plug wires breaking down. Unless you have a crank shaft position sensor starting to fail pretty common on that car. But if you turn the ac on when its acting up does it get worse?If so I would change the wires first. Its easy to change them your self there is a 10mm nut with a bracket holding the wires down to the valve cover. Then a 8mm bolt holding the wires to the coil just make sure you get the wires routed correctly. If your looking at the engine from the front of the car going from left to right the cylinders on the engine are 1 2 3 4. Then the same with the coils looking at them from the front of the car the cylinder numbers go on the coils 4 1 2 3 make sure there routed correctly now. Also make sure he didnt put platnuim spark plugs in your car they carbon foul in those engines and cause all kinds of problems missfires non firing cylinders etc. Make sure you get a good set of spark plug wires like bosch ac delco nipon denso.

Ngk copper plugs and I told you bosch ac delco or nipon denso wires are good.

Do a compression test also.

The spark plugs screw into the head and the wires hook to the plugs so I have no idea what component there talking about. Also check the coolant temp sensor and the connector for being corroded. The coolant temp sensors fail all the time on those cars. Also check and see what the fuel pressure is?Has the fuel filter ever been changed on that car before?They get changed every 100,000 miles on that car and by that time they are very restricted. They also contain the fuel pressure regulator.

I would still have the fuel pressure tested.

Was the coolant temp sensor checked?Thats a high failure part and always over looked. Also how much compression did it have?Did the check cam timing?Does it idle smooth?Does it have plenty of power besides the back firing?

Alright keep me posted too bad you wernt closer I could have fixed it for you.

I wish I knew what they tested and found besides throwing a bunch of parts at the car. Those cars are really easy to fix and diagnose. Does florida have burea of automotive repair you can talk to about that shop that charged you a 1,000 to fix the car and didnt?Here in california we have one.

The two O2 sensors I dont them causing a miss they usually just dont do that. Also when the cats go bad and cause a drivabilty issue they get clogged up and jus cause a lack of power and start bogging down. What was wrong with your starter you never mentioned that problem that I remember.

The chances of both coils the module and wires all being bad at the same time is really slim.I have replaced a coil here and there and module here and there but two coils and a module never in my 16 plus years working for saturn have I ever seen that happen. Sounds like there fishing with dynomite to me. What about all the other parts they thru at the car?Maybe the cat got clogged from the missfires but we dont know that. Also I have replaced a lot of front o2 sensors on that car for a code P0133 never caused a drivabilty issue and few of the rear ones but never was causing a drivabilty issue ethier. Relisticly the should have only cost about 200-250 to replace it. Where does the starter come in were you having issues with it before you brought it in?Make sure there isnt platnuim spark plugs in your engine they carbon foul in that engine and cause missfires and cylinders to not run. Also you can just replace one coil you dont have to replace both.I have replaced one many times and the car never came back with any issues. The modules are expensive on that car plus two coils and wires thats going to really add up. When he told you he was only going to charge you for parts was that his cost on the parts?Or his cost plus being marked up?Was the rear cat replaced or the manifold cat?Thats well and good that he is only going to charge you for parts this time around but from what I know and have seen the parts sound excessive. Also how come they didnt catch the wires being bad the first time around?Thats the first thing I check is plugs and wires when I have a missfire.I even have tester wires to swap and see if the wire are bad. Also what about the over 1,000 you already spent for them to guess whats wrong with your car?The only thing you should have to pay for is what was actually wrong with your car that you brought it in for. Not them guessing at your expense.