Good morning everyone! We have a 2013 Tahoe Q5 which has the 4.3 MPI ECT engine in it and really have had nothing but problems with it from the start. All the problems revolved around the water pressure reading either too low and then eventually too high and setting a code in Guardian, according...
Over the last few months I have made several posts about the problems we have been having with our newer 2013 4.3 MPI throwing a false “Low Sea Pump Pressure” code and sending the engine into Guardian mode. We have been back and forth to the shop (under warranty) and it seems that Mercruiser...
Last month I posted about my 2013 4.3 MPI losing power and throwing an alarm which was one of the "long-beep" alarms which ended up being the code for Low Water Pressure from the Sea Pump. The motor consequently went into Guardian mode and is why the RPMS were limited to 1200 or so.
I bring...
Good afternoon all, just ran into a problem this morning with our 2013 Tahoe with the Mercruiser 4.3 MPI. We took off from the launch no problem and ran perfect for around 30 minutes or so ranging from WOT to slow running, all without the slightest glitch or hiccup. We pulled up to the beach...
Good morning everyone, I am looking for a new prop for my '12 Tahoe Q5i SF with the 4.3L MPI 220 HP Mercruiser with the Alpha I Gen II outdrive . I am pretty sure the final drive ratio is the 1.62 and the prop from the factory is the 21p aluminum.
With the factory prop, the holeshot is...
Good morning everyone! We just recently picked up our new Q5 and Love the boat so far but we have a few questions. First off let me preface the questions with some information. I have been running boats all my life and this is my third boat to own. All the previous boats were aluminum boats...
Took the boat out this weekend for a full day of fishing in South Louisiana. When we put in, the motor cranked up quick and idled real good. When we went to take off though, it seemed as though the motor didn't quite have the power it normally has. It took it a little longer to come up to top...
I think I read a post a few days ago by rodbolt that said all of the F series yamaha motors sold in the US had a battery isolator built onto the motor for charging house batteries. Am I remembering right or am I mistaken? I have a '05 F115 but don't remember seeing one off hand. I wasn't exactly...
I have a 2005 F115 which is running great. The only problem I have right now is not with the motor itself but with the throttle box (703). The problem I am having is that the "high idle" lever (the small lever you can lift to increase engine speed without being in gear) raises almost all the way...
I do not yet have a service manual for this motor. I am planning on ordering one this fall. I am having a little problem with sluggish throttle response and low top end rpms and want to check the VST filter on this motor. First of all I am new to outboard motors. I think I see the VST on my...
What would make an F115 not turn up all the way on the rpms? A little more than a year ago, the boat would turn up to about 5600 rpms with a given load. Now, with the same load, it will only turn up to about 5200-5300 rpms and subsequently I have lost a little top end. I stored the boat over...
I have a 2005 F115 on the back of a 18'3" aluminum bass boat which has a high performance hull and pad underneath it. The motor is turning a 13x19 SS prop. I was looking through the internet and found a slip calculator for props so I plugged in my engine rpms per the in dash tach (5850), gear...
I am a firm believer in Sea Foam as a cleaning and de-carbing agent. I have used it in everything I own to get it running right again when it seems to have lost a little something. I use it pretty often in my truck and wife's car and just recently used it in my son's four wheeler when it...
I have an 18'6" Xpress aluminum bass boat with an f115 on the back with a PowerTech 13x19 prop. I have installed Mobster Tabs to fix a porpoising problem I had (which worked beautifully) and was just plinking around on the net looking at boat topics and came across a prop pitch calculator. It is...
In your own opinion, which type of trolling motor is better, the remote steering or the hand control models. I am looking at getting a bigger trolling motor for my boat since I think the 44# thrust motorguide I have is just a little to small for my 18'6" aluminum bass boat. I am looking into a...
