ELC issue - Page 3 - 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 07-08-2006, 10:00 AM   #21
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Cheetah, disconnect the black wire connector on the valve in the trunk behind your right rear passenge seat. With that disconnected, if you turn your inflator on, it'll send the air to the struts instead of the inflator. Fully lift the back of the car in this manner.

After it'* as high as it'll go, pull the ELC fuse and watch over time, or better yet, spray soapy water on the strut boots and watch for bubbles.
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Old 07-08-2006, 10:59 AM   #22
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Quote:
Originally Posted by 1993 SLE
Quote:
Originally Posted by Cheetah
Is there a way to get oin in the compressor. I tried to get my compressor off and it was a bit**.
yes the compressor comes apart....Bill and I dismantled it last night.....and it still leaks....i believe that Boosty is on the way to the JY as i type for a new compressor
the leak is coming from the head/purge valve assembly, non serviceable for the most part. (meaning it might be possible, but not practical)
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Old 07-08-2006, 11:07 AM   #23
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Please note that Cheetah'* problem may be very different, and still needs to be diagnosed. Boosty'* problem is somewhat rare.
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Old 07-08-2006, 12:55 PM   #24
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Quote:
Originally Posted by sonoma_zr2
Quote:
Originally Posted by 1993 SLE
Quote:
Originally Posted by Cheetah
Is there a way to get oin in the compressor. I tried to get my compressor off and it was a bit**.
yes the compressor comes apart....Bill and I dismantled it last night.....and it still leaks....i believe that Boosty is on the way to the JY as i type for a new compressor
the leak is coming from the head/purge valve assembly, non serviceable for the most part. (meaning it might be possible, but not practical)
it is coming where the magnet housing mates to the head....( i dont know my ELC compressor parts so bear with me) there should be a seal between the 2 parts and it was leaking out of there and also where the wires go through at the grommer the Magnet drives the piston and we also dissambled the head the part above the piston.....

there was ALOT of Corrosion inside the housing of the magnet
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Old 07-08-2006, 03:29 PM   #25
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Ok...someone smack Pat for me...

There should be a wide open port there on that motor housing. Because mine was plugged the water seal between the housing and compressor was showing a leak. This should never show a leak Pman.. it should have flowed directly out the hole that was plugged. The test of the output tube that showed leakdown was enough to warrant a different compressor.

I cleaned my bracket, primed it.. rubber undercoated it.. and tested the new compressor for over 20 minutes. No leakdown was visible. New compressor is now on the car and seems to be holding find and doing great.

Thanks Travis and Bill for the technical help..I understand the system much better now and can help others diagnose.. thanks to Pat for the hands on assist.
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Old 07-10-2006, 10:29 AM   #26
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Follow up: The swap out of the leaking compressor was the solution.
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Old 07-10-2006, 10:45 AM   #27
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ya ite interesting how QUIET the new compressor is compared to the old one.....you can barely hear the thing, prolly casue the old one was running excessively.....interesting note on the new one.....before it kicks on, it purges then inflates...nothing to worry about just something that caught my attention
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Old 07-10-2006, 10:50 AM   #28
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Quote:
Originally Posted by 1993 SLE
ya ite interesting how QUIET the new compressor is compared to the old one.....you can barely hear the thing, prolly casue the old one was running excessively.....interesting note on the new one.....before it kicks on, it purges then inflates...nothing to worry about just something that caught my attention
that is how it is supposed to work, relieves pressure so it can start easier. all of these functions are controled by the elc switch.
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Old 07-10-2006, 10:51 AM   #29
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actually, it purges, then immediately starts pumping, then closes purge soleniod. prevents the compressor from not being able to start from air lock.
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Old 07-10-2006, 10:55 AM   #30
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Quote:
Originally Posted by sonoma_zr2
actually, it purges, then immediately starts pumping, then closes purge soleniod. prevents the compressor from not being able to start from air lock.
yup that is exactly what it is doing....the old pump did not do that at all
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