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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 09-19-2003, 08:38 PM   #1
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i noticed you dont have any thing in tech info on trouble shooting these? well when the arent working correctly how hard is it to replace them? where is the fuse? 94model
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Old 09-19-2003, 08:56 PM   #2
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What'* wrong with it?
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Old 09-20-2003, 12:32 AM   #3
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everything but the actual speed? (mph,left,right,check gauges,highbeam all light up and work proper) one thing i noticed is that it doesnt reset it self when i turn the key?
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Old 09-20-2003, 10:32 AM   #4
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Does the dashboard speedometer work properly? Does the HUD speed light up, or does it just stay at zero?
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Old 09-22-2003, 04:47 PM   #5
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Quote:
Originally Posted by fuddyduddy121
Does the dashboard speedometer work properly? Does the HUD speed light up, or does it just stay at zero?
Back when I was having contact-pin problems in the gauge cluster (flickering displays, etc.), I noticed that the HUD was affected as well. Some of its inputs go through the gauge cluster, so if they're dropping out, I'd suspect the usual gauge cluster dirty-contacts problem here, rather than anything within the HUD unit itself.
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Old 09-22-2003, 05:28 PM   #6
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Some of them do, I believe the speed comes directly from the PCM. But still need to know if the speed reads zero or is it blank?
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Old 09-22-2003, 07:24 PM   #7
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Old 09-22-2003, 09:28 PM   #8
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What do you mean when you say it does not reset?

Check Fuse 5A. Is it OK?
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Old 09-22-2003, 10:24 PM   #9
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when you start the car (you know how everything lights up?) ok the speed remains blank the whole time,it never lights up not even after the car is running?
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Old 09-22-2003, 11:21 PM   #10
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Bad sign. You need to check the dark green and white wire for voltage. You can do it at terminal 8 of the HUD control module, or at the PCM.
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