gauge readings

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penguins25
Posts: 13
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Joined: Mon Oct 12, 2020 5:05 pm

gauge readings

Post by penguins25 »

my ac in my 08 mgm doesnt work on normal ac
it does work somewhat on max ac

i put my guages on it and this is the readings
low side read 125 constant
high side was going from 200 to 300 cycling
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bohica2xo
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Joined: Wed May 11, 2016 4:12 pm
Location: Las Vegas, NV

Re: gauge readings

Post by bohica2xo »

What exactly is an "mgm"?

It sounds like a coupler malfunction. Low side.
penguins25
Posts: 13
Joined: Mon Oct 12, 2020 5:05 pm

Re: gauge readings

Post by penguins25 »

mercury grand marquis
penguins25
Posts: 13
Joined: Mon Oct 12, 2020 5:05 pm

Re: gauge readings

Post by penguins25 »

whats a coupler?
Dougflas
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Joined: Mon Apr 18, 2016 6:10 pm

Re: gauge readings

Post by Dougflas »

The low side fitting on the hose does not sound as if it has the proper connection.
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Cusser
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Joined: Sun Apr 24, 2016 6:29 am

Re: gauge readings

Post by Cusser »

penguins25 wrote:my ac in my 08 mgm doesnt work on normal ac
bohica2xo wrote:What exactly is an "mgm"?
Penguins, you assumed we would know what "mgm" means????
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penguins25
Posts: 13
Joined: Mon Oct 12, 2020 5:05 pm

Re: gauge readings

Post by penguins25 »

please help yall
i really want to fix my ac and dont know where else to go
penguins25
Posts: 13
Joined: Mon Oct 12, 2020 5:05 pm

new readings

Post by penguins25 »

just went out there and put the gauges on and here is what i got
low side 75-150
high side 300-500

both sides cycle back and forth through them numbers

my ac blows cool not cold

edit:
these readings were taken on max ac
theres a normal ac setting i can put it on but the ac doesnt blow as cool on this setting
i can go take anorther reading on normal if this would be helpful
Dougflas
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Joined: Mon Apr 18, 2016 6:10 pm

Re: gauge readings

Post by Dougflas »

Readings are too high. Spray the condenser with a water hose while monitoring the high side pressure. Does it drop like a rock? If so, start by checking airflow across condenser. Check the cooling fan also. If the high side drops, does the low side drop also?
penguins25
Posts: 13
Joined: Mon Oct 12, 2020 5:05 pm

Re: gauge readings

Post by penguins25 »

i put the gauges on and got the water hose

its doing the exact same thing as before its going back and forth between
low side 75-150
high side 300-500
the water on the condenser does not drop the readings
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