Thread: Low oil pressure warning

checking oil delivery is easy, crack the oil sender off and wind it on the starter oil will come out.

if you're not getting oil out of there on the starter you need to check on a few things.


first, did you put oil in it (I'm not being a smart ass, Im out of fingers for counting the number of times I've seen it)

second did you prime the pump before you tried to start it?

did you prefil the oil filter as much as you could before you fitted it?

if you didnt do any of that you can get away with back filling the oil delivery side through the pressure switch hole

you can also cheat it a bit by using a brake bleeder on the oil switch to pull the oil up through the pump.

Originally Posted by Mustlust

Just started up the engine after my 3.5 to 3.9 swap.

There's a difference in the front cover gasket between the 3.5 & 3.9.
If you fit the wrong one, there's an oil passage that doesn't seal properly & will suck air between the front cover & engine block. Don't ask me how I know this...

Thanks Dave,
I have tried to top up the oil via the switch hole but still won't prime. May need to draw oil up through the hole some how.... Don't have any tools for this, so will have to ponder on this puzzlement.