Overheating problem.

[user removed]

Lets just hope that is all, I'd say 90% chance or higher. Good call by Pop, saved a wasted tear down. Give him a hug for me.

regards
mech

[XYZ]

I'll stop there, but you get the picture. What does this mean...? I'm so confused, I checked every hose and everything and didn't see any sign of leaking nor did I hear anything hissing.

I would also like to add this, my radiator fans kick on at 207 then kick off the second I drop to 204. Shouldn't they be staying on a little longer then that?

No wonder you are confused. You are experiencing information overload. Everyone here is trying to help you and all the conflicting advice is now OVERWHELMING.

The way out of the mess is to start thinking for yourself and sorting it all out. Think about the boiling point of water. At what temp does water boil?

Do you think the fans are starting up at an appropriate temp?

[Baltothewolf]

Originally Posted by Old Mechanic

Lets just hope that is all, I'd say 90% chance or higher. Good call by Pop, saved a wasted tear down. Give him a hug for me.

regards
mech

He is at work 100 miles away . I'm gonna take him out to Dennys when I get paid on Friday haha.

[user removed]

Dennys my arse, Red Lobster.

regards
mech

[XYZ]

Originally Posted by Baltothewolf

Yea I never considered it, it wasn't until my dad brought it up that I checked it.

IMHO, most electrical connectors on modern cars can only be attached in one way. I doubt that reverse polarity would affect a fan. Frankly, it probably doesn't matter in which direction the fan blows, as long as it blows.

"Thar she blows!!"

But if she not bloweth at the right time ... lack of blowing = no cooling.

Seriously, your problem sounds like it's not a fan problem. I suggest that you go back to the basic advice that Old Mech provided, and do the self-diagnosis one step at at a time. Go back to Square One.

Keep a written log. Don't take any shortcuts or ignore anything. There are only so many possibilities. That's how all problems are solved.

[user removed]

I respectfully completely disagree xyz. My advice was based on the air flow being right and it's not. Somehow the polarity was reversed. The symptoms described are exactly what would happen with reversed air flow. Even if I had to snip the wires, reverse them and use butt connectors, the airflow must be from front to rear. Of that I am 100% sure and balto just saved himself a wasted teardown.

If there are only two wires to each fan (ass-uming more than one fan), switch them, even if only temporarily. If more than two (per fan) then it gets more complicated but you have to reverse polarity.

regards
mech

[ksa8907]

Originally Posted by XYZ

IMHO, most electrical connectors on modern cars can only be attached in one way. I doubt that reverse polarity would affect a fan. Frankly, it probably doesn't matter in which direction the fan blows, as long as it blows.

"Thar she blows!!"

But if she not bloweth at the right time ... lack of blowing = no cooling.

Seriously, your problem sounds like it's not a fan problem. I suggest that you go back to the basic advice that Old Mech provided, and do the self-diagnosis one step at at a time. Go back to Square One.

Keep a written log. Don't take any shortcuts or ignore anything. There are only so many possibilities. That's how all problems are solved.

This is a dc motor so polarity does matter. And so does direction of air flow. At speed the fan running backwards will pretty well stop air flow through the radiator.

[user removed]

Anyone want to bet that correcting the fan flow corrects the overheating problem? Give me your odds.

Hopefully the overpressured pressure tester and the overheating did not cause any more problems.

regards
mech

[user removed]

LOL it's needless to say, "needless to say".

regards
mech

[ksa8907]

Originally Posted by Old Mechanic

Anyone want to bet that correcting the fan flow corrects the overheating problem? Give me your odds.

Hopefully the overpressured pressure tester and the overheating did not cause any more problems.

regards
mech

From following this thread for so long, im going to say this case is closed. Im highly confident this is the issue. Probably why the previous owner got rid of it, he couldn't figure out why it was overheating.


I don't think the overheating has caused any problems. My intrepid, all aluminum 3.2 v6, had run out of coolant once from a leaking radiator, and a few years later ran at 220-230 for about a month and finally as high as 245 for maybe 2 days before I fixed it. Ran fine for another 4 years later until I sold it a few months ago.