On a Chrysler/Dodge/Jeep, no.
Not that I know of.
The temp sending unit may be shorted to ground. Unplug the sending unit to see if the gauge drops to cold. If it does, you have a faulty temp sending unit.
The temp sending unit on the engine could be unplugged or faulty.
engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty.
Pipes can make a knocking sound due to water hammer, which happens when water flow is suddenly stopped or redirected, causing pressure to build up and create the noise. This can be caused by loose pipes, high water pressure, or a faulty valve.
Could be a faulty connection or engine temp sending unit located on the drivers side of the engine between cylinder 3 and 5 spark plugs.
I would get a mechanics stethoscope and have a listen at various areas to locate the noise first.
It may be that the engine coolant temprature sensor has gone faulty. It may well be sending the wrong signal to the ECM causing the ECM to think the engine is hot when in fact the engine is cold.
Faulty sending unit.
Coolant temp sensor (not the temp sending unit) may be faulty. The year, make, model and engine info would help.
assuming there is no abnormal noise (knocking or rattling), and this happens independent of engine rpm, and you are inferring this from the gauge reading, it sounds like either 1. bad sending unit (common) 2. faulty wiring (common) 3. bad gauge (least likely judging by your description)