udidwht
Well-known member
Noticed after my trip to Vancouver BC that down low on the passenger side of the AC condenser/oil cooler seems to be leaking. The fins were wicking oil upwards about 1.5-2in. Ran my finger across the lower side and sure enough engine oil. Did just over 400 miles with no oil needing to be added. I'm certain it was these damn rough roads. Not decided whether I'll tackle this job myself or have a shop hit it. This is a 1994 P-30 chassis with 454 TBI w/4L80E
Where can I get the dual unit?
As for the AC it works and is cold. Has since I bought the RV in Sept 2014. Don't use it often though.
There's a line from AC compressor at top drivers sides that connects then straight down from it at bottom there are (2) oil cooler lines that connect on a separate row on the same cooler. They both go into engine near oil filter.
I'm out of town but will get some pics of it and upload them. Some of the manuals refer to it as AC condenser (w\oil cooler). Best description of mine (1994) is the following...
Appendix 2-4 page 2-15
https://www.gmcmi.com/wp-content/uploads/2014/05/P30-Chassis-Manual.pdf
Where can I get the dual unit?
As for the AC it works and is cold. Has since I bought the RV in Sept 2014. Don't use it often though.
There's a line from AC compressor at top drivers sides that connects then straight down from it at bottom there are (2) oil cooler lines that connect on a separate row on the same cooler. They both go into engine near oil filter.
I'm out of town but will get some pics of it and upload them. Some of the manuals refer to it as AC condenser (w\oil cooler). Best description of mine (1994) is the following...
Appendix 2-4 page 2-15
https://www.gmcmi.com/wp-content/uploads/2014/05/P30-Chassis-Manual.pdf