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1994 Saturn SC1 Repair Question


Topics covered: Sensor, Coolant, Radiator.
Mileage: 140,000 miles.

Asked on October 7, 2011

Where do i fill the transmission fluid at and could that affect the engine to over heat if its low?

The engine was over heating after 2 hours of driving. What issues could be the main problem to cause overheating? All fluids are good coolant, power steering, transmission fluid is low.
Avatar Asked by azdarkwarrior

Answer

Replied on October 7, 2011

Fill the trans through the dip stick tube. As far as overheating, that wouldn't cause it. Check the thermostat, check to make sure the radiator is clean and not plugging...

Tiny Answered by Jacobandnickolas (expert)
57,318 answers provided
Replied on October 7, 2011

Just to add to this one most of the overheating on those cars is caused by a bad coolant temp sensor and possible corroded connector or a bad cooling fan motor.Does the cooling fan come on at about 3/4 on the temp gauge?If not there are two coolant temp sensors on that engine screwed into the head below where the upper radiator hose goes onto the head.Unplug the the bottom sensor with two wires going to it a yellow wire and and black wire then start the car the cooling fan should turn on.If it does then replace the bottom coolant temp sensor.The new sensor should have a brown connector where the coolant temp sensor connector goes on.Also inspect the coolant temp sensor wire harness connector the terminals should be silver if there blue or green replace the connecotor also.Let me know what you find.

Tiny Answered by saturntech9 (expert)
23,156 answers provided
Replied on October 7, 2011

yes the fan kicks on when it should.

Tiny Response from azdarkwarrior
11 questions asked

Replied on October 7, 2011

So the fan comes on at 3/4 on the temp gauge?Also when it overheats what is the temp gauge reading?When the fan comes on is there lots of air being pulled thru the radiator?Because i have seen bags sand fur debris clogging the radiator and ac condensor causing the engine to run hot.

Tiny Answered by saturntech9 (expert)
23,156 answers provided