Hi Guys,
This is on a 99 that I helped my friend buy. The PO had a flush/fill valve put in on the top hose that goes into the heater core, and the reserve tank was well below the "add" line. I filled the tank.
After reading all kinds of info I have bought a new 195 thermostat (not installed yet), and am thinking about flushing the core. Supposedly the core was replaced just in 07 (the guy had receipts).
I'm concerned b/c after a trip yesterday, both in (top) and out (bottom) hoses to the core were really hot, but yet, no hot air from the vents (warm at BEST). So, does this definitely sound like the core needs to be flushed, or could it be just the thermostat? I'm just looking for as much info as I can find before getting into it.
On a side note, the PO told me that he had shop put the flush/fill valve on because "all jeeps have a problem with the cooling systems gunking up". I have never heard/read this before, was he possibly referring to the pre 91 closed systems? Also, should I do away with the "T" cap/valve assembly and replace it with a stock hose? Thanks for any help!
This is on a 99 that I helped my friend buy. The PO had a flush/fill valve put in on the top hose that goes into the heater core, and the reserve tank was well below the "add" line. I filled the tank.
After reading all kinds of info I have bought a new 195 thermostat (not installed yet), and am thinking about flushing the core. Supposedly the core was replaced just in 07 (the guy had receipts).
I'm concerned b/c after a trip yesterday, both in (top) and out (bottom) hoses to the core were really hot, but yet, no hot air from the vents (warm at BEST). So, does this definitely sound like the core needs to be flushed, or could it be just the thermostat? I'm just looking for as much info as I can find before getting into it.
On a side note, the PO told me that he had shop put the flush/fill valve on because "all jeeps have a problem with the cooling systems gunking up". I have never heard/read this before, was he possibly referring to the pre 91 closed systems? Also, should I do away with the "T" cap/valve assembly and replace it with a stock hose? Thanks for any help!