2007 FX35 engine flutter

L

Lavender

Member
Hello... Just bought a used car and within 30 days of ownership - appears to need repair! When I start the engine of my 2007 Infiniti FX35, the engine flutters and continues to flutter and has reduced power as I drive - the "service engine soon" light comes on and off. Also......There is also blueish/white smoke bellowing out of the exhaust when I crank the car. Please help me with possible causes.....
 
How many miles on it, & Does the smoke go away after it's warmed up?
 
I wouldnt worry about the smoke then. Blue is oil, & some have it at startup. Given your miles, that's not completely uncommon. Could be a number of things, from worn valve seals, piston rings or valve guides. First thing I would do is to check the oil level, & see if you're dropping after some time. If you are burning oil, that could be a symptom of a loss in power. You may need to clean out the throttle body. I would do that for sure. You can also reset the ecu.
You should also still be under warranty, so get this stuff resolved before it's too late
 
Wish I was under warantee but it isnt and bought the car "as is". What is an ecu and how do I reset it? Also, do you think it might be the comshaft position sensor? Thanks for the help!
 
Warranty should still apply from Infiniti.

Every new Infiniti comes with the peace of mind of Standard Infiniti Limited Warranties:

  • 4-year/60,000-mile Basic coverage
  • 5-year/50,000-mile Emission Control coverage
  • 6-year/70,000-mile Powertrain coverage
  • 7-year/unlimited-mileage Corrosion coverage
  • 10-year/unlimited-mileage Seat Belt Warranty
  • 4-year/60,000-mile Genuine Infiniti Accessories Basic coverage (when purchased at time of vehicle sale)
  • Up to 7-year/100,000-mile Infiniti Extended Protection Plan (optional)
  • 2-year/24,000-mile Federal Emission Performance Warranty
  • 4-year/60,000-mile Federal Emission Defect Warranty
  • 8-year/80,000-mile Federal Emission Long Term Defect Warranty
  • 4-year/60,000-mile California Emission Performance and Defect Warranties
  • 7-year/70,000-mile California Emission Long Term Defect Warranty
 
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