Did I Kill My Truck?

[bttf]

Hello,

Yesterday I took a 6-hour drive with my Ford Ranger in the dead Florida heat. About 3 hours in, the temp gauge was at the MAX, but I suspect my temp gauge is a little off, because on previous drives it would reach max but when I check the engine, everything looks fine (rad fluid not boiling, no hissing, radiator tubes not too hot). Yesterday was definitely the hottest day I've taken this 6-hour drive though.

So I stopped and I see that my rad fluid reservoir has been bubbling and splashing all over the place under my hood. I forgot to mention that my rad fluid reservoir cap was missing, so at this point I took the windshield wiper cap and put it on the rad reservoir. So I let it cool down and let the hissing stop. Then I continued driving.

The temp gauge hit MAX real quick, but I persisted on driving for another hour or so. Then I pulled over and popped the hood. This time the rad fluid was boiling, and I watched as it bust open the cap and started spewing all over the place. Again, after the engine cooled down, I replaced the cap and continued driving.

The temp gauge again hit MAX real quick, like instantly as I reached 50 mph. I continued driving until I started hearing CLICKING NOISES coming from some where UNDER THE ENGINE. Also there was a point where I could not power the truck to go above 50 mph. So at that point I pulled over and got it towed. When I pulled over, there was a lot more steam coming out this time, and it looked to be coming from a large hose that was connected to the radiator...

The truck was towed to a local mech shop, and I called them today. They said that the truck needs a new radiator, "gasket" and thermometer.. coming out to 282 w/ labor and tax. I told them about the clicking noises and they said they can only check for that after they've replaced the radiator and such...

My concern is, did I already kill my truck? I don't want to replace the radiator and gasket only to find out later that the entire engine needs to be rebuilt.

I hope she ain't a goner : [

[BrianDye]

Definitely doesnt sound like you did her any good; but as far as the rad and whatnot, get the parts and do it yourself, save about 150$

[Scott B.]

Each time you let the engine cool, did you refill the radiator?

[JCat]

Nothing kills an engine faster than overheating.

In my opinion, YES, you killed your truck.

I would have the mechanic test each cylinder's compression before putting any money into a new radiator, gasket, and thermostat.

[tmwalsh]

The mechanic can certainly pour in some water, and crank it over to see if it will run or not. However, it is possible the head gasket has given up the ghost or the head has cracked from the abuse the engine was given.
The radiator could have gotten plugged [likely] from no maintenance as it will form 'bloom' and plug the tubes. General rule is overheating at slow speeds is the pump, overheating at highway speeds is the radiator.
Buy a new cap. put in some antifreeze for a 50-50 mix, replace any hoses that have blown, and drive it home, SLOWLY, especially if the gauge reads hot. Or pay the man...
tom

[bttf]

Originally Posted by Scott B.

Each time you let the engine cool, did you refill the radiator?

If you mean the reservoir, no.. It was already at the recommended fill line. Every time I stopped, I let it stop bubbling...

Originally Posted by Jcat

Nothing kills an engine faster than overheating.

In my opinion, YES, you killed your truck.

I would have the mechanic test each cylinder's compression before putting any money into a new radiator, gasket, and thermostat.

What does testing the cylinder's compression test for?

[cybergasm]

Originally Posted by bttf

What does testing the cylinder's compression test for?

Blown Head gasket for starters

[Blee1099]

Cylinder compression checks for leaks in the cylinder. If you have a bad head gasket, you'll have low compression. More than likely that repeated overheating has probably warped your heads on your motor, possibly even scored the cylinder walls, the thermostat probably needs to be changed along with the radiator possibly and maybe even the hoses. Once a engine overheats, its best just to shut it down and get it towed. That repeated starting up and driving then letting it overheat again and again just does more damage.

[Scott B.]

Originally Posted by bttf

If you mean the reservoir, no.. It was already at the recommended fill line. Every time I stopped, I let it stop bubbling...

I meant the radiator itself. You could have boiled water out of the radiator and still had coolant in the reservoir.