Hi everyone. I've been chasing this issue all summer, which finally culminated in me replacing the entire cooling system last weekend only to have it still run hot in traffic. Jeep is a 1995 sport, 4.0/AW4/242.
The following is brand new:
CTS
2 row all metal CSF radiator
Stant super stat thermostat
OEM Mopar Water Pump
All hoses (OEM with spring in lower hose)
Electric Fan (Dorman)
Fan Clutch (Napa heavy duty ZJ)
Radiator Cap (twice)
Before I replaced all of this I ran a 6 hour chemical flush through the engine and then got all of that out.
I always come off the highway and sit in traffic going to work. I am seeing this:
So what did I do? I turned on the AC and THEN the e fan kicked on. Temp went right back to 210*. So it seems to me that the electric fan works, but just isn't kicking on when it is supposed to at about 220*. Any ideas? I've been searching the site for weeks but can't seem to figure this out. BTW, as soon as I pull the CTS plug the fan comes on and I get a check engine light, just as it is supposed to be.
The following is brand new:
CTS
2 row all metal CSF radiator
Stant super stat thermostat
OEM Mopar Water Pump
All hoses (OEM with spring in lower hose)
Electric Fan (Dorman)
Fan Clutch (Napa heavy duty ZJ)
Radiator Cap (twice)
Before I replaced all of this I ran a 6 hour chemical flush through the engine and then got all of that out.
I always come off the highway and sit in traffic going to work. I am seeing this:
So what did I do? I turned on the AC and THEN the e fan kicked on. Temp went right back to 210*. So it seems to me that the electric fan works, but just isn't kicking on when it is supposed to at about 220*. Any ideas? I've been searching the site for weeks but can't seem to figure this out. BTW, as soon as I pull the CTS plug the fan comes on and I get a check engine light, just as it is supposed to be.
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