How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Jason Your Own Question
Jason
Jason, Marine Mechanic
Category: Boat
Satisfied Customers: 15672
Experience:  Degree in Marine Technology. Gas and diesel marine mechanic.
44667847
Type Your Boat Question Here...
Jason is online now
A new question is answered every 9 seconds

2005 5.7 GIL-E (f) port engine starts ok, after awhile

Customer Question

2005 5.7 GIL-E (f) port engine starts ok , after awhile starts to run rough the rpm drops to 750 then surges to 2000 fuel smell and some smoke at exhaust
Submitted: 12 months ago.
Category: Boat
Expert:  Jason replied 12 months ago.

Hi Jim, my name is Jason.

I read what you wrote. Is there a history to this problem?

Customer: replied 12 months ago.
it happened one time last year
Expert:  Jason replied 12 months ago.

Is this an intermittent issue or does it happen every time?

Customer: replied 12 months ago.
the engine sounded like it was trying to suck in air
Expert:  Jason replied 12 months ago.

Is this an intermittent issue or does it happen every time?

Customer: replied 12 months ago.
ex2
Expert:  Jason replied 12 months ago.

I'm not going to call until I know more about what's going on.

Expert:  Jason replied 12 months ago.

Hi Rick, my name is Jason.

It's ultimately the pressure control valve inside of the oil pump that controls engine oil pressure. What I would do In the shop is disconnect the oil pressure sending unit and plumb in a mechanical gauge, run the boat, and see if the mechanical gauge does the same thing or not. If it does not, and if the mechanical gauge reads fairly steady, then the engine has a bad sending unit on it. If the oil pressure reads the same/does the same thing on the mechanical gauge then the engine would need a new oil pump. Does that make sense to you?

Customer: replied 12 months ago.
how would that be related to fuel
Expert:  Jason replied 12 months ago.

I don't know what happened but that reply was not meant for you. I will opt out.

Customer: replied 12 months ago.
ok will someone else answer
the question
Customer: replied 12 months ago.

ok new phone # ************

Related Boat Questions