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Re: Ac compressor
Last 2 or 3 Trailblazers I worked on- for a/c inop- had the air gap too wide- a/c voltage was at clutch on compressor- just could not draw that armature drive plate in against the spinning pulley face. Answer has been simple- remove the drive plate 10mm nut and wiggle loose the plate that is on a splined shaft. then carefully remove any and all shims in behind. Throw the thickest shim over your shoulder and replace clutch drive plate with remaining shims if any. Now air gap is back to speck and compressor will run another 5 yrs.
Can be done while a/c compressor is still on vehicle and charge does not have to be removed.
If this is not your issue- please ignore....
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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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