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 Pete Your Own Question
Pete, Technician
Category: Boat
Satisfied Customers: 28246
Experience:  17 years automotive training and experience.
Type Your Boat Question Here...
Pete is online now
A new question is answered every 9 seconds

I have Marine Power 5.7 EFI on a 2003 Tige 24V. Engine

Customer Question

I have Marine Power 5.7 EFI on a 2003 Tige 24V.
Engine starts fine cold, will run fine at higher RMPs (over 1400), but will suddenly die when reducing RPMs under 1200, will also die after a few minutes of running normal at idle. After it dies, it can sometimes take a few tries to get it started again.
I already replaced both the LP and HP fuel pumps, fuel/water separator, ignition coil, cap & rotor, wires, plugs, and crank position sensor. Any ideas? Could Fuel injector fouling be a possibility?
Submitted: 1 year ago.
Category: Boat
Customer: replied 1 year ago.
I also changed the IAC valve w/ no change in symptoms. It cold starts fine, but will die after idling for 3-4 minutes. It will then have difficulty starting for a while.
Customer: replied 1 year ago.
I am going to change out the anti-siphon valve next
Expert:  Pete replied 1 year ago.

My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.My info is somewhat limited on your model here but I had seen no one else has responded and would like to see if I can help here.If at any time you feel that I cannot help with this please let me know.

I see no one has posted any help with this here.In some cases this can be due to the info you may be looking for may be difficult to obtain or the correct person that can help may not be online.

If this model has a throttle body on it in some cases the throttle body can become full of carbon at the intake and can cause an issue like this here.If this has not been checked and cleaned this needs done.If this is all o.k. or does not have a throttle body let me know.

If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service.You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.

Thanks Pete

Related Boat Questions