iac

Anyone replaced a TPS on a mercruiser 6.2l? It appears the IAC is in the way. Is it possible to take the whole IAC assembly off so you can get to the TPS screws? Thanks for any help.

Hey guys, Just blew my 3rd IAC valve in the past year on my Mercruiser 5.0 MPI. Any advice on what can be causing this? My mechanic is scratching his head. Also had to replace my ECM last month. What a way to start the season...

I have a 2005 Mercruiser 5.0 Bravo III. Took boat out for first run and started fine, idled fine, all seemed well until I tried to accelerate past no wake speed. When I would open it up, motor would cut out and seemed to be bogged down, eventually I was able to get up to about 20 mph max. If...

The IAC on my Merc 8.1 burned up and melted the plug on the wiring harness. Is it possible to splice a new plug on or does the entire wiring harness have to be replaced? Where can I find a new plug? Thanks, Tommy

I removed the IAC valve to inspect and found the piston stuck. Pushed on piston and freed up, then I sprayed with cleaner and excersized the piston until it moved freely. I also cleaned IAC the filter element. The initial problem was contamination on the wall of the piston guide. I started...

Hi there I have a 2001 Sea Ray 270 SD with a 7.4L MPI (L29) engine and MEFI 3 ECM. Problem is: When i start her up(cold) she starts very fine but immediately she goes up to about 1800/1900 RPM. When she reaches running temperature, 160 deg she will then drop to about 1000 RPM and then drop...

We spent a fantastic weekend at St Michaels with a MarineMax Getaway. On the ride over on Friday the bay was just a little choppy but after not what I would call “bad”. Half way across the bay the Admiral points to the Smartcraft and says “what’s that”. I look done and there is a “Throttle...

I have to give credit to the mechanics at my marina for solving this gremlin. Bare with me as I try to explain this as I understand it. I developed a stall when docking my 2004 280 Sundancer with Mercruiser 496 BravoIII. The stall was preceeded by several fault alarms via the smartcraft -...

Hey Team: Anyone have any insight regarding issues with the IAC (Idle Air Controller) on a Mercruiser 496? I've just repowered and the "whistling" is telling the mechanic that the IAC is bad. It’s under warranty... but …REALLY?.. a brand new engine with bad IAC? C’MON!!! Is this a common...

I think I have a bad IAC on one of my 4.3 mpi's. Was idling along today when it died and then became hard to start. Runs good above about 1200 rpm. Can anyone direct me to instructions how to find it and replace on this engine; and where's a good place to order these kind of parts? Thanks!

I have a 2005 Sea Ray 200 Select. I was in a lake this weekend pulling tubers and wakeboarders. I noticed that the performance just didn't seem up to par. This morning I got the intermittant 2 audible beeps every minute or so and if I'd go to idle from plane the engine would stall. The...