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low oil pressure stop engine


brisul

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Wel this can be a few things. First it can be a bad oil pressure switch on the oil filter adapter. It can be a bad connection at the oil pressure switch. Or it can in fact be low oil pressure. What kind of oil are you using type and viscosity. Did this happen at idle or coming to a stop? You might try using a high mileage oil, it has more seal conditioner in it and might help your case half seals.

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1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

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Wel this can be a few things. First it can be a bad oil pressure switch on the oil filter adapter. It can be a bad connection at the oil pressure switch. Or it can in fact be low oil pressure. What kind of oil are you using type and viscosity. Did this happen at idle or coming to a stop? You might try using a high mileage oil, it has more seal conditioner in it and might help your case half seals.

[/quote

yes it did happen at idle or nearly stopped beside the message i also saw the oil light flickering

when i need to add oil i use the 10-30 reccomended on the filler cap

but when i have it changed im not sure what they use

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How many miles?

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Are you using synthetic?

Who is changing your oil, the dealer or a Jiffy Lube type chain?

The engine block is split at the center of the crank shaft into two halfs. Between those halfs is a seal. That seal is complex and it seals not only oil from getting OUT of the engine, it seals the oil gallies. I am of the opinion that if the seals that are sealing the oil gallies begins to leak internally that oil pressure can be compromised, especially at idle. What needs to be done is that the engine must be pulled, disassembled at the halfs and a new seal installed.

I would be shocked if this had anything to do with the oil pump, that is my opinion

Now let me tell you my experience. I did a big job to my engine and transmission during the summer. I drained the coolant and oil and it sat for 4 weeks without being started. When I finally started it, I had low pressure at idle it was scary, I was thinking that I would have to junk it. I am now using Rotella 15W40. I think the seals shrank from being dry. My next oil change I am going to try a high mileage 10W30 and see what happens. Good Luck with this and report back how it goes, Mike

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Oil pressure sending unit failures are common. Oil pump failures are not.

Good luck,

Warren

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Are you using synthetic?

Who is changing your oil, the dealer or a Jiffy Lube type chain?

The engine block is split at the center of the crank shaft into two halfs. Between those halfs is a seal. That seal is complex and it seals not only oil from getting OUT of the engine, it seals the oil gallies. I am of the opinion that if the seals that are sealing the oil gallies begins to leak internally that oil pressure can be compromised, especially at idle. What needs to be done is that the engine must be pulled, disassembled at the halfs and a new seal installed.

I would be shocked if this had anything to do with the oil pump, that is my opinion

Now let me tell you my experience. I did a big job to my engine and transmission during the summer. I drained the coolant and oil and it sat for 4 weeks without being started. When I finally started it, I had low pressure at idle it was scary, I was thinking that I would have to junk it. I am now using Rotella 15W40. I think the seals shrank from being dry. My next oil change I am going to try a high mileage 10W30 and see what happens. Good Luck with this and report back how it goes, Mike

Don't hit the panic button when you read this quoted post by me. First as Warren noted, replace the oil pressure switch as I noted in my first reply at the top. I replaced mine and it made no difference, but it is important to replace it first as they do go bad and have been known to cause the symptom you are having

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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