Model: suburban k2500
Engine Size: 7.4
Refrigerant Type: r134a
Ambient Temp: 105
Pressure Low: 45
Pressure High: 155
Country of Origin: Mexico
My original compressor is getting a bit tired and starting to leak around the middle (2pc).
Blows cold (sub 40 degree) air at freeway speed, warms up to about 60 at low speeds.
I was recently given a "new" AC Delco compressor #15-20144 / GM# 1136518.
It looks identical - with the exception of the front of the clutch being slightly differently
shaped. Same number of ribs, mounting bosses, plug, etc. But the part number that
it crosses to (15-20144) does not show fitting my Suburban.
The parts books show 15-22124A as the correct number.
Is there a difference in the two - higher capacity for the dual air or ???
I don't want to go to the trouble to install if it's not large enough.
Thanks for any help.
Edited: Fri August 02, 2013 at 3:14 AM by Vega$
It is the same- all that matters is coil plug, pulley size and switch port in the rear head.
The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......
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