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jpimer
PostPosted: Tue Jun 25, 2013 9:11 pm 
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Guppy

Joined: Tue Jun 25, 2013 9:04 pm
Posts: 9
Location: Northen Delaware
I have a 1996 Sundowner 205 with the Volvo Penta 5.0fi inboard. Over the last two weeks I've been having a throttle/engine issue. After the boat has been running for a little bit and I'm up beyond 3/4 throttle, the motor and RPMs drop from 4,000 down to about 2,500.

The motor doesn't sound like it's struggling or starving but I can't get the power back. If I move the throttle between about half and WOT, the motor doesn't increase or decrease at all. No change in sound like its struggling.

After a few minutes, the motor will come back full power but the issue will continue.

What was strange was this weekend it happened right after we hit a wake at a bad angle and gave the boat a small jolt.

I've replaced the fuel filter. The tank was only at 1/4 so I topped it off with fuel and added StaBil Marine Ethanol Treatment. I thought I had the issue licked until we hit that wake and it started.

What else could it be? Thinking possibly something electric?

No issues shifting in and out of gear or any throttle response when the issue is not occurring. Trying to figure it out so I don't have to drop it at a shop for 2 weeks and spend $300 just for them to not find it.

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NiagaraChillin
PostPosted: Tue Jun 25, 2013 9:35 pm 
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Location: Lower Niagara/Lake Ontario USA
Welcome! Always glad to have another Sundowner on the forum. Is your 5.0 carb'd or injected?

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ric
PostPosted: Tue Jun 25, 2013 10:22 pm 
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Location: Austin, TX
Sounds like a fuel pump is starting to die. It is 17 years old.....

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jpimer
PostPosted: Tue Jun 25, 2013 10:31 pm 
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Guppy

Joined: Tue Jun 25, 2013 9:04 pm
Posts: 9
Location: Northen Delaware
Engine is fuel injected.

Is the fuel pump easy enough to change myself? I'm new to boat ownership but I'm decent around car mechanic tasks.

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'96 Sundowner 205 DLX
5.0FI Volvo SX Cobra
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NiagaraChillin
PostPosted: Wed Jun 26, 2013 7:12 am 
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Joined: Sun Jul 08, 2012 6:58 pm
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Location: Lower Niagara/Lake Ontario USA
jpimer wrote:
If I move the throttle between about half and WOT, the motor doesn't increase or decrease at all. No change in sound like its struggling.

Bad throttle linkage? If your moving the throttle, and there is NO CHANGE in rpms or sound....

Oh also, ya gotta post pics of your boat...

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1996 205 Sundowner DLX
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