03' 496 mag H. O. Alarm
#31
Registered
I'm thinking sensor voltage problem
Your IAC is held in by two 8mm screws (item 38) and is on top the manifold (post 38) and just has a hose running from it to the TB
https://www.mercruiserparts.com/bam/.../31823/6708/70
Your IAC is held in by two 8mm screws (item 38) and is on top the manifold (post 38) and just has a hose running from it to the TB
https://www.mercruiserparts.com/bam/.../31823/6708/70
#32
Registered
Thread Starter
I was talking about the muffler which is item #5. I have already removed the IAC and MAP and ordered new parts.
I ordered a new muffler too and I was wondering how to change it out. Basically a foam filter for the IAC located in the throttle body.
I ordered a new muffler too and I was wondering how to change it out. Basically a foam filter for the IAC located in the throttle body.
#33
Registered
Needle nose pliers and pull it out. If its in good shape but dirty, use soap and water
#35
Registered
Was probably the IAC. Try swapping the old back on one at a time to see which one was bad and save the other as a spare.
#36
Banned
and if it was the IAC --- prob did not show in the scan as a fault code anyways. Great point as I had made 1000 times -- one needs to know the parameters to see where they are out of spec and that will pin point your issue a whole lot faster and easier and cheaper rather than thinking oh no fault codes - lets just start changing parts. With that said parts changing and not knowing the parameter specs - no scan tool needed a total waste of money that one can use for the parts changing instead.
#37
Registered
Thread Starter
I had my engine checked with a laptop I believe he had Renda loaded on it. The IAC had the engine in guardian mode and there was an older fault on the MAP sensor. I decided to replace both, my mechanic told me I probably didn't need to replace the MAP because it may have stuck from sitting over the winter or something. But I am a little OCD and I replaced it anyway. My mechanic is an old friend but I didn't know he still kept up his dealership and CEU's. Good for me he is up to date on all updates and all it cost me was a couple of beers.