Home Boating

2005 Optimax 225 water pressure sensor failure

tomsungtomsung ZimbabwePosts: 1 Greenhorn
hi all I have a 2005 Mercury Optimax has done now 1600 hrs previously haven’t had many issues with it but I am stumped on this one. I have smart craft gauges and an alarm comes up saying water pressure sensor failur. I have replaced the sensor now3 times and every time I change it it works for a few hours then slowly you see the water pressure start dropping on the gauge till it gets to zero but the tell tail is pushing lots of water. 
I am sure it must be a short somewhere as the sensor eventually stops working and it goes into guardian mode and restricts me to 65% throttle so I can still get on the plain but can’t go over 4500rpm
has anyone had a similar problem. I have a brand new gearbox on so water pump is not the issue as problem started before I replaced the gearbox 

Replies

Sign In or Register to comment.
Magazine Cover

GET THE MAGAZINE Subscribe & Save

Digital Now Included!

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

Preview This Month's Issue

Buy Digital Single Issues

Don't miss an issue.
Buy single digital issue for your phone or tablet.

Buy Single Digital Issue on the Florida Sportsman App

Other Magazines

See All Other Magazines

Special Interest Magazines

See All Special Interest Magazines

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Get the top Florida Sportsman stories delivered right to your inbox.

Advertisement

Phone Icon

Get Digital Access.

All Florida Sportsman subscribers now have digital access to their magazine content. This means you have the option to read your magazine on most popular phones and tablets.

To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine.

Get Digital Access

Not a Subscriber?
Subscribe Now