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07-19-2016, 09:12 AM | #1 | |
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95 astro won't take a/c charge
Recently our 95 Astro air quit blowing cold and I took it to my local garage for a check and a charge. My mech said he couldn't get the system to take any charge at all. I was wondering now if the system is ok and some kind of air diverter flap or some such might be malfunctioning?
He doesn't have the OBD 1 troubleshooting capabilites and as yet I have not found anyone in my area (Crossville, Tn) that does. Although truthfully I am not knocking myself out because it's my wife's van and she is not a fan of A/C anyway but it will be needed this winter for the defrost. |
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07-19-2016, 12:38 PM | #2 | |
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Re: 95 astro won't take a/c charge
To test compressor yourself-- see if you can spin front snubber with one finger- also notice if there a little "catches" as you rotate it-- then report back...
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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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07-19-2016, 01:44 PM | #3 | |
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Re: 95 astro won't take a/c charge
I can turn the compressor clutch but it is tight. I started the engine and cycled the dash control to MAXAIR but the clutch did not engage. Oh, yeah, my mech told me that he tried bypassing everything he could get at to see if a charge would flow but with with no success. Could this be just a bad clutch?
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07-19-2016, 01:52 PM | #4 | |
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Re: 95 astro won't take a/c charge
ll it could be bad low pressure switch or connector, or bad high pressure switch (on back of compressor) or connector. Or bad coil connector, or bad coil-- needs diagnosed- seems your mechanic is inept.
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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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07-19-2016, 01:59 PM | #5 | |
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Re: 95 astro won't take a/c charge
Now that you remind me he did say he bypassed both high and low pressure switches. Can't remember about the connectors themselves. Is the OBD involved in this at all or can any decent A/C tech handle it? When you say "coil" you are meaning the clutch coil correct?
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07-19-2016, 02:41 PM | #6 | |
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Re: 95 astro won't take a/c charge
To check electrically - first thing to do is jumper the a/c relaY-- I f pump comes on then problem is an input to ecm-- like a switch or connection at a switch, or a/c relay itself---did he do this? Yes, coil is clutch coil. The astro van is probably the most simplistic a/c system known to man...an east african ape could fix it....but your mechanic ...who knows...
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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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07-19-2016, 02:47 PM | #7 | |
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Re: 95 astro won't take a/c charge
The young man is not A/C certified but can charge up normal functioning systems. I will call around and see if I can find someone to work on it. Thanks for this info as I will be fore armed to deflect BS from some hobgoblin.
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