4.3 v6 hesitates when full throttle applied

BGutah

Recruit
Joined
Mar 28, 2008
Messages
2
Hey all you boaters out ther;)...when I am pulling up skiers they hate me!:mad: because when I "hit it" the boat lunges forward..then hesitation and then goes....I think it may be the accelerator pump...I replaced the filter, no change so how tough is it to rebuild the carb on this engine? Any advice?...thanks:redface: and Hit It!
 

rndn

Commander
Joined
May 20, 2007
Messages
2,323
Re: 4.3 v6 hesitates when full throttle applied

It's not a big deal if you're mechanically inclined, if not leave it to the pros.
Welcome to the forum!!:)
 

imported_TheMan

Petty Officer 1st Class
Joined
Oct 19, 2006
Messages
224
Re: 4.3 v6 hesitates when full throttle applied

It's as simple as buying a kit and CAREFULLY following the directions.
Did you replace all your filters? (the pump, carb, and water/fuel if you have it)

My mechanical fuel pump filter was chocked full of ... stuff....
 

superpop

Master Chief Petty Officer
Joined
Mar 5, 2006
Messages
869
Re: 4.3 v6 hesitates when full throttle applied

This may or may not be a carb issue. On my 1996 VP 4.3L I had a bad module in the distributor that caused this problem. The problem was not the carb but the advance was way off. It caused hesitation and backfiring pops on hard acceleration.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,099
Re: 4.3 v6 hesitates when full throttle applied

Ayuh,..... Welcome Aboard BGutah,.......

It'll make it alittle easier to Help you if you mentioned just What Carb We're working on,..??....

As rndn says.... If you're a Wrench turnin' kinda Guy,.... It's a reasonably Easy Job,....
Equipment is the Big thing with rebuilding Carbs,....
Compressed Air is Mandatory,.... A Carb Soaktank it also a Big plus......
 

bsh21wash

Petty Officer 1st Class
Joined
Mar 27, 2006
Messages
263
Re: 4.3 v6 hesitates when full throttle applied

I had this same problem on my 4.3 Had the carb rebuilt and the problem was gone.
 

180shabah

Rear Admiral
Joined
Mar 26, 2005
Messages
4,995
Re: 4.3 v6 hesitates when full throttle applied

AS stated above we need to knoe what carb you have.
 

Liquid_force

Petty Officer 1st Class
Joined
May 7, 2003
Messages
318
Re: 4.3 v6 hesitates when full throttle applied

mech or elect. ignition?

I have a similar condition when i don't get my points/condenser replaced at the correct interval.
I can go two seasons without much trouble. If it goes the 3rd I'll get the miss early in the season. Once I get them changed, problem's gone.
 

ccmarsh

Seaman
Joined
Mar 25, 2008
Messages
72
Re: 4.3 v6 hesitates when full throttle applied

If I were you I would rule out everything from the fuel pump to the carb before rebuilding it and even then it might not need rebuilt it might just be that the carb settings need some fine tuning. After all that if you still want to rebuild it's a lot simpler then people might tell you. First find out what carb you have. You can do this buy locating the list number on the carb. Then, buy the original manual was made when the carb was made(e-bay). Also, you need the correct rebuild kit. My carb is a two barrel but they also make a four barrel just like mine so when I ordered my kit I got the four barrel one. It's fine, just more confusing because there are extra gaskets and parts in it that you won't need. Next read the manual alot if you have to. familiarize yourself with the parts and when you believe your ready start the rebuild. Take your time, don't get distracted, and once you start it, finish it. Do not come back to it later. Have fun.
 
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