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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 09-30-2009, 12:51 PM   #1
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I read some were the information on A/C codes was in tech info, am I gettin old or what cause I don't see them. dh2

Have a code 48 I am trying to resolve
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Old 09-30-2009, 02:46 PM   #2
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Never mind, I found it!!!!
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Old 09-30-2009, 09:36 PM   #3
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Aint that how it always works, you finally ask, and there it is.
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Old 09-30-2009, 11:14 PM   #4
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Rite... Sometimes you have to find the correct wording when searching.

I had a A/C code 48, if I read it correctly it means heavy refrigerant leak. I hooked up my gauges and the system is full so I cleared the code and sure as **** the compressor fired up and it'* cooling fine.

The A/C is actually cooling better sitting at idle than before it threw the code, it seemed like before the head pressure was getting up there after sitting in traffic and it would start blowing not as cool. First I thought it was overheating a bit hitting 220-230 but it looks like they run hot from what I have been reading. I am seriously thinking about sending my ECM out to have the cooling fans temp range changed as well as what ever else the do to tweak them... They can change that rite???
If not I can see a additional fan in front of the condenser set at 185-200 in the future. It gets hot as hell around here and I tend to drive it like I stole it.. so I am not cool with that 230 crap


Maybe just a one time deal with the code, I don't know.... I am open for suggestions


God I love that Smilie dh2
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Old 09-30-2009, 11:24 PM   #5
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If anyone can make the changes to your computer it'* these guys. Sinister Performance, LLC.

Keep a eye open for the code, might have been a fluke.
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Old 10-01-2009, 02:44 AM   #6
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Its gotta be a fluke.

I put a drilled 180 t-stat in and pulled the radiator to check for crap blocking airflow over the weekend and have not really drove it untill tonight and I put about 100 miles on it and engine temp was a steady 190 and the A/C worked great. The temp was getting high enough before to were it started affecting performance and loosing boost and it really did not have to be that hot outside to do it so I was pleased with the drive tonight, not to mention I was starting to think it had a bad cat on it..

The more I drive this car the more I like it, people think its a sporty looking Grandpa car until it spanks that....Well...You know
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Old 10-01-2009, 02:47 AM   #7
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Oh and thanks for the info on Sinister Danthurs
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