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08-03-2019, 03:16 PM | #1 | |
AF Newbie
Join Date: Nov 2010
Location: jackson, Mississippi
Posts: 36
Thanks: 4
Thanked 2 Times in 2 Posts
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AC suddenly stops then next start, its working
AC was running fine, then next startup, its not working (blowing normal but hot) .....after restarting engine, the AC is working again. Could this be a sensor or something else going out?
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08-03-2019, 07:54 PM | #2 | |
AF Enthusiast
Join Date: Jul 2005
Location: troy, Ohio
Posts: 2,311
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Re: AC suddenly stops then next start, its working
Next time it is not working when it should- take a look at the front of the compressor. Is it turning? most likely not.....very common issue is a wide air gap....where the electromagnetic coil can't pull in the clutch when the coil is warm. Cold start up is fine, resistance is lower when cold, but soon rises enough that after the first cycle, it can't overcome the wide air gap. Answer is to pull the front of compressor clutch driver off and remove a shim and re-install - the air gap will be less and you can go another 100k miles until the gap wears too wide again....
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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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whw47 (08-11-2019)
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