Every time I shut off my car after having the air conditioning on, I hear noises from the dash/blower motor area for about 20-30s after the car was shut off. It makes a hissing sound, like a vacuum leak would, and gets to be higher pitch. After it becomes a high pitch wine, it then cuts out. Does this indicate a leak in the system somewhere? The air conditioning works just fine otherwise and the blower motor works good too. Any thoughts?
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1989 Lincoln Town Car Signature Series | 249k miles, current project car
2018 BMW 430i xDrive M-Sport | 50k miles
2018 Toyota Tacoma TRD Sport | 97k miles -
Normal.2020 F250 - 7.3 4x4 CCSB STX 3.55's - BAKFlip MX4
2005 Grand Marquis GS - Marauder sway bars, Marauder exhaust, KYB's
2003 Marauder - Trilogy # 8, JLT, kooks, 2.5" exhaust, 4.10's/31 spline, widened rear's, metco's, addco's, ridetech's 415hp/381tq
1987 Colony Park - 03+ frame swap, blown Gen II Coyote, 6R80, ridetechs, stainless works, absolute money pit. WIP -
it's the orifice tube and the AC pressure equalizing. +1 Normal.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)
Originally posted by gadget73
... and it should all work like magic and unicorns and stuff.
Originally posted by dmccaig
Overhead, some poor bastards are flying in airplanes.Comment
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That's good news then! I was worried that there was a leak somewhere since it was converted to R-134
1989 Lincoln Town Car Signature Series | 249k miles, current project car
2018 BMW 430i xDrive M-Sport | 50k miles
2018 Toyota Tacoma TRD Sport | 97k milesComment
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thanks for posting this L1011tristar17, I've been wondering the same thing all summer but I figured if something was wrong with it I'd just bury my head in the sand cause I didn't want to deal with it and it's been working fine.
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gurgling and hissing noises are pretty standard for a short time after shutting it off. If it keeps doing it, then perhaps you have a problem. If its leaking bad enough that you can hear it, it would be empty in a very short time anyway.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousersComment
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