Question about 2008 Infiniti G37

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Transmission problems G37

My 2008 Infiniti G37 has been loosing power and making strange noises ever since i took it off the dealer lott. My vehicle had a strange, loud whistling noise around 3400 rpms, and a loud high pitch noise at 6300 rpms. Infiniti says they dont know what the problem is, and i should leave it alone. My transmission has now blown, and Infiniti will not replace it under warranty. I have been to the service shop 6 times before my transmission blew, and have had nothing but problems. If anyone else has been having transmission issues, please email me at Sohailhasnani@yahoo.com

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  • Jay Stewart
    Jay Stewart May 11, 2010

    Did you buy the vehicle new?  And who told you they didn't know what's wrong and to leave it alone? the dealer? As a former Infiniti service advisor, i can tell you that each time you took the vehicle to the dealer for this issue it should have been documented. When they write a work order on the vehicle it is recorded in the service database. What did they do each time you took it in? That vehicle has a 6 year 70,000 mile powertrain warranty. I would like to know the reason they gave you for not being able to fix it to begin with and now replace the tranny. Email me at pingman37 if you would and I will try to help you further. 

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5 Suggested Answers

pingman37
  • 58 Answers

SOURCE: G37 Infiniti Automatic Door Locks..

I am relatively certain this has to be done at the dealer with the handheld diagnostic computer. They will have to access the Body Control Module and reset it. There are many options in the BCM menu that can be set. They should be able to do that rather quickly right on the service drive, and they shouldn't charge you since the vehicle is under warranty. If they don't then that is pretty ****. I worked for an Infiniti dealer for many years in the midwest and we gladly did things like that all the time for free just to take care of our customers.

Posted on May 05, 2009

djquinnspin
  • 67 Answers

SOURCE: pssngr window Infiniti G37 Coupe not raising after dr is closed

sound like you have a broken wire to wind motor that making intermintant contact ck where wires come into door assm

Posted on Nov 25, 2009

ZJLimited
  • 17970 Answers

SOURCE: Infiniti G35 - 2006 Sedan

Smoke on start? Could be a valve problem where all your oil is in the bottom at start? Belts are squeaking too? Maybe a tensioner went bad?

Saw this service bulletin---

TAPPING / KNOCKING NOISE FROM ENGINE AT COLD START
This bulletin amends ITB02-049. This version amends the Applied Vehicles.
Please discard all paper copies of the earlier version.
APPLIED VEHICLE: 2002 - 2004 Q45 (F50)
2003 - 2004 M45 (Y34)
2003 - 2004 FX45 (S50) with V8 engine.
IF YOU CONFIRM:
A tapping or knocking noise (similar to a piston or valvetrain noise) when starting a cold engine,
NOTE: The engine is considered “cold” when it has been OFF (not running) for several hours.
ACTIONS:
1. Dislodge and remove any carbon deposits that may have caused the noise and confirm that carbon
deposits were the cause of the noise.
• While the noise is occurring, quickly rev the engine several times to approximately 4,000 RPM. Then
release the accelerator quickly, as soon as the engine reaches 4,000 RPM.
• The noise should disappear immediately if carbon deposits are the cause.
NOTE:
• If the customer reported a noise that exactly matches the symptoms listed above, but you cannot
duplicate it, the cause may still be carbon deposits. Go to step 2.
• If the noise does not stop after revving the engine, or you observe any other noise that doesn’t match
one described above, go back to ASIST for further diagnostic and repair information.
2. To prevent this incident from occurring again, add a bottle of Nissan In-Tank Fuel System Cleaner
P/N 999MP-FSC00P to a full tank of fuel (in the vehicle’s fuel tank) according to the instructions on the
label.
• This product is proven to reduce carbon deposits on pistons and combustion chambers, as well as
cleaning other components of the fuel system.

Hope helps.

Posted on Sep 08, 2010

  • 1 Answer

SOURCE: Infiniti G37 2010 sedan. The analog clock doesn't

I had the same problem with mine. Just got off the phone with the dealership. Really easy fix. Your car is still in transport mode. Put your blinker and windshield wiper arms all the way to the down positions. There may also be a white fuse down by the kick panel that isn't pushed in all the way. Push that in as well. Then start the car. Your clock will then work (at least mine does now).

Posted on Feb 14, 2011

  • 228 Answers

SOURCE: My Infiniti g37 jolts foward when I'm breaking for

I am not sure I know what you mean. Are you talking about when you are braking the pedal pulsates?

Posted on Jul 13, 2011

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Smoke on start? Could be a valve problem where all your oil is in the bottom at start? Belts are squeaking too? Maybe a tensioner went bad?

Saw this service bulletin---

TAPPING / KNOCKING NOISE FROM ENGINE AT COLD START
This bulletin amends ITB02-049. This version amends the Applied Vehicles.
Please discard all paper copies of the earlier version.
APPLIED VEHICLE: 2002 - 2004 Q45 (F50)
2003 - 2004 M45 (Y34)
2003 - 2004 FX45 (S50) with V8 engine.
IF YOU CONFIRM:
A tapping or knocking noise (similar to a piston or valvetrain noise) when starting a cold engine,
NOTE: The engine is considered “cold” when it has been OFF (not running) for several hours.
ACTIONS:
1. Dislodge and remove any carbon deposits that may have caused the noise and confirm that carbon
deposits were the cause of the noise.
• While the noise is occurring, quickly rev the engine several times to approximately 4,000 RPM. Then
release the accelerator quickly, as soon as the engine reaches 4,000 RPM.
• The noise should disappear immediately if carbon deposits are the cause.
NOTE:
• If the customer reported a noise that exactly matches the symptoms listed above, but you cannot
duplicate it, the cause may still be carbon deposits. Go to step 2.
• If the noise does not stop after revving the engine, or you observe any other noise that doesn’t match
one described above, go back to ASIST for further diagnostic and repair information.
2. To prevent this incident from occurring again, add a bottle of Nissan In-Tank Fuel System Cleaner
P/N 999MP-FSC00P to a full tank of fuel (in the vehicle’s fuel tank) according to the instructions on the
label.
• This product is proven to reduce carbon deposits on pistons and combustion chambers, as well as
cleaning other components of the fuel system.

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