cel- oil pressure

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   The CEL is coming on in my 97 gt-40.   I knew it was either the temp switch or the pressure switch.   I unhooked the oil pressure sender(the bigger one, with the blue wire),    The CEL didn't come back on and the oil pressure gauge stopped working.   

I should have disconnected the oil pressure switch though.  Why did the CEL stop lighting when I unhooked the wrong sensor?   

My thoughts,
1.   I need a new switch
2.   could the problem stem from running shell rotella T as opposed to straight 40w(lower oil pressures)
3.  oil level might be a bit high

Did I read somewhere there is a lower pressure switch that may better suit my situation since Im running multi viscosity oil now?  

thanks
Shawn

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harriss28 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: July-24-2010 Location: Titusville PA Status: Offline Points: 128	Post Options Post Reply Quote harriss28 Report Post Thanks(0) Quote Reply Topic: cel- oil pressure Posted: July-26-2017 at 7:00pm
	The CEL is coming on in my 97 gt-40. I knew it was either the temp switch or the pressure switch. I unhooked the oil pressure sender(the bigger one, with the blue wire), The CEL didn't come back on and the oil pressure gauge stopped working. I should have disconnected the oil pressure switch though. Why did the CEL stop lighting when I unhooked the wrong sensor? My thoughts, 1. I need a new switch 2. could the problem stem from running shell rotella T as opposed to straight 40w(lower oil pressures) 3. oil level might be a bit high Did I read somewhere there is a lower pressure switch that may better suit my situation since Im running multi viscosity oil now? thanks Shawn

8122pbrainard Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045	Post Options Post Reply Quote 8122pbrainard Report Post Thanks(0) Quote Reply Posted: July-26-2017 at 8:03pm
	I suggest installing a pressure gauge to get the true oil pressure.
	54 Atom 77 Tique 64 X55 Dunphy Keep it original, Pete <

fanofccfan Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum Member Joined: December-13-2009 Location: North Bend NE Status: Offline Points: 1774	Post Options Post Reply Quote fanofccfan Report Post Thanks(0) Quote Reply Posted: July-27-2017 at 9:23am
	I doubt it's the oil type. Many have run the rotella including myself without issue.
	2004 196 LE Ski 1969 Marauder 19 1978 Ski

lewy2001 Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: March-19-2008 Location: NSW Australia Status: Offline Points: 2234	Post Options Post Reply Quote lewy2001 Report Post Thanks(0) Quote Reply Posted: July-27-2017 at 11:40pm
	The oil pressure gauge sender and the CEL switch are 2 separate entities on the GT40. It is actually has a different acronym SLOW Speed Limiting Operational Warning
	If you're going through hell, keep going 89 Ski <a href="http://www.correctcraftfan.com/diaries/details.asp?ID=5685" ta

cel- oil pressure

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