Heater isn't working...already replaced fuse..but that wasn't the problem.

Really it isn’t hard! If I wasn’t colorblind, I would list them for you. If you are still stuck. Check out a friend or neighbors car. It doesn’t have to be the same model or even mfg. There is virtually no difference in how they use them.
I.E. radio, cig lighter fuses are always the same amps.
Good luck
Jason

A fuse won't fix anything if has blown

Check all the fuses

I would think the fuel pump has worn out & failed,
or you have rust & corrosion on the wiring,possibly
on top of the fuel tank & hard to get to

when a fuse keeps blowing it can only be one of two causes. either the consumer is loading the circuit too much due to a bearing problem or rusty component, or there could be a short circuit to ground. disconnect the blower motor plug connector and turn your a/c on like normal. if it blows the fuse again, replace the blower fan motor. if not, start checking the wiring for any exposed copper that might touch the ground-negative.also inspect all the plug connectors for water damage and corrosion.

If its not blowing air then you may want to try a new blower motor if it is blowing air then you probably need a new thermostat

I had a similar problem I thought it wasn't the fuse because I had only checked one but there are two cigarette fuses. Also you can replace the whole cigarette lighter if it is getting power to it. If it isn't there might be a bad wire leading to it. Get a test light to see if it's getting power through the fuses hole.

Seems to me you have a short to ground what you can do is unplug the fuel pump connector then replace the fuse to see if it still blows if it does not then you need to replace the fuel pump and sender if it does blow then you will need to trce the wire back to the fuse panel to see where it is shorted ....

Why would you even think about a coolant flush?

You have a new radiator, so all that is left is the heater core
That isn't your problem

You lost all the coolant when you did the radiator & thermostat
So what is there to flush ?

No bottle of doctor do good will fix your issues

Diagnose the main cause

How do you know the water pump is good?
Was it in your hand and still had an impeller that wasn't eaten away?
Was it pumping coolant and the system built up pressure that you
actually tested

Have you tested for combustion gases in case the head gasket is gone?

REMOVE THE DIC CENTER SEE IF IT IS GETTING POWER.SHAKE WIRES SEE IF DIC CONTROL WILL LIGHT UP WITH IGNITION ON ENGINE OFF.IF POWER GOING TO DIC CENTER AND SHAKE WIRES YOU STILL DONT SEE THE OIL DISPLAY LIGHT UP.DIC CONTROL COULD BE FAULTY.

Start by looking in owners manual under (fuses) locate fuse block and look for blown fuses.There are also relay fuses under hood

Hi,i had similar problem,the fan wasn't working.When i turned heater on hot it released the heat from the engine & temperature went back down.Turned out my fan relay fuse had blown.$5 fixed the problem.Hope this helps.