No oil pressure after oil pump installed

Terry Rogers

Asked by Jun 20, 2016 at 03:07 AM about the 1999 Chevrolet Camaro

Question type: Maintenance & Repair

Can main bearings slipped
and cause no oil pressure at

2 Answers


No, that would go the other way, more pressure due to closed oil galley holes. You would know it if you had spin a bearing. Did you prime the pump with something like STP or Power Punch before you put it on? If not that is most likely your problem.


I agree with tennisshoes on his method, oil pump needs to be primed, but if the engine is already installed, you can do it when it is installed which is how I do it, by rigging up a rod on a drill to the oil pump shaft and spinning it until oil has circulates threw the engine.

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