first off im having cooling problems.. the car is overheating and now there is coolant leaking into the pass side by the heater core????

im positive the overheating is a fan related issue... they got wet from when i relocated them and the light blue one was drenched.. i replaced that with my friends KNOWN working one but it still doesnt spin as fast.... when the fans turn on they dont spin at full speed... and when i turn the a/c on they spin faster but i still will over heat... any recomendations? this is kinda my make it or break it to go to deals day... please help ASAP.

 

The only thing that really deals with the fans is the fan relays on the passenger shock tower. If they're funky inside or worn out you'll have all sorts of fan problems.

If you have the fan recall harness that plugs in between the fan relays and the front harness, ditch that as well.

Coolant leak - are you saying it's leaking inside the car? It's either the heater core itself if it's inside or the hoses to the heater core. If you use an aftermarket worm-drive clamp on the heater hoses, it can leak around the clamp and drip inside the firewall. I prefer to use Mazda's stock clamps, they always hold the proper amount of tension on the hose for a leak-free seal.

Keep at it, I wanna see you and your car next weekend!

Dale

 

yeah, you better make it to deals gap with your car. just buy 3-4 gallons of extra coolant and truck on down lol.

 

My heater core was bad and leaked into the pass. side floorboard area. Given the fact that replacement cores are not available and the effort required to R&R the existing core I just disconnected the heater hoses and bypassed it. I don't really need a heater in Texas...

If you've lost enough coolant due to a heater core leak (or any other leak) you will have overheating problems even if your fans are still good.

 

I think you need to fix the coolant leak first. If coolant can leak out, air can get in. You may have an air bubble in the system. The easiest way would be to just bypass it for now if the heater core is bad.

Next, I would unplug the fans and run wires directly from the battery and see if you have full fan speed. If you do and the car doesnt overheat you have a problem with your wireing or relays. What temp do your fans turn on initaly? Do you have a PFC?

I am not shure but i think the stock computer will not turn the fans on high unless the thermoswitch works and the ac is on. Maybe you have a faulty thermoswitch, Again I am not shure about that though


John