Searayguy185
Member
- Jul 17, 2017
- 87
- Boat Info
- 2004 Sea Ray 185 Sport 4.3 V6,
2008 Toyota Highlander Sport
- Engines
- Mercruiser 4.3 V6, Alpha 1 Generation 2
So i've had this problem for about a year now and it's driving me crazy. First off I have a 2004 Sea Ray 185 with the 4.3 carb engine. When I'm putting around under 3000 RPM'S everything all good. As soon as I start running hard one 3000 RPM'S It will chirp the alarm. Not a constant alarm but either one or two beeps. I disconnected the sensor harness under the thermostat to see if i could narrow the problem down. I used it for 3 months with no problems what so ever, so i knew it was coming from the temp sensor. Logically I replaced the temp sensor with a new one from amazon. Same part number as what the Mercury tech support gave me. Plugged it in and again started to beep. Engine is running a little over 170 at the hottest. I have no idea what to think at this point moving forward. Any thoughts.