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goat794
New User
Jul 27, 2013, 6:27 AM
Post #1 of 7
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ac not cooling correctly
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2003 mercury grand marquis
i have a 2003 mercury grand marquis. my ac compressor was making noise so i had it replaced and put in a new dryer and orifice tube, i found pieces of metal on the orifice tube when i removed it. i flushed the system evacuated and recharges the system, i now find that the temp goes up and down and when its hot out the temp is goes from 44 to 58 and then i drive it goes down. any thoughts as to why this is happening? the pressures are low side around 40 and high side about 225. i also noticed that sometimes the evaporator freezes and when it thaws it drips out of the drain.. thanks for any help
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 27, 2013, 7:05 AM
Post #2 of 7
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Re: ac not cooling correctly
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You should have also replaced the condenser and completely flushed the rest of the system. You also need to look at the cooling fan operation for a cause of the original failure.
I'm hoping you weren't foolish enough to use a reman compressor on this.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Jul 27, 2013, 7:06 AM)
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goat794
New User
Jul 27, 2013, 8:41 PM
Post #3 of 7
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Re: ac not cooling correctly
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i replaced the condenser and used a new compressor i would not use a rebuilt. i was thinking since i have a electronic fan and not the old style fan that might be the problem but not sure. the fan does run all the time and i have a oil cooler behind the radiator and then the condenser
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goat794
New User
Jul 28, 2013, 5:03 PM
Post #5 of 7
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Re: ac not cooling correctly
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well that was done can you offer anything to resolve this issue
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Hammer Time
Ultimate Carjunky
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Jul 28, 2013, 5:07 PM
Post #6 of 7
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Re: ac not cooling correctly
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Those pressures aren't conducive to a freezing evaporator.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
Ultimate Carjunky
/ Moderator
Jul 28, 2013, 5:17 PM
Post #7 of 7
(2166 views)
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Re: ac not cooling correctly
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How did you charge the system?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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