On 6/2/2016 9:40 AM, Poquito Loco wrote:
On Wed, 1 Jun 2016 08:15:20 -0700 (PDT), wrote:

On Monday, July 11, 2011 at 11:02:13 AM UTC+1, Steve wrote:
Hey all, I have a 2005 3.0l mercruiser sterndrive that is acting wierd. It
will run all day long, runs great, but at the end of the day, it refuses to
idle, it just dies on me. Start it back up and it will run full throttle
just fine, but try to idle and it dies. If I let it sit for a day or two, it
goes back to running normal.
So far I have rebuilt the carb, rebuilt the fuel pump, cleaned the fuel
filter. checked for water in the gas, put another ingnition module in,
replaced the coil. Im out of things to do.
What am I missing?
Thanks
Steve



Anyone notice the date on this original post?

Hope our advice doesn't reach him to late.

On 6/2/2016 1:48 PM, Justan Olphart wrote:
On 6/2/2016 9:40 AM, Poquito Loco wrote:
On Wed, 1 Jun 2016 08:15:20 -0700 (PDT), wrote:

On Monday, July 11, 2011 at 11:02:13 AM UTC+1, Steve wrote:
Hey all, I have a 2005 3.0l mercruiser sterndrive that is acting
wierd. It
will run all day long, runs great, but at the end of the day, it
refuses to
idle, it just dies on me. Start it back up and it will run full
throttle
just fine, but try to idle and it dies. If I let it sit for a day or
two, it
goes back to running normal.
So far I have rebuilt the carb, rebuilt the fuel pump, cleaned the fuel
filter. checked for water in the gas, put another ingnition module in,
replaced the coil. Im out of things to do.
What am I missing?
Thanks
Steve



Anyone notice the date on this original post?

Hope our advice doesn't reach him to late.
make that too. We don't want Donnie to have a spasm.

On Monday, July 11, 2011 at 6:02:13 AM UTC-4, Steve wrote:
Hey all, I have a 2005 3.0l mercruiser sterndrive that is acting wierd. It
will run all day long, runs great, but at the end of the day, it refuses to
idle, it just dies on me. Start it back up and it will run full throttle
just fine, but try to idle and it dies. If I let it sit for a day or two, it
goes back to running normal.
So far I have rebuilt the carb, rebuilt the fuel pump, cleaned the fuel
filter. checked for water in the gas, put another ingnition module in,
replaced the coil. Im out of things to do.
What am I missing?
Thanks
Steve



--- Posted via news://freenews.netfront.net/ - Complaints to ---

I'm seeing the same thing - my 2008 Bayliner 195 with the Merc 3.0 has been in storage for about 10 months. I Winterized it properly. After charing the battery, it runs great, but will not idle below about 2000 rpm. I have no clue....

On Mon, 2 Oct 2017 09:59:55 -0700 (PDT), wrote:

On Monday, July 11, 2011 at 6:02:13 AM UTC-4, Steve wrote:
Hey all, I have a 2005 3.0l mercruiser sterndrive that is acting wierd. It
will run all day long, runs great, but at the end of the day, it refuses to
idle, it just dies on me. Start it back up and it will run full throttle
just fine, but try to idle and it dies. If I let it sit for a day or two, it
goes back to running normal.
So far I have rebuilt the carb, rebuilt the fuel pump, cleaned the fuel
filter. checked for water in the gas, put another ingnition module in,
replaced the coil. Im out of things to do.
What am I missing?
Thanks
Steve



--- Posted via news://freenews.netfront.net/ - Complaints to ---

I'm seeing the same thing - my 2008 Bayliner 195 with the Merc 3.0 has been in storage for about 10 months. I Winterized it properly. After charing the battery, it runs great, but will not idle below about 2000 rpm. I have no clue....
Usually this is the idle passages plugged up in the carb.
Take out the idle screw. Don't lose the spring. Shoot generous amounts
of carb cleaner in the hole. Reassemble and back out the screws about
2-3 turns. Start the motor rev it up and slam your hand over the
intake a few times to create max vacuum and dislodge what the carb
cleaner broke loose. Readjust normally and see if it is not better
(usually 1/12 turns out is a starting point).

If this is EFI, look for an idle air solenoid valve.

Did you ever figure out why your 3.0 Merc wouldn't idle when warm? I have the same problem. Would appreciate any advice. Thanks
Todd

wrote:
Did you ever figure out why your 3.0 Merc wouldn't idle when warm? I have
the same problem. Would appreciate any advice. Thanks
Todd


You probably need a carb cleaning. Low speed idle circuit plugged.

On Sun, 4 Feb 2018 18:37:35 -0000 (UTC), Bill
wrote:

wrote:
Did you ever figure out why your 3.0 Merc wouldn't idle when warm? I have
the same problem. Would appreciate any advice. Thanks
Todd


You probably need a carb cleaning. Low speed idle circuit plugged.

+1
That sounds like a carb problem to me. If it was an outboard I might
have other ideas but this is basically a car that doesn't idle.
If this has idle screws, Back them out 2 or 3 turns, crank it up and
with it turning 2500 RPM or so, slam your hand over the carb throat.
The high vacuum and rich mix *might* suck the crap on through. Then
run them back in and back out to the starting point (usually 1 1/2
turns) and adjust from there.

wrote:
On Sun, 4 Feb 2018 18:37:35 -0000 (UTC), Bill
wrote:

wrote:
Did you ever figure out why your 3.0 Merc wouldn't idle when warm? I have
the same problem. Would appreciate any advice. Thanks
Todd


You probably need a carb cleaning. Low speed idle circuit plugged.

+1
That sounds like a carb problem to me. If it was an outboard I might
have other ideas but this is basically a car that doesn't idle.
If this has idle screws, Back them out 2 or 3 turns, crank it up and
with it turning 2500 RPM or so, slam your hand over the carb throat.
The high vacuum and rich mix *might* suck the crap on through. Then
run them back in and back out to the starting point (usually 1 1/2
turns) and adjust from there.


My T8 Yamaha had same problem. Had a tiny place speck on top of the idle
jet when I took the carb apart. Added a good filter just before the carb.
Jets are so tiny, that the least bit of detritus plugs them.

ALL the jets are clear. I soaked the carb in carb cleaner an then sprayed
out all the jets with the carb cleaner in the can. I dont think its vapor
lock, I can see gas squirt out the accel pump jets.
Keep throwing guesses. cuz I have no clue.
Is it possible that the flapper valve is bouncing around in the exhuast tube
?

Thank you sofar
Steve
wrote in message
...
On Mon, 11 Jul 2011 05:02:13 -0500, "Steve"
wrote:

Hey all, I have a 2005 3.0l mercruiser sterndrive that is acting wierd. It
will run all day long, runs great, but at the end of the day, it refuses
to
idle, it just dies on me. Start it back up and it will run full throttle
just fine, but try to idle and it dies. If I let it sit for a day or two,
it
goes back to running normal.
So far I have rebuilt the carb, rebuilt the fuel pump, cleaned the fuel
filter. checked for water in the gas, put another ingnition module in,
replaced the coil. Im out of things to do.
What am I missing?
Thanks
Steve



--- Posted via news://freenews.netfront.net/ - Complaints to
---


Are you sure you got the idle jet passages cleaned out?



--- Posted via news://freenews.netfront.net/ - Complaints to ---