Last week I posted that my alternator fried which caused several switches and relays to also fry. I got the car back last Wednesday night. On Sunday 1) my tach quit working and 2) the heater began blowing extremely hot air even set at one. Tonight after work the car wouldn't start and I had to get a jump. I know the cost and responsibility of getting a new car but this is getting to be too much.

 

There is something else going on with the electrical system. Troubleshooting the wiring is a difficult job, and is well beyond most professional mechanics' ability. I would be concerned about the possibility of damaged wiring either in the engine bay, or under the dash.

 

do you have an auto or manual climate control? (auto has digital display)