The meter is out of adjustment.
Your tachometer is broken.
Your engine is not running or your "RPM gauge" is broken.
RPM tells you how many revolutions per minute your engine is running. When you're in park, the engine is still going, so RPM's will be above zero.
Check the cable plug and rpm sensor on the harmonic balancer
No, an engine idle RPM being not zero is not a problem. If the idle were zero, the engine would not be running!
rpm goes up and does not change gear below 60
The rpm of the engine - revolutions per minute
Zero rpm at the drive does not exclude the presence of a holding torque on the shaft of the motor due to load in some circumstances. The motor current will be a reflection of the torque presented at the shaft.
Mean of rpm is in fan is that in a minute how much revulation is completed by a fan.
The RPM in "Power Rangers RPM" was originally meant to mean "Racing Performance Machines" however after a car-related movie tanked in the movie theaters, it was decided to not have RPM mean anything officially.
As engine rpm increases so does pto speeed And if you tach your motor to an excessive amount of RPMs while the PTO is engaged, it will destroy that PTO, leading to zero PTO RPMs.
could be the sending unit