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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-12-2004, 12:16 AM   #1
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i hope someone can help me with this, when i have the heat on it only blows out cold air, it doesn't matter what i turn the temp up to. the only thing i know that is different is that when i turn the car on, the # on the heater control will flash a couple of times then it would stay constant. is this telling me what is wrong? do i just count out how many times it flashes?
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Old 04-12-2004, 12:56 AM   #2
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93 was the last year of on board diagnostics of the ECC panel. It'* telling you that you have a stored code. You cannot pull those codes yourself from the panel. I'm betting you have a code stored for the airmix actuator. You may want to dig in there and see if the door is stuck, and why.
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Old 04-12-2004, 01:13 AM   #3
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it couild be the thermostat isn't opening corectly which would cause it not to heat up. Also your heater core could be going bad...
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Old 04-12-2004, 02:30 PM   #4
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You need to take the car to the dealer and have them pull the climate control codes. I bet your temperature mix door or the actuator are broken.
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Old 04-12-2004, 11:22 PM   #5
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thanks guys, i will check to see if i can just open the door for the heater core.the thing is when i first turn it on, heat comes out but then it starts to blow cold like the door was open and them closes because it is getting the wrong reading, i cleaned out the senser that is next to the lighter on the dash but nothing change.
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Old 04-12-2004, 11:36 PM   #6
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Hows your coolant level? check the rad?
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Old 04-13-2004, 12:04 AM   #7
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the coolent is good, i just change the radiator about 2 months age. the level is good, there is no smell or fluid in side the car so the heatercore should be good and i don't have to add any fluid since the change.
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Old 04-13-2004, 02:11 PM   #8
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I would bet there'* nothing wrong with the sensors, but only pulling the codes will tell.
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