so far i changed the fan,it was shot. never kicked on and there was little to no resistance when turning it. the water pump was leaking so changed that too. the truck is still running hot.whats the next step i should do ? thermostat ?

thanks guys.

 

check the temp of the radiator top and bottom. There should be a significant temp difference once the thermostat opens (hotter on top). What temp are you running...can you tell when the stat opens? Are you boiling over....ie what are the symptoms.

A lazer thermometer is really helpful- you need a guage with numbers on it as well. If the radiator isn't cooling the water it may need cleaned out. This is probably more common in warmer climates as antifreeze that protects from electrolysis is not used as religiously. I had to have the radiator in my '83 rotted out at a shop and it helped. I take it you have the shroud...if not...get it asap. Lean fuel/air ratio could make ti run hot as well. Any performance upgrades? I only use cast iron water pumps.

Engine should run between 195-210 or so. The best system is one that cools well beyond the typical operational load and need. That way when you are running in 110*, pulling a trailer with the a/c on it will still cool the engine. In the ideal system the temp is controlled only by the thermostat- it keeps the engine at 195-200 degrees and restricts flow/opens to keep it there.

You need to be more specific with symptoms, temps etc.

 

i'm just reaching here? but is'nt there a temp sensor that tell's the fan when to kick on? if so have ya checked it? or do you have a clutch fan? have ya flushed your system?? changed the t-stat? changed the fluid? in time's of need i have ran the heater to cool it down some?? hope any of this is helpfull? good luck

 

Did it overheat on you while driving? Look under the oil fill cap for a white gummy substance,if so thats water in the oil. Also look at the water/antifreeze and see if it has black stuff in it or the water looks black.Sometimes it dont take much to blow a head gaskett depending on age and condition of motor.

 

thanks guys for the help. sorry i wasn't a bit more descriptive in my post.

about 3 weeks ago i was wheeling and sunk it in a pond.the engine sucked in water through the air intake.since then it hasn't been running rite.the dummy light came on and showed that bank 1 & 2 were running lean. i changed out the mass air sensor and cleaned the air intake and new filter.the mass air might of been damaged by the water.im not 100% sure yet if that was that problem or not.

i also cleaned the radiator of mud build up (maybe its still dirty) replaced the clutch for the the fan as the old one was shot and i thought that was the problem.now the new clutch is only kicking on when i first start the truck, not when it gets hot.

its not boiling over but it will go past the "L" in "normal" if i let it. it used to run at the "M".

the water pump was just replaced last weak as i noticed it was leaking.

the only thing that i haven't changed is the thermostat and the actual radiator.

thanks again for the help.

 

I would best guess the lean condition and electronics being exposed.

Sometimes electronics survive water wll if they dry out properly and corrosion doesn't set in. My cell phone was submurged fora half hour or so....I took the battery out and let it dry for a few days...only the battery was ruined. If you run it wet then it is more likely to be permanently damages i think.

I'd have it diagnosed by someone who has the updated equiptment to do so. A bronco with that engine is a keeper IMO. If it had the 302 i'd be more likely to do away with it.

If you mud with a computerized rig your gonna eventually pay...not designed for that.

 

from what your describing, its not much! try putting a mechanical gauge on it or test the temp with a laser thermometer, might be your gauge is screwed?

 

man im a dumb ars...i meant rich condition.....sorry.

anyway im in the middle of taring out the ac condenser.ac is gone so i see no reason it should be there and maybe i can clean the radiator a bit better.

 

i took out he condenser, the radiator has mud in it still so i will go clean that out.then take some temps with my digital temp gun.

 

when flushing..take your time and do it over and over...use the lower hose to fast drain of course...then connect and fill it up and run engine to heat up the water each time and go until there isn't any sign of mud. Then I'd use some prestone or similar flush to also attack any buildup in the system. The flush detergent probably wont help the mud situation much. You may need to fill it, heat and fast drain through the lower hose 5+ times. I would not put antifreeze in it until you know it's clean...but you don't want to run it for very long (days)with just water either.

It's a chore to do it right.

 

i meant the outside of the radiator. and thats exactly wha tthe probel; was. with the AC condenser on, i couldnt get in ther e to clean the radiator off well enough.

thanks for the help guys.

 

ah derr- was wondering how the heck mud got in there!!! sorry cheeze...

 

It costs money to go to school was the favorite saying of a boss years ago. Ford engineers had a great design but hover craft capability was excluded.

 

thanks for the input.

 

no problem dude.my fault , i have a habbit of not explaining things well enough.