radiator

2001 PROTON
98 MILES • 2WD • MANUAL
Avatar
TAYLOR_LUCY1
  • MEMBER
  • 3 POSTS
my heater went from hot air to cool air blowing looked at the rad and the warter brown its only just happened last night will draining it & putting new anti-freeze be ok or could there be other damage? at first i was thinkig it was the stat the car my partners she only had the car 2 months or so its a proton satria gti 2001
Dec 4, 2010 at 1:00 AM
Advertisement
Avatar
KHLOW2008
  • ✓Experienced Mechanic
  • 41,814 POSTS
Possible causes for the problem are :

1. Faulty thermostat.
2. Clogged heater core.
3. Heater valve ( if equipped)
4. Lack of coolant.

You need to check all the above. Flushing the radiator and heater core would be recommended as you mentioned the coolant being dirty.
Dec 4, 2010 at 4:33 AM
Avatar
TAYLOR_LUCY1
  • MEMBER
  • 3 POSTS
thanks i will have alook also would that course the car to idle high it goes from lust below 1000 to 1500 to 2000 up & down it all happened at the same time thanks for your help.
Dec 4, 2010 at 4:43 AM
Avatar
KHLOW2008
  • ✓Experienced Mechanic
  • 41,814 POSTS
If the ISC system used is equipped with coolant hoses, lack of coolant would cause that. The other would be a faulty Idle Solenoid Control motor.

If the idling speed is adjusted out of specs, it would surge. Check for vacuum leakages.
Dec 4, 2010 at 5:05 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
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.