94 ex overheating issues

[94explorerEB]

Hey guys, ok I just got the ex and since I got it its tried to overheat alot its never gotten HOT but to the AL in NORMAL. Mostly at speeds 45 and lower. It had a leaking radiator so I got a new radiator, and replaced the thermostat with a new one. Well it was still trying to overheat and I started to smell the sweet smell of anitfreeze. So this past weekend I did the gaskets from the heads up. Its still trying to over heat.... Then I got a new water pump monday got it on and at first that seemed to do the trick. But the same problem came back. Oh and when I replaced the radiator I flushed the system as well there was rusty looking water in it. I'm down to the clutch fan, hoses, and heater core being the only things I havn't replaced. Any ideal, I'm leaning towards clutch fan maybe?

 

[surf]

Are you still leaking fluid? Did you replace the radiator cap? Is the Gaige steady or does it fluctuate?

 

[nitro71]

Does the fan spin up? You might try a aftermarket temp gauge. Might be that the stock one is off. Or pick up a new temp sensor. Could swap in a junkyard sensor and see what happes.

 

[94explorerEB]

As far as I know, no I'm not leaking anymore fluid. I have not replaced the cap, and the gauge does fluctuate from the RM in NORMAL to the AL in normal. My last 2 explorers didn't do this niether does my mazda B4000 their temp gauges didn't move it just stayed in the middle of the RM of NORMAL.

 

[surf]

A had a similar problem except the gauge went from the N to the L on the gauge about once a minute no matter whether I was idling or on the highway. I replaced the temp sending unit and burped the system. Now it fluctuates only slightly off dead center.

 

[94explorerEB]

I'm going to burp the system tomorrow to see if that helps any.

 

[94explorerEB]

Ok I burped to system and that didn't work either. So I got a new blade and fan clutch we'll see what happens. It seems to start getting hot when coming to a stop or slowing down

 

[maroon93limited]

What thermostat do you have in there? When I got mine it had a 200 in there and hovered right around the same temp as yours, but just recently I replaced it with a 170 as a precaution for our vacation to the mountains in 2 weeks. It now stays right around the high side of NO on the gauge.

 

[94explorerEB]

Ok the new fan clutch didn't do the trick either :thumbdwn:. I believe its a 195 thermostat maybe and its one from ford not the autozone cheapo. And today while helping a buddy, I let the truck just idle while we were working(ruffly 20min). So when I got back in it was over to the L in NORMAL. I don't know what else to do?

 

[surf]

You might want to replace the temp sending unit. My gauge used to fluctuate from N to L constantly. Replacing the temp sender resolved the issue.

 

[94explorerEB]

Ok I'll pick one up at ford this friday. I did notice when doing the gaskets that the wire to the sending unit was frayed(one wire sensor right?). I rubbed some black rvt sealer over the frayed part as a temperary fix I gotta get to one the JY and pick up a replacment. I'm also gonna get some more flush and flush it again.

 

[surf]

The one wire sensor goes to the gauge.