My max has 149K miles on it and I'm the original owner. While in Park, I hit the gas, I don't feel or should I say hear the car as smooth as it used to be. Tranny problem? Any suggestion?
Sorry for not being able to clarify this any better.

 

Any MIL codes? How's the rear motor mount?

 

mil codes? I don't know anything about motor mont? Will you please explain?

 

Is your service engine light on? If so, it could be pointing to a malfunction which would affect driveability.

As far as the motor mount is concerned:

http://forums.maxima.org/showthread....ht=Motor+mount

http://forums.maxima.org/showthread....ht=Motor+mount

 

just a quick question, how does bad motor mount effect motor,tranny and how can I tell that they need to be changed out?

thanks

 

if anything, it'd be your torque converter; how would tranny do with engine power in park?
your engine wouldn't be as smooth because it might have carbon buildup all over the place, which is normal

 

All these suggestions are a touch far fetched. I still think my considerations are more appropriate and relative. Eliminate the small/easier items before going to extreme.

 

Thanks Darcy.
SES is not ON. I had the hood open while in park and when I hit the gas, I hear the engine and it doesn't sound as healthy as it used to. I understand the car has 149K miles.
How about using premium motor oil specially formulated for higher-mileage cars -- such as Castrol GTX?
Do you recommend any off the shelf product from AutoZone to reduce engine noise?

 

If its not in gear it wouldnt have anything to do with your transmission. Try doing a fuel systems cleaning, or what a lot of people like to do on hear seafoam.

 

? ?? ? ? ? ?? Strange, that's my cars name

 

My bad...

 

Thanks Derek.

I'll try one of those fuel system cleaners.
BTW--I've always wanted an air intake. How does your Maxima run with the air intake you got?

 

No problem. Make sure with the cleaners its actually something for the engine not just your typical gas tank additive.

My intake is great. I just switched over from the apexi air to the k&n and I think the K&N runs much better and is bigger. Its cheaper to so id recommend you save the money and get the K&N.The intake has a low whistle and past 4k it growls mean and makes the 3.5 sound great.

 

[QUOTE=Gle03Max]No problem. Make sure with the cleaners its actually something for the engine not just your typical gas tank additive.

What brand is recommended for our cars?

 

[QUOTE=2003SE]Id buy seafoam from autzone. ( $5.99 if I remember correctly ) Then i would do half in gas tank and other half through brake booster vacuum line.

There is a video how to here - http://forums.maxima.org/showthread.php?t=508545

There is also other info in there.

 

How many miles on your spark plugs?

 

50K or 60K. Time to check those too. Thanks man.

 

thats pretty high milage for 03. out of curiosity, does your engine burn any oil?