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1999 Saturn SL1 Car overheats

Tiny
CM4171
  • MEMBER
  • 1999 SATURN SL1
  • 4 CYL
  • 2WD
  • MANUAL
  • 180,000 MILES
My car overheats and the heater doesn't work. I thought it was the thermostat, but after changing it the car still overheats and the heater still doesn't work. The fan kicks on as soon as it begins to overheat. Is it the heater core or something like a clogged radiator?
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Thursday, November 4th, 2010 AT 8:32 PM

1 Reply

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Sound's like you need a coolant temp sensor and a new radiator cap.Also inspect the connector to the sensor if it's corroded then you will have to replace the connector too.The sensor is only 10 make sure you get a brass tipped one the plastic tipped one's crack.I posted a diagram to show you where the sensor is.


https://www.2carpros.com/forum/automotive_pictures/416332_1998_SL2_coolant_temp_sensor_test_part2_4.jpg

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Thursday, November 4th, 2010 AT 8:49 PM

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