First time post and need some expertise.
2007 Merc 4.3L Carb
Serial #: 1A078893
95 Hours
Started to use the boat for the 2nd time this year and noticed the temp gauge has no reading. Tested the wire from the sending unit by grounding it and it pegged the gauge. Replaced the temp sending unit but still no change. Let the boat idle for about 5-10 minutes and noticed the port side exhaust manifold was warm, but the starboard side manifold was not increasing in temperature at all. I had the boat professionally winterized and I know for sure the temp gauge was working when it first went in the water because I always let it get up to temp before pulling out of the slip.
Thoughts, suggestions?
2007 Merc 4.3L Carb
Serial #: 1A078893
95 Hours
Started to use the boat for the 2nd time this year and noticed the temp gauge has no reading. Tested the wire from the sending unit by grounding it and it pegged the gauge. Replaced the temp sending unit but still no change. Let the boat idle for about 5-10 minutes and noticed the port side exhaust manifold was warm, but the starboard side manifold was not increasing in temperature at all. I had the boat professionally winterized and I know for sure the temp gauge was working when it first went in the water because I always let it get up to temp before pulling out of the slip.
Thoughts, suggestions?