My fellow G-bros, I’ve encountered a very serious issue with my 05 G35 Coupe A/T. Apparently when I shift to Drive, theres a big jerk in the gear and I have to accelerate to up till 3000 RPM to make the car move. The first gear takes a lot of time to shift as well but as soon as it shifts to the 2nd, the rpm comes back to 2000 (which is normal) with all the other 5 gears shifting perfectly. I’ve checked all the fluids, changed the MAF sensor 5 times, re-idled the computer, cleaned out the exhaust filters but no change.

Any help would be greatly appreciated.

 

What made you suspect the MAF was bad and needed replacing 5 times, was it shooting an error code for the MAF or IAT sensors? What check engine light necessitated all these engine repairs when your troubles appear to be originating from the transmission?

What is this "exhaust filter" you're referring to?

What was your procedure for checking the transmission fluid? The symptoms you described are simply low fluid symptoms, did you get the transmission to the MINIMUM REQUIRED 104 degrees F and cycle gears properly before parking the vehicle and checking the fluid level with the engine still running?

Have you been doing a fluid replacement drain/fill for the AT on schedule every 30k miles as required by the manufacturer to prevent early transmission failure?

Sorry if this comes off harsh but nearly all automatic transmission problems are simply due to neglect by the owner.

 

Sounds like low fluid. Happen to me when mechanic changed my radiator and lost some fluid through the radiator line. Brought it back and watched him add over a quart

 

lol why did you go nuts repairing everything beside the actual issue? like cleric said, did you check the trans fluid? the color and smell? when was the last time the trans fluid and filter been changed?

sounds like there might be an issue with your torque converter as well..but FIRST.check the things above then get back to us

BRB i need to go clean my exhaust filters

 

 

 

Ok, exhaust filter is a new one for me then. I would recommend taking it in to Nissan for a diagnostic at this point. With Consult-II or III they can see exactly what's going on inside the transmission and will be able to give you an exact cause so you don't have to keep throwing parts at the car hoping it will fix the problem. After they tell you what's wrong you can decide how you want to proceed with repairs.

 

so with this new info in hand, if you went to the nissan dealer for trans service and 10 days later the trans is acting up, why didn't you go back to the dealer?. Go back to nissan and tell them about the issue asap, they shouldn't charge you, especially if the issue started after they serviced the trans.

 

Idk I put my old radiator shroud back in after they charged me over $900 for a new one and it worked perfect. Went back to talk to the service manager and he asked "was your car overheating when you drove off our lot?" I said no. He says "then it sounds like we fixed your problem." I drove with the old fans for years with 0 problems
I'd still take your car back to talk about it but good luck with them taking the blame.

 

ouch, yea there is a chance they won't cooperate but in his case transmission problems sometimes don't manifest themselves right away. Either way, if there was no issues prior then i think he has a shot for at least a free diag

 

 

I still haven't gotten a direct answer from you though, have you checked the fluid level. Transmission needs to be up to temperature, go for a highway cruise, come back, park, go through EACH gear and hold each gear for a few seconds, leave engine running and check the fluid level.

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Change the MAF sensor 5 more times & replace your exhaust filters along with the flux capacitor.

Telcoman

 

Flux capacitor should do it

 

not quite following what you just said ... so wait, you had this problem BEFORE or AFTER you went to nissan? there are different levels of service departments? ... lol im so confused