Offshoreonly.com - what should the sea water pump pressure sensor read on a 496

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larry da outlaw

06-25-2013 06:09 AM

what should the sea water pump pressure sensor read on a 496

I have a conflicting reading with my sea water pump pessure sensor readings .I have twin 2004 496 (pcm555) one eng says 3psi and the other says 42 psi at idle. which is correct?

ballz2thewall

06-25-2013 06:19 AM

3lbs is correct the one that says 42 is bad and needs to be changed

Sydwayz

06-25-2013 09:35 AM

Agree with above post. I just replaced one due to exact same issue. The high one is bad.

larry da outlaw

06-26-2013 05:51 AM

thanks I just replaced the sensor...all is well

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