I WENT TO SWITCH MY OIL PRESSURE SWICH AN FOR SOME REASON

1990 Chevrolet Truck

Tiny

hmac300

October, 9, 2012 AT 4:42 PM

What that looks like is a knock sensor gong into the water jacket. The plug for oil should be just above the oil filter like an inch or so towards the front an dcomes out the side.

Tiny

matttyw20

October, 9, 2012 AT 5:10 PM

Alright i'll get under there an look again thers wire going into it correct an you can see it with the filter on still rihgt? Any idea what its called like would a manual show it an location thanks

Tiny

hmac300

October, 9, 2012 AT 5:12 PM

If you have aa manual that shows an engine block it should be there. It is la hole that HAS to be drilled inorder to finish drilling the main bearing/cam feed it should be eitehr a 1/2" or 9?16" plug. There should be no wire going to it if there is you will need an adapter for the oil pressure switch.

Tiny

matttyw20

October, 9, 2012 AT 5:54 PM

This hole is right above the oil fitler on the housing itslef it goes all the way through I checked it with a little screw driver could that be it

Tiny

matttyw20

October, 9, 2012 AT 5:55 PM

Then theres this hole its on leftside driverside of block next to a huge hole

Tiny

matttyw20

October, 9, 2012 AT 6:01 PM

I think its the first one thats right above the oil filter let me know thanks

Tiny

matttyw20

October, 9, 2012 AT 6:21 PM

Actually scratch all that this is a hole literally right above oil filter and it had a hex head bolt in it will this work please let me know thanks for ur patience and help

Tiny

hmac300

October, 9, 2012 AT 6:55 PM

Use th one on the block, you shol dhave said yo have an engine oil cooler on this. You culd also try the one on the filter housing but I dont 'know whttype of pressure reading it will give. There should be a plug on the block not a hole. Otherwise try to find a manual that gives a picture of a block

Tiny

matttyw20

October, 9, 2012 AT 9:08 PM

I undid a bolt that was on the block to the left of the oil filter to see but all that caame out was coolant so I tightened it back down

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