1997 saturn SL2 You have to hold gas petal all

Ford F150 1980 1995 Workshop Service Repair Manual Download

Get your car fix right now:))

my truck starts right up if I hold the petal to the floor but wont start if I don't hold petal to floor

have you replaced the fuel filter?

The cold start valve needs to be replaced. It is not letting the engine warm up properly.

You may have injector leak down problem.

I guess my first question would be - are you saying it is slipping in 3rd gear ? If you push the gas pedal to the floor it should downshift into a lower gear.
If it is slipping, or not upshifting into 3rd gear, I'm afraid chances are the transmission is toast.
You can take it to a couple of shops for estimates but they will probably want to pull the pan and take a look inside.

CHECK FOR OIL LEAK ONTO SPARK PLUGS REPAIR AS NECCESSARY

Fuse is the cheapest solution, I'd start there. Then perhaps light bulbs and/or relays.

Run it in to an autozone, or Pep boys for a free code scan which should help point you /us in right direction. Make sure you write it/them down & get back to us.

fuel, oxygen, and spark. Check all of these. Is it getting air. Is your filter clean. Are you getting spark. if not check your plugs wires and coil. finaly check your fuel. Are you getting enough fuel. Replace the filter, make sure you are getting enough psi's before the injectors. also make sure the fuel pump is working.

You will probably need to put your car on a computer scanner.

Let me know what you find.