View Full Version : erratic oil pressure gauge

12-19-10, 09:53 PM
hello i have a 97 caddy catera with the 3.0 and i have an ongoing issue. it started a last year when my oil gauge would be fine under normal conditions but when it was 30 celcius plus outside and the engine was hot the oil pressure gauge would drop to nothing and the oil light would come on. it only happened a few times. now the pressure does drop but the gauge will rise and fall with rpm it seems. if i accelerate hard i can pin the oil gauge to the max and if it is idling the pressure will drop. the gauge still rises when it is in park and i rev the engine. has anyone heard of this

12-20-10, 09:26 AM
my 98 act wierd when it needs an oil change but, the oil pressure will rise and fall with RPMs.my 98 the gauge stands up when i put some foot in it.
the crankcase breather could need cleaned

12-20-10, 01:26 PM
i will check that. thanks