Hi. How hot did it get?
How long did it overheat for?
How low was the coolant?
How was it running when you shut it off?
When you try to start it what does it do, does the starter engage?
Does it sound like it wants to run at all?
1.) It didn't get really hot, stopped the minivan and there was some steam. The temperature gauge was not to the max.
2.) It overheated for about 3-4 minutes and cooled off the radiator with a water as soon as it began steaming.
3.) I suspect the radiator cooling fans were not working because I did not notice the fans were on. The fans were not on when I opened the hood to check.
4.) It was running the same as it normally would, I shut it off and turned it back up again and it started running again, and I let the water run on the radiator for a bit. After about 4 hours I refilled the radiator with antifreeze. I went to turn the ignition key on to start it and now it doesn't do anything, no noise, no clicking noise, nothing. The engine is not turning at all there is no contact at all to turn the engine.
What is the battery voltage, test it with the meter. So everything inside is normal-cluster and radio and all?
The oil light will be on any time the key is on and the engine is not running, nothing to worry about.
You probably have a failed cooling fan relay that caused the whole problem. Its mounted to the frame rail under the air filter box, held on with 2 8mm screws.
When you turn the key on without trying to start your engine, does the engine light come on and go out, or come on, go out, then flash?
Ok. With your voltmeter, unplug the tps at the throttle body. Check for 5v on two of the wires with the key on. If you don't find any voltage, the engine controller is not awake. Just on a hunch, pull the engine controller connectors. Its the module next to the pdc. I wonder if you have have gotten water in there when you were spraying the radiator. If you did, I think I would let it dry overnight with it unplugged and see what happens in the morning. If you have an air compressor you can gently blow out the connector and the module and see what happens.
If its not that, we still have a really big range of possibilities here, but hopefully we'll get to the bottom of it.
So, i'll let it dry overnight and let you know what happened in the morning.
Ok so i've tried everything but still the car does nothing, even after replacing the radiator fan relay
If you've got voltage there we know the pcm is at least partially awake. From there go to the starter solenoid wire and check for power when you turn the key to start.
If you don't have voltage I'll have you check all the pcm powers and grounds to see if its getting everything it needs to wake up.
I checked the bolts on the starter solenoid and it doesn't have any power and everything is normal on the cluster. I recently found an article where the radiator fan stopped working and the radiator fan relay needs to be changed, which I already did, and the radiator has to be flushed and also the pcm has to be reprogrammed. I also found out there was a recall for these minivans from the year 1998 because of this problem because it had problems with the radiator fan. Could this be the problem? Might the pcm need to be reprogrammed?
Reprogramming the pcm won't help your no start.
Lets check the pcm powers and grounds next. In the black connector check for:
20-white/black-12v with key on
In the gray connector:
If you find all of this stuff to be ok, jump the starer solenoid while everything is plugged in with the key on, and see if it starts.
This is really starting to sound like a bad engine controller. You've got the powers and grounds to make it work, and you'vejumped the starter and cranked the engine, it should have started. This coupled with the fact that it won't crank, I'm really doubting the pcm.
One more question, I bought a manual for the minivan and re-did all the tests you've instructed me to do before, and I found that pin #20 on the black connector to the pcm does not have 12 volts of power and from what i've seen in the diagrams in the manual, it has p.t.c. fuse or breaker and I don't know where that one is. Can you please tell me where it is located, is it below the steering wheel or p.d.c and it looks like maybe this is the problem because there is no voltage to the fuel pump, to the check engine lamp, the engine starter cylinoid. Where is the p.t.c. located, and hopefully this will be it. Or is there anything else that interferes with getting voltage to pin #20.
Double check the grounds at the pcm. the pcm turns on the starter relay. It sounds like we are back in the same place we were at before-you have the right inputs to the pcm but it won't crank and won't start. We did even jump the starter and when it cranked the engine it still woulnd't start, pointing more blame to the pcm.
The starter relay should have power at pin 30, power at pin 86. It should have ground at pin 85 while you are cranking the engine. This is the circuit controlled by the pcm. The pcm grounds this wire to turn on the relay and turn the starter.