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Old 08-14-2016, 09:08 PM   #2
brcidd
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Location: troy, Ohio
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Re: 99 malibu...temp gauge & AC

Is yours a manual a/c system (no digital readout for temp control) if so read on:

Does the green a/c indicator light go off as well-- if so wiggle the fan speed switch- it acts as the "Master" on-off switch for a/c- and the contacts get hardened grease on them that disables the a/c command-- seen a bunch of them. Fix is to remove blower switch and polish the contact surface area with a pencil eraser....
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Automotive A/C Engineer with:
'99 IH 4700 Toy Hauler
(2) '95 GEO Prizms both maroon
'99 GMC Yukon
'95 Chev 3500, 454 Dually Crew Cab- 145k miles-
Wife's Camel trailer puller.
'94 Astro- 370k miles
'94 Firebird Formula- 5.7L 180k miles- gone-
'92 Chevy Lumina Van 3.8L 264k
'86 GMC S-15 - 2.8L 154k
'87 Buick Park Ave . 187k
'86 Buick Park Ave 3.8L 199k miles- gone
'77 Chevy Vega- 2.5L 175k miles gone but not forgotten
'68 Camaro 396 4 spd RS/SS -72k miles-
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