97 DISCO over heating saga
#11
Your set of parts may work better than my set. But a scanner will let you know for sure. Try parking on steep incline, and running engine when COLD with coolant jug cap off. Let it warm up and run at 1500 rpm or so, some say this brings all the bubbles to the high spot where they can escape. And I would guess that if you do have a trapped pocket of air, which might be pushed around by the coolant, that when it finds the way to the sensors - things would rise quickly.
#12
#14
There whould be enough air moving to blow your hair around like you are standing next to a, are you ready...fan.
It is possible to put the fan on backwards when replacing the fan clutch.
If this happens you will not know it at speed, only at idle.
The DI cooling system is a very efficient and well designed system so it takes alot to mess it up.
#15
A wimpy plastic bag held next to the grille should be sucked toward the grill, not blown away from the vehicle. Do test with engine running. AC off. Do test again with engine off, AC turned on (electric fans running). In both cases air should be pulled into grille, not blown away from it.
Cupped side of fan blades should be toward engine block. I would suppose if fan were backwards, there might be a slow speed where wrong fan direction plus moving air flow equals zero.
Cupped side of fan blades should be toward engine block. I would suppose if fan were backwards, there might be a slow speed where wrong fan direction plus moving air flow equals zero.
Last edited by Savannah Buzz; 07-29-2011 at 08:19 PM.
#17
I would def check for gases in the coolant. I had an intermittent over heat problem that was hard to track down. I replaced my reservoir cap, my water pump, my t-stat, my hoses, my e-fans, my fan clutch, and pulled my rad and had it tested and acid washed. The only thing left is a HG which I plan on doing sometime in the near future. Testing for gases early on would have saved me a ton. Of course alot of that needed to be replaced at somepoint anyway but testing it is cheap. Do that before you go any farther.