battery dead, now temp light blinking and defrost only - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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 01-30-2008, 01:35 PM   #11
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Beginning in '96 (or '97), there is a vacuum reserve tank under the front passenger corner of the car....in front of the passenger side tire. It is pretty much directly under the battery, but is separated by the sheetmetal of the engine bay. Check the connectors and hoses for leaks there as well.
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Old 01-30-2008, 02:57 PM   #12
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Quote:
Originally Posted by willwren
Electronic climate control in an SE? I assume you have the SLE package (RPO H4U on the spare tire cover).

Airmix actuator doors have been known to crap themselves by breaking a gear after loss of power and power restoration. Do a forum search on 'airmix actuator redneck fix' and you'll see what to check for.
do you know the gm part number for the airmix actuator door part I might need to replace if all the vacuum stuff checks out okay?
thought i would check rockauto and see what they charge for it.

thanks
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Old 01-31-2008, 02:37 PM   #13
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Found in an old thread, for a '98 Bonne, the AC Delco part # 15-71923. Not sure if the part number is the same from year to year though. In that post, the dealer wanted $68.00 for the actuator.

I know I have my old actuator in the garage (somewhere), and I can see what the part number is for it (although mine is a '97).

Hope this helps get you started.
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Old 01-31-2008, 02:41 PM   #14
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Quote:
Originally Posted by Echo SSEI
Found in an old thread, for a '98 Bonne, the AC Delco part # 15-71923. Not sure if the part number is the same from year to year though. In that post, the dealer wanted $68.00 for the actuator.

I know I have my old actuator in the garage (somewhere), and I can see what the part number is for it (although mine is a '97).

Hope this helps get you started.
that price isn't to bad as I was thinking it would be a $400 part

BTW, today the car would only blow cold air until i took the ECC down to 60 degrees then back up to 90 degrees.
this car is crazy
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Old 01-31-2008, 02:56 PM   #15
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That is a very common sign of a cracked gear in the airmix actuator. Messing with the temp up and down can restore some desired temps. So can turning off and restarting the car several times. It'* really hit or miss, but eventually, I could get it to blow hot or cold air...most of the time. I did all of those for a while until the actuator was changed out. It is nice to have control of the temps again.
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Old 01-31-2008, 02:59 PM   #16
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Echo,
I sure am thankfull for all you help.

I've got some free time Saturday and hope to tackle this thing once and for all.

thanks again.
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Old 01-31-2008, 03:03 PM   #17
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Agian, the part number above was for a '98. I would hope they would be interchangable, but I do remember comparing actuators sometime ago, here on the club and each year seemed to have a different part number. (I just can't find any of the pics I thought I had taken with my actuator and the part number)
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Old 02-04-2008, 08:04 AM   #18
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i took a look at the car Saturday and found two vacuum leaks.

the first one was at the vacuum tank under the passenger front fender. The connector there was dry rotted completey and broken off. I bought some vacuum hose and hooked that one back up.

the second one was up on the top side of the cowl under the hood. I had a plastic line that was broken in two. I patched it up to with some vacuum line.

I can now control my air flow direction once again.

I"m still getting a flashing light thou for some reason.

if the flashing doesn't quit I guess I'll try to replace that connector on the programmer box where all those lines go in.

thanks for all the help everyone
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Old 02-04-2008, 11:57 AM   #19
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Glad to hear you have control of your air, again. A vacuum leak in either of those locations could definitely cause loss of HVAC control.

Don't worry too much about the flashing display....yet (unless something else is obviously not working, such as temperature or fan spped, etc.). As long as everything seems to be functional and working properly, give it several days to a week to clear itself out. It takes quite a few consecutive "no fault" start-ups of the car before it will stop flashing.
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