BUDGET A/C PROGRAMMER REPAIR - 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 01-15-2007, 01:00 AM   #1
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On 92-99 Bonnevilles equiped with electric climate control, a common part to fail is the a/c programmer. When it does fail, the result is air only blowing out of the defrost vents.

The cause:
At the factory a grease coating is used when connecting the vacum line connector to the programmer. Over time, this grease causes deterioration of the programmer'* hard nipples turning them into soft nipples :( which causes a small vacum leak.

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What I did was remove the programmer'* cover, cut and remove the programmer'* connector, cut and remove the vacum line vonnector, and directly link them, bypassing the failed connection.
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After this, I snapped the cover back on, reinstalled into my car, and tested for proper operation.
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