Snapping into Gear

[jimmy4645]

What's up guys? I have a 2006 G35 Sedan AT and I have notice two problems with my car while switching gears. Wondering if anyone out there has experienced similar problems.

Problem #1. On those cold winter mornings (Around 30 degrees); It sounds like the transmission is snapping into each gear (1st-5th) sending a power punch of torque to the differential making a thump noise at the rear of the car. This goes on for about 5-10 minutes until the car and transmission warms up and it goes away.

Problem #2.It’s the same thump noise I hear, but the driving conditions are different. The thump noise occurs when I am in the tiptronic mode switching from second to third gear only under medium to heavy acceleration. Doesn’t matter what the outside temperature.

Can you guys give me some insight of my current situation?

P.S. I also brought the car in and they told me they could not experience the same noise I have experience and did nothing. I feel like bringing in the car and doing the test drive myself with them in the car with me..... Thanks guys!!

[Omegamerc]

Problem #2.It’s the same thump noise I hear, but the driving conditions are different. The thump noise occurs when I am in the tiptronic mode switching from second to third gear only under medium to heavy acceleration. Doesn’t matter what the outside temperature.

I get this nasty 'thump' from 2nd to 3rd gear also when doing medium to heavy use.

[jimmy4645]

How many miles do you have on our car?

Did you take it in for a check up?

[jimmy4645]

wow i guess i'm the only one with this problem!!??!?!?

[G_whizz]

BUMP anyone have/had similar problems??

[jimmy4645]

[qg35]

Have an 07 G35X, and it's butter smooth in full auto and sport auto modes. If I go to manual/Auto I get a nice solid shift from 2nd to 3rd at low to medium throttle. If I give some gas and shift over 4500 rpms...its back to smooth again.

So, only in manual mode at medium and below throttle applications.

Hope that helps

[suby01]

same here in M mode 2-3rd is a thump sometimes...