engine temperature rises

1993 FORD PROBE

160,000 MILES

ODURTTY

MEMBER
1 POST

i replaced the water pump the thermostat the radiator and all the hoses. the temperature rises but when i turn on the heat it lowers.

I have a 1993 ford probe.i replaced the water pump, the thermostat, the radiator and all the hoses. now when im driving the temperature raises high but if i cut on the heat the temperature lowers what could be causing that.

Oct 8, 2012 at 2:55 AM

CARADIODOC

✓ASE Certified Mechanic
34,321 POSTS

Electric radiator fan is not turning on. Your dandy observation that the heater lowers the temperature is because the heater core is a small radiator. It just needs air flow to to its thing.

Oct 8, 2012 at 3:03 AM

CJ MEDEVAC

✓ASE Certified Mechanic
11,004 POSTS

COULD BE A PROBLEM WITH YOUR COOLING FAN(S)

THEY MIGHT NOT BE TURNING ON BECAUSE

A FUSE IS SHOT

A RELAY IS NOT WORKING (THIS SEEMS TO BE THE COMMON THING)

THE FAN MOTOR(S) ARE SHOT....IF YOU HAVE 2, UNLIKELY THEY WENT OUT AT THE SAME TIME.......HOWEVER, MAYBE ONE WENT OUT (UNNOTICED) NOW THE OTHER ONE HAS.

SOMETIMES THE MOTORS LOCK UP---WITH THE VEHICLE OFF---DO THEY SPIN FREELY?

WHY DON'T YOU SEE IF THEY COME ON----REPORT BACK HERE FOR MORE INFO.....WE MAY BE ABLE TO IDENTIFY THE LOCATIONS OF STUFF TO CHECK.......BEFORE YOU RUSH OUT AND BUY SOMETHING....MAY CAN HELP YOU THERE TOO!

WAITIN' ON YOU

THE MEDIC

Oct 8, 2012 at 3:18 AM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.