TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

heater broken?

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Old Dec 14, 2010 | 06:54 PM
  #1  
bigred75's Avatar
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From: stedman
Car: 1992 25th anniversary RS Camaro
Engine: 305 T.B.I.
Transmission: ????
Axle/Gears: ??????
heater broken?

hey didnt know where to post this so i figured this would work since i have a tbi. whenever i have my heater on and the car is stopped itll just blow out cold air. now after i start driving for a lil bit it will heat back up until i stop again and then itll start blowing cold air again. anyone know why???? or how to fix it? thanks a bunch.
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Old Dec 14, 2010 | 07:02 PM
  #2  
Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: heater broken?

Check your coolant level and your water pump.
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Old Dec 14, 2010 | 09:23 PM
  #3  
UnderCover89TBI's Avatar
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From: Manteca,California. Nor Cal.
Car: SOLD IT. Mopar guy only now.
Engine: gone
Transmission: gone
Axle/Gears: gone
Re: heater broken?

lack of flow. bad water pump or clogged core are posssibilities.
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Old Dec 15, 2010 | 09:03 AM
  #4  
Jono4820's Avatar
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From: Fox Lake, Illinois
Car: 1991 RS
Engine: 350 TBI
Transmission: 700r4
Axle/Gears: 3.08 lt. slip
Re: heater broken?

Originally Posted by Apeiron
Check your coolant level and your water pump.
+1 coolant level......
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Old Dec 15, 2010 | 10:24 AM
  #5  
speedys85's Avatar
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Re: heater broken?

I would bet your anti-freeze is very very low!
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