I've changed all coils and plunges and the damn car stalls when pulling a hill. Also it's making a terrible sound when inclining a hill. The car is nice as hell, but boy looks can be deceiving .Please help Ms. Jaguar

Check fuses & relays then trace wireing to make sure everything is plunged in and nothing is grounding out like a bear wire against another or touching metal

change your fuel pump filter and put some injector cleaner through a half tank of gas and drive

Have you checked your sparkplugs

Check the condition and/or operation of the following:

1) Spark plugs, coils and leads.
2) Air filter
3) Fuel filter.

Please report back if no findings.

What is the make, the model and the year and engine type/size.

Sounds like low transmission fluid. Check this under the hood, with what is usually a yellow cap.

Generally speaking when a car stalls out going uphill, a few things come to a mechanical mind.

1. Going uphill produces a strain on the engine and drive components, if you have the old points and coil type vehicle one could suspect a faulty ignition coil as the culprit.

2. A vehicle on an incline may be low on fuel and thus stalls on a hill because it is starving for fuel on this incline.

3. A faulty float inside the float bowl of your carburator may be the problem.



Read more: http://wiki.answers.com/Q/What_does_it_mean_when_your_car_cuts_out_going_up_hill#ixzz1FHGcZ0xb

P0304 code is a cylinder 4 misfire. If the plugs or wires are bad it will cause a decrease in power. I suggest changing the plugs and wires and see if that helps.

Sounds like a bad plug wire or coil.

Sounds like it could be some water in your Carb, i would recommend cleaning it out, Also it could a blocked air filter