Negative oil pressure??

92 318 Dakota 90K miles Just started noticing this on cold mornings. When I first crank it up the oil pressure guage dives below zero, as far as it can go. It stays
there 4 or 5 seconds then begins climbing towards normal.
No audiable bearing knocks or rattles.
Any suggestions appreciated.
Thanks
So many Garys and Clydes ..so.. "Leroy"
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wrote:

For others who may encounter this.... It was a stopped up pickup tube in the bottom pan.
"Leroy"
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