The operating temperature for a 2004 Jeep with a 4.0 liter engine is between 180 and 210 degrees. The optimum temperature would be about 200 degrees (Fahrenheit).
Approx 200 deg F
Normal operating tmp is between 195 and 220
195-215 deg F.
Depending on the type of motor you have the temperature should be around 195 degrees.
Normal operating temperature should be approx. 210 degrees F.
It should run between 200-215 degrees.
Around 30-40 psi at full operating temperature.
Running at operating temperature around 40 psi.
Diagnostic code 43 in the 1997 Jeep Grand Cherokee refers to an issue with the distributor. This often causes the Jeep to stall at operating temperature.
Keep the coolant temperature below 260 degrees Fahrenheit or you may overheat it.
A full operating temperature it will be around 40 psi.