Mechanics

UNABLE TO DETERMINE CAUSE OF OVERHEATING

1993 Ford Tempo

Engine Cooling problem
1993 Ford Tempo 4 cyl Front Wheel Drive Automatic 60000 miles

So I consider myself to be pretty good with cars, but I am kinda stumped on this one.

Driving down the highway, I noticed the temperature of my car is running pretty hot. I pulled off to the side of the road and looked at the reservoir and it was empty of fluid. I quickly put fluid into the container and continued to drive. However, I noticed that the car was STILL running hot. So, I set up a date to get the car repaired. While the day approached, I constantly check the radiator fluid levels, but the fluid levels were staying pretty consistent. I go over to my friends, open the housing of the thermostat and notice that the thermostat is in a couple of pieces. We remove the thermostat (I am pretty sure we got all the pieces), and put a in a new thermostat.

At this point, the car is STILL running hot. So we think that the thermostat may be bad. We open the housing again, but then notice that there is very little fluid in the area. We remove the thermostat completely, and put the housing back together, run the car for a little bit and then check to see if any fluid is moving through the system by disconnecting the upper hose. All that the house had was a lot of air under high pressure.

At this point, I notice that the reservoir fluid level is *slighty* lower then when I filled it. (But the temperature has been very different when I was checking it) At this point, I believe that it is the water pump is broken for two reasons:

-> Faulty water pumps have a leaky weep hole
(My friend is unsure how much fluid is actually coming out if any)
-> It makes a light squeaking sound
(I may be thinking that I am hearing it)

However, the water pump is VERY difficult to replace and it looks new (bought this car from a family member a couple years). Right now, I am looking for any other alternatives before I resort to this. Ideas?
Avatar
Kevjames3
March 10, 2010.



Is the waterpump idler pulley and belt ok? Enough tension? A slipping belt can cause problem. Air in system usually means head gasket leak/cracked head. You could try retorking head. But maybe you never got system full? Wait till cold, fill at radiator while sqeezing upper hose to dislodge air. Close radiiator and make sure water bottle has enough/extra. Warm up till normal temp and shut off and let get cold. Do this 2 times watching that water bottle does not go empty. Now try to drive. If lage air pocket is back then you have a leak or head/gasket problem. If it's the weep hole you can plug it and see if car is fine then. Then replace pump.

Tiny
Fixitmr
Mar 10, 2010.