10
questions

When driving car tends to feel like it is pulling to the right and its vibrating hard to keep in the road

Is it even worth fixing or should I junk her

AFTER DRIVING MAYBE 10 MILES MY VAN SEEMS TO RUN LIKE CRAP I REPLACED THE THROTTLE SENSOR THE IDLE MOTOR THE COOLANT TEMP SENSORS BOTH TRANSMISSION INPUT OUTPUT SENSORS

This happened once before, but magically "fixed itself" and I never had it looked at. Car's been running fine but my instrument lights have been acting up - various ones will go off and on at times, and other times all of the panel lights and radio lights will go out but will come back if restarted.
This time when I turned the ignition all the lights were on, engine turned over fine, but after a few seconds the instrument panel lights went out followed by the engine shutting off. Same results after trying a few times, then let it sit overnight and still the same. Engine definitely turns over and runs for a couple seconds but then stops.
My husband has checked all fuses which seem fine. He's mentioned the possibility of something like a relay switch? If that's something he can test and replace himself it would certainly save us a few dollars.
Appreciate any suggestions anyone has!

Had a fuel line leak, changed the fuel line from the filter to the hard line & now the engine wont start. The van was working fine before hand & has plenty of gas.

The coolant tubes are rusted and leak and I can not find replacment tubes.

I recently started to have problems mostly going uphill, the transmission acts as if it is slipping or disengaging. I had it scanned and was told everything checks out. I was told my battery was weak and this could cause this and to replace which I did, my egr solenlid was stuck open and was told this could be the problem and to replace which I did. Neither fixed the problem. At times the van will run fine for a week and act up again. I need some help. All of this was through certified shops not backyard mechanics

The heat is weak, and only works on low or medium, weakly. I've replaced the thermostat twice, so I dont know if it might be the heater core or what?