Volvo Penta 7.4 GI

[Sunnyide admin]

Hello community, i’ve been having power issues with this engine. We already did
spark plugs, rotor, fuel filter, injectors and now we are waiting for the distributor to try a new one. Its on a 2000 Cobalt and I’m guessing it’s the only engine it have had. Any other guessing about what it could be?
thank you so much guys

 

[alldodge]

Welcome

Is this a new to you boat or is this something that just started?

The first things is check fuel pressure of the high and low pressure pumps
HP pump should be 39 +/- 3 psi
LP pump depends on which GI version, EF 8 +/- 4 psi, HU to WT 5 +/- 3 psi