4.3 ran great, new radio now no start

samm835

Chief Petty Officer
Joined
Dec 12, 2006
Messages
575
boat ran great then we installed a new radio and now wont start it does turn over but seems like its not getting fuel or cuts off. Acts like something is killing it. Turns ovee acts like it wants to run. Any help would be appreciated.
 

dubs283

Vice Admiral
Joined
Jul 27, 2005
Messages
5,332
Re: 4.3 ran great, new radio now no start

if equipped, is the saftey lanyard in place??

where did you get power for the radio from??

did you disconnect any wires under the dash during the install??
 

Fishermark

Vice Admiral
Joined
Oct 19, 2003
Messages
5,617
Re: 4.3 ran great, new radio now no start

Need some more info rather than just 4.3 liter. The obvious answer is it is related to your radio installation. Where did you get the power for the radio? What type of ignition system do you have? Sounds like it may be getting power when you have the starter engaged, but not when you release the starter. First step would be to check for voltage at the coil with the ignition switch on.
 

samm835

Chief Petty Officer
Joined
Dec 12, 2006
Messages
575
Re: 4.3 ran great, new radio now no start

It was professionally installed, I totally forgot about safer lanyard. It might not be on all the way. I am back at his shop, because they installed tge radio off the ignition....I wanted it straight to battery. There was a wire on backof iignition (yellow) that isnt going to anything. If it touches metal I can hear a humming coming from a cylinder labeled saej1171, but a plastic cap was placed on this wire. Anyone know what this wire does?
 

dubs283

Vice Admiral
Joined
Jul 27, 2005
Messages
5,332
Re: 4.3 ran great, new radio now no start

It was professionally installed

was it a stereo installer or boat mechanic??

does the yellow wire have a red tracer on it??

SAE J1171 is a marine rating sticker found on starter motors
 

samm835

Chief Petty Officer
Joined
Dec 12, 2006
Messages
575
Re: 4.3 ran great, new radio now no start

Well the wire I thought was yellow is actually pink comming from ignition...with yellow wire added. I had a stereo pro do it. Im about to head back to house with boat, I think I'm the idiot and had the safety lanyard off....Ugh hate that thing.
 
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