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 Tom Your Own Question
Tom
Tom, ASE Certified Technician
Category: Car
Satisfied Customers: 25955
Experience:  ASE Certified Master Technician
3827149
Type Your Car Question Here...
Tom is online now
A new question is answered every 9 seconds

I have 1986 injected v8 3.5L idells rough..spark plugs..lean

Customer Question

I have 1986 injected v8 3.5L idells rough . Runs OK when hot restart after 15-20 min runs real bad 40 to 50 km max has burnt out 2 new spark plugs , charts show lean fuel mix. Let it cool down & it runs OK your thoughts ? also do you know of a Kam difflock agent- supplier in New Zealand or Aussie Thanks Nico
Submitted: 6 years ago.
Category: Car
Expert:  Tom replied 6 years ago.
Sounds like the injectors are leaking down causing this issue was this checked?
Customer: replied 6 years ago.
would this not be the case all the time ?we did disconect injectors & fuel rail held pressure
Expert:  Tom replied 6 years ago.
You would need to do a fuel injector leak down test to be sure .This definitely sounds like the issue. I would start here next.