stock temp guage

[IAM_SO_sLOw]

my stock temp guage goes down and up every time i rev when my car is warmed up. it would stay normal then when i gas it. it would drop down a bit...i was told i had air in the lines so i dried to bleed the air as best i can. i ran my car w/o the radiator cap for about an hr. it helped a bit but the temp guage still drops every time i rev. does anyone know what can be wrong w/ it? would it be the actual cluster or something in the lines?
-thanks

[projectRDM]

Could be the sender or the gauge. Verify the gauge is good by following the FSM's diagnostic procedure.

[IAM_SO_sLOw]

o alright ill do that tonight.. thanks