Bad Fuse on Solenoid? 4.3 Mercruiser

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dmoss8928

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Hey guys I am having a problem with my 2008 Q4 Tahoe not starting. I replaced the starter but where I went wrong was I got the new starter at O Rileys ( I know bad mistake :facepalm:) But the new starter / solenoid only had 2 main post one where the old one had 3 (one for the postive battery lead w/ 90 amp fuse and then one for a purple lead and one for yellow lead) Well on the new solenoid I just put the purple and yellow lead together. The boat started and after 5 seconds made a squealling noise and died. Now the when I turn the key NOTHING happens.

I took the O Rileys starter off and took it bad and ordered a marine grade starter / solenoid for the local boat shop. But that starter on and still NOTHING. I did a little research and found out that there is a little white box that connects to the same post at the battery lead and its suppose to be a 90 amp fuse? Do you guys think I might have blown that fuse and thats why i'm not getting nothing? thanks for the help guys

David
 

Don S

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

Well on the new solenoid I just put the purple and yellow lead together. The boat started and after 5 seconds made a squealling noise and died.

The reason for the noise was when the oil pressure switch for the fuel pump pressurized, it engaged the starter. That's why Merc just didn't put them on the same terminal.

To test the fuse, disconnect the battery ground. Remove the wire from the small terminal of the fuse, reconnect the battery and check for power on the small terminal of the fuse. If no power, replace the fuse. Disconnect the battery before replacing.
 

Bondo

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

Hey guys I am having a problem with my 2008 Q4 Tahoe not starting. I replaced the starter but where I went wrong was I got the new starter at O Rileys ( I know bad mistake :facepalm:) But the new starter / solenoid only had 2 main post one where the old one had 3 (one for the postive battery lead w/ 90 amp fuse and then one for a purple lead and one for yellow lead) Well on the new solenoid I just put the purple and yellow lead together. The boat started and after 5 seconds made a squealling noise and died. Now the when I turn the key NOTHING happens.

I took the O Rileys starter off and took it bad and ordered a marine grade starter / solenoid for the local boat shop. But that starter on and still NOTHING. I did a little research and found out that there is a little white box that connects to the same post at the battery lead and its suppose to be a 90 amp fuse? Do you guys think I might have blown that fuse and thats why i'm not getting nothing? thanks for the help guys

David

Ayuh,... Quite possibly,... remove the fuse, 'n reattach the wire, 'n Try it...
 

Bondo

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

You mean without the fuse?

Ayuh,.... Yes,... Those fuses never even existed til a few years ago....

I call 'em the Lawyer Fuse, brought on by the nanny state to protect yerself, from yerself...

For the last 100 years, the battery was attached directly to the starter...
 

dmoss8928

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

Ayuh,.... Yes,... Those fuses never even existed til a few years ago....

I call 'em the Lawyer Fuse, brought on by the nanny state to protect yerself, from yerself...

For the last 100 years, the battery was attached directly to the starter...

So how is that fuse even working or doing anything in the first place? Sorry I'm for my ignorance...
 

Bondo

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

So how is that fuse even working or doing anything in the first place? Sorry I'm for my ignorance...

Ayuh,... Just like any other fuse,... If there's a Short circuit,... it BLOWS...
 

dmoss8928

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

Ayuh,... Just like any other fuse,... If there's a Short circuit,... it BLOWS...

haha I know that but its on the same post that the battery is hooked to on the solenoid. So your saying just take the fuse off and then try to start the boat?
 

Don S

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

Ayuh,.... Yes,... Those fuses never even existed til a few years ago....

I call 'em the Lawyer Fuse, brought on by the nanny state to protect yerself, from yerself...

For the last 100 years, the battery was attached directly to the starter...

Really ?????????


attachment.php
 

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Bondo

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

haha I know that but its on the same post that the battery is hooked to on the solenoid. So your saying just take the fuse off and then try to start the boat?

Ayuh,... The Fuse is attached to the starter's post,...

The battery Wire is attached to the Fuse....

Remove the fuse, 'n attach the wire Directly to the Starter's post, 'n the motor oughta Start, or atleast spin over....


Really ?????????

Ayuh,... Really....

What year was that picture printed,..??
 

Don S

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

I have no clue, but it's old and from the old micro fisch era. It also shows up in the old wiring diagrams in the manuals that haven't been updated for many years.
 

dmoss8928

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

Ayuh,... The Fuse is attached to the starter's post,...

The battery Wire is attached to the Fuse....

Remove the fuse, 'n attach the wire Directly to the Starter's post, 'n the motor oughta Start, or atleast spin over....



Okay so take the fuse out of the picture all together I can do that and see what happens. Do either of you guys have are know where I can get a drawing of how the leads or suppose to be connected to the solenoid? I want to make sure I put the yellow and purple leads back on the right post...
 

Don S

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

Here you go

Merc fuel pump wiring.jpg
 

Don S

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

I put it together.
 

dmoss8928

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

So if the boat starts without the fuse do I need to replace it or just don't worry about it?
 

Don S

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

That fuse supplies power to the circuit breaker which in turn supplies power to the ignition switch. If you can crank the engine over the fuse is good.
What exactly is your problem?
 

dmoss8928

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

That fuse supplies power to the circuit breaker which in turn supplies power to the ignition switch. If you can crank the engine over the fuse is good.
What exactly is your problem?

I don't get nothing when I turn the key
 

Don S

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

You have me confused now, you first ask this.
So if the boat starts without the fuse do I need to replace it or just don't worry about it?
\

Which to me means the engine starts. Now you say:
I don't get nothing when I turn the key

Which is it ????????

Have you checked the fuse with a meter?
 

dmoss8928

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Re: Bad Fuse on Solenoid? 4.3 Mercruiser

You have me confused now, you first ask this.
\

Which to me means the engine starts. Now you say:


Which is it ????????

Have you checked the fuse with a meter?

I was asking if I should leave the fuse out if it does start Bond told me to take the fuse off and try starting it and no I havn't checked with a meter yet i'm at home so I will get on that once I get off
 
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