2004 5.0 mpi

Packers4ever

Packers4ever

Petty Officer 2nd Class
Joined
Jun 9, 2005
Messages
163
Hey guys,

Been a while since I posted, I sold my previous 1997 Celebrity 180 and just bought a 2004 Crownline 202BR, loving the boat but the alarm is now going off twice every 3 mins or so...and will stay on steady at or close to WOT.

I geuss my first question is - any ideas on what it could be?...everything I read is pointing to a bad IAC...next question is what code reader do I get and where can I buy one? I live near Toronto, Canada.

Thanks in advance for any help you give me!!
 
K

KirkDarch

Cadet
Joined
Aug 10, 2011
Messages
17
Re: 2004 5.0 mpi

I have the same engine in my Baja and last year had the same problem, the easiest way to tell if it is the IAC is back the gas completely off and if it has no problems idling at a very low RPM it is probably not the IAC. If the boat stalls at low RPM then it probably is your IAC. One good thing about the IAC is it is relatively inexpensive and it is easy to change on your own in about 10-15 min or less. When I went to look for a new IAC I did notice at least here in Ottawa there were widely different prices for them depending on the marina so spend an extra 10-15 min phoning around and save yourself some coin or if you have the time order it online.
 
Packers4ever

Packers4ever

Petty Officer 2nd Class
Joined
Jun 9, 2005
Messages
163
Re: 2004 5.0 mpi

Thanks Kirk, it actually stalled once as I was coming off plane and has been fine since...hopefully someone can help me find a code reader that would let me know whats wrong for sure.
 
r.j.dawg

r.j.dawg

Ensign
Joined
May 30, 2011
Messages
993
Re: 2004 5.0 mpi

The cheapest I have seen them is from Rinda. But they are still pricey. I decided it was cheaper for me to pay the marina mechanic to hook up his reader for me.
 
Packers4ever

Packers4ever

Petty Officer 2nd Class
Joined
Jun 9, 2005
Messages
163
Re: 2004 5.0 mpi

The scan tool with Part #94008 is $50 would that work for my engine?
 
r.j.dawg

r.j.dawg

Ensign
Joined
May 30, 2011
Messages
993
Re: 2004 5.0 mpi

Do you know if your engine has MerCruiser PCM-555 or ECM-555? If so, no it won't work.
 
r.j.dawg

r.j.dawg

Ensign
Joined
May 30, 2011
Messages
993
Re: 2004 5.0 mpi

There should be a sticker or two on the ECM itself. Should be a Mercruiser part number and the ECM type.
 
Packers4ever

Packers4ever

Petty Officer 2nd Class
Joined
Jun 9, 2005
Messages
163
Re: 2004 5.0 mpi

Ok, thanks guys...so the cheapest scanner I can get is $400?
 
r.j.dawg

r.j.dawg

Ensign
Joined
May 30, 2011
Messages
993
Re: 2004 5.0 mpi

I checked a couple of marinas around here and they were well above the $400 price from Rinda.
 
Packers4ever

Packers4ever

Petty Officer 2nd Class
Joined
Jun 9, 2005
Messages
163
Re: 2004 5.0 mpi

Ouch, you can get an OBD scanner for less than $40 now...thanks for the list Don...looks like there are several causes for the 2beeps per minute alarm...geuss I'll have to pay a marina to scan it for me.
 
HarryHarley

HarryHarley

Cadet
Joined
Jun 9, 2013
Messages
10
Re: 2004 5.0 mpi

Packers4ever, You said you had a Celebrity 180 and sold it ?..... I have the same boat but 1 year earlier..... never knew of anyone else who had one. Happened to find this forum last week. I'm a little late to the party - LOL.
I'm the original owner of mine. Would you happen to have a couple of picture you may have taken of the 180? Would like to see it. By the way, how much did ya sell it for? Thanks
Here's mine:
 

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Packers4ever

Packers4ever

Petty Officer 2nd Class
Joined
Jun 9, 2005
Messages
163
Re: 2004 5.0 mpi

Hey guys, I had my 5.0 MPI scanned (Serial# OM681848) and it turns out the IAC needs to be replaced (Marina tried to clean it first and the alarm went away for a short time but is back on now)...I have been told its fairly easy to do yourself, does anyone know exactly where it is and how its done?

HappyHarley, I dont want my question to get covered up by us talking back and forth...I'll reply to you asap.

Thanks.
 
Packers4ever

Packers4ever

Petty Officer 2nd Class
Joined
Jun 9, 2005
Messages
163
Re: 2004 5.0 mpi

Thanks RJ, manual 17 says 1993-97 motors, is that still the right one? Looks like Manual 31 is for 2001 and up 5.0, 5.7 and 6.2 engines?
 
r.j.dawg

r.j.dawg

Ensign
Joined
May 30, 2011
Messages
993
Re: 2004 5.0 mpi

Yes, 31 would be the one. For some reason when I am at work using IE I can't see the whole page when I go to BoatInfo.
 
Packers4ever

Packers4ever

Petty Officer 2nd Class
Joined
Jun 9, 2005
Messages
163
Re: 2004 5.0 mpi

Thanks rj...I'll give it try tonight, 2 marinas want $140 for the IAC...not to bad I guess.
 
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