[NS4U]

Last week i got back from a 100+ mile drive with my Mustang... and when i got home, anti-freezing started bubbling out of my reserve tank like crazy (probably about half of the tank bubbled over).... I brought it to my mechanic he said my water pump was leaking... and an air pocket probably got into the line and messed with the pressure causing everything to bubble over

long story short... the pump is still under warranty... and the mechanic said it was ok to drive for a few days until we got it into the dealership... during this time I would only take it on short trips.. but when I would pop the hood to check on things, the engine bay would be EXTREMELY hot... even to the point the floorboard was warm... although coolant wasn't bubbling over anymore and my thermostat said the temp was normal..

so I had the pump replaced today... hoping everything was ok... i popped the hood when i got home... and sure enough coolant started leaking out of the reserve tank again (but not as severe as before)... and now the engine was making this weird bubbling noise (not from the anti-freeze), and the engine bay was very hot again... this was the result of a 10 mile drive from the dealership to my house

So to troubleshoot some stuff, I turned on the car... and noticed the fan still wasn't kicking on... rev'd the engine to 3k for about 30 seconds and the fan still wouldn't kick on... HOWEVER then i turned on the air inside the car (it was off during all of this)... and the fan kicked on 5 to 10 seconds later

I tested this 3 or 4 more times and found the fan would only kick on if the vent or a/c in the car was turned on...

Does this make sense to anyone? I never really paid attention to when the fan would kick on or off... or even how how hot it was under the hood after a long drive... but something just doesn't seem right about this

Unfortunately I'm not really a gear head... so I'm hoping you guys could give me some insight on if this normal or if something is wrong

Thanks... sorry for the long post

[wnewport]

Maybe the fan controller/thermostat? Is the fan on after a drive when you stop with a/c off?

[psychobenz]

sounds like a relay problem to me...if its under warranty,take it to the dealer. It should be a quick fix.