|
Sounds like the gauge is working fine. It is telling you how much oil pressure you have. When you rev the engine, you have pressure, when you don't, you have none.
It could be the oil pump, but it is just as likely that it has bad bearing(s) and will need a rebuild. Something you could try is to run some cleaner through the engine (Something like SeaFoam). read the direction, but basically you pour it in the engine, let the engine run for 1/2 hour, drain the oil, change the filter and add fresh oil. This may clean things up and help the lube issue, if not you may need a rebuild.
Did it come with a warranty? If not you still may want to try and talk to the place you got it from to see if they will help with the cost of repairs.
|