2003 volvo 4.3 twin engines fuel issue/ or pump

alan ber

Petty Officer 2nd Class
Joined
Jun 29, 2008
Messages
143
New purchase and limited on knowledge on this regal 28 commodore .
Twin Volvo engines
Prior too purchase ran poorly, could not get on plane
Tested days later n and it ran great ?
Same fuel, that is was sitting 9 months
Purchased Boat
Boat can not get on plane ?
both engines fire up
changed fuel filters, no water, clean
In neutral both rev up well over 3500 rpms
Under power max rpm is 2000 on both,. full throttle, Cant get out of its own way
Fuel changed good . Changed
Cleaned over fill drain hose making sure no vapor lock
hoses good,
One 105 fuel tank , 2 hoses going too engines
Both engines run the same . LIKE CRAP
Could both fuel pumps be shot?
Is there a high pressure fuel senor that controls both engines ??
Vapor syphon on each hose ??

Any ideas
thanks
 

alldodge

Moderator
Staff member
Joined
Mar 8, 2009
Messages
42,535
Not a Volvo dude but what model are the engines?
Are they EFI or carb?
 
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