'03 4.3L low idle & stalls out at Pwr

[Chap183SS]

have a brand new 4.3L alpha (carburated)that is stalling out when you retard the throttle and when you accelerate to fast. I have a bad tach (known problem from dealer) but it is idling low most of the time. I think it could be bad gass or a clogged water seperating filter. Any help would be great.

 

[karayj]

Re: '03 4.3L low idle & stalls out at Pwr

i had someone tell me that there tach was shorting out causing the problem you have replace the tach via the dealer isn't it under warranty?????????

 

[airman]

Re: '03 4.3L low idle & stalls out at Pwr

Brand new? Change the fuel filter and give it some good gas. If that doesn't fix it then it isn't your problem. Take it to the dealer, that's why you spent all that $ on a new boat!

 

[Chap183SS]

Re: '03 4.3L low idle & stalls out at Pwr

It was the TACH!!! The Merc Tech checked it out and said the tach was shorting and causing ignition problems. It is under warranty. I just wanted to see if it was something simple so I didn't have to wait a week to get the boat back from the shop. The tach finally made it to the shop, so I should get it back by mid week.