Question about 2003 Cadillac Deville

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Locating oil sending unit on a 2003 CAD. Deville

Oil sending unit is leaking, want to change it.

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  • Cadillac Master
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If youknow unit is leaking, you should be able to find the leak and thus the unit.

Posted on Jan 24, 2015

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Posted on Jan 02, 2017

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SOURCE: where and how to change the oil sending unit 99 deville northstar? leaking oil

oil sending unit on the 4.6L engine located on the oil filter adapter plate.just remove disconnect oil sending unit electrical connector then you need a oil sending unit socket to remove oil sending unit.buy socket then unscrew remove oil sending unit.besure to use teflon tape or thread sealant on the new oil sending unit.

Posted on Oct 26, 2012

  • 1986 Answers

SOURCE: I keep getting a stop engine low oil pressure

Just wondering if you put in the correct amount of oil and tightened everything back up properly...

Posted on Sep 09, 2009

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1 Answer

My 1997 cadillac deville, northstar w/85, regular oil changes, burns almost 2 quarts of oil every change. It is not leaking.


If your car is losing oil, and if there is no evidence of oil leaking, there is no question that it is either losing it through piston rings or through the head (head gasket or valve guides).
Best thing to do is use a HEAVIER WEIGHT oil than specified for the vehicle when new, regularly monitor your oil level and be sure it never falls below one quart low, and consider having the engine overhauled when you start noticing a performance deficit or hear mechanical noise (such as rod knock) from the engine.

Apr 18, 2014 | 2003 Cadillac Deville

1 Answer

Engine oil leaks


severe oil leaks would be front timing cover crankshaft seal and the rear main seal or leak at oil pump at front timing cover oil leaks can come from damaged oil filter seal or damaged oil pressure sending unit.slow oil leaks oil pan gasket the valve cover gasket leaks you will see and smell smoke from under engine compartment which could be a fire hazard.

Oct 07, 2012 | 2001 Cadillac DeVille

1 Answer

96 deVille. Think the oil pressure sending unit is leaking. How do you remove. Mine is located above the AC pressure lines and I can't reach.


Hello: The oil pressure sending unit is located on the oil filter adapter, which is behind the lower front engine mount. It is best to get a deep oil pressure socket to do the task. Check with Advance Auto, Auto Zone, O'Reilly, or NAPA for the socket.

Jul 25, 2011 | 1996 Cadillac DeVille

1 Answer

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can somebody send me a photo on a 1995cadillac sedan devill were is the oil sending unit located

Feb 21, 2011 | 1995 Cadillac DeVille

1 Answer

Low oil pressure light stays on have changed the oil level sensor now want to change the oil presser unit where can i find it on my 1999 caddy deville its 4.6 engine yes it has good oil that please i need...


Hello, the sending unit is to the right of the oil filter adapter, it is behind the engine mount bracket, it is hard to see and difficult to access. You will need deep oil pressure sending unit socket. It has a electrical connector.

Sep 14, 2010 | 1999 Cadillac DeVille

3 Answers

Im getting low oil pressure reading on my 95 cadillac deville.. what should I be looking to replace?


always start at the least expensive item. ths would be the oil filter. if its a double wall one,switch to a single. if this doesnt work,then test the oil sending unit. alot of the older caddys do this,and as long as you dont hear lifters tapping,i wouldnt sweat it.

Apr 29, 2010 | 1995 Cadillac DeVille

1 Answer

Oil presure sending unit


Cadillac 1994 DeVille

Check, if the oil level is low, top off.
If the oil level was ok then you can replace the oil sending unit.

Mar 24, 2009 | 1994 Cadillac DeVille

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