Im going to explain the whole story in its entirety, as its all the information I could possibly use to figure out WHAT THE F*CK is wrong with my car. If youre not willing to read the whole story, then dont bother commenting, I respect all of the very knowledgable shops and tuners and hardcore gearheads that roam the G boards, and I would highly appreciate your input.

Please help me out guys


Back in Feb of 06, I was cut off by some f*cking idiot and I admit, I was going a little too fast, and I went over a median. The whole right rear end was damaged. The passenger rear wheel looked like it has 45 degrees of positive camber, and the sway bar was broken off the wheel. Okay, so they tow it back to a shop.

They replaced:
Lateral Arm, Radius Arm, Lower Control Arm, Knuckle, and wheel bearing.

We put on a used 05 19" OEM wheel, and they said the alignment was good and everything .Mind you I payed all of this out of pocket, I did not want to deal with the Insurance company, due to previous issues. Got the car back in 3 weeks, and as I get on the highway, I feel a humming...from 45MPH+ and up, but the car still had its power, nothing else was really affected, but I had this nasty humming, it wasnt a fast humming, more like, HUMM HUMMM HUMMMM, not like a wheel spinning at a fast rate hum... lol

I took it back to the shop to see what it could be, and we put the car on a lift and have someone drive it while in the air. We found very slight movement in the driveshaft, it moved up and down by about 1/4 inch. He said Id be fine for a while but to either re-balance it or replace it with a new one if re-balancing cant be done. Well I put it off for about 4-5 months, but as time went on, it got worse and worse. I took it to a driveshaft shop, and they told me it wasnt fixable and that I had to replace with a new one. Well I didnt have the money to blow $650 on a shaft, so I couldnt get this done till now.


Now for the worst part of all this, my car started to get slower and slower and slower over time.The first 2-3 months after the accident, the car was for the most part still quick. But in the next 3-4 months after, the power degraded and degraded so hard over time. It is seriously horrible. When I would mash on 1st when I needed power, there is a HUGE hesitation and the power is just not there. Its almost like the car holds itself back. Its so weird to explain. It feels as if the car gained 1,500 lbs. And now the car is just bad. Idk if the bent driveshaft over time fooled the ECU or something, or if there is something wrong with the differential OR WHAT. There were other symptoms, such as excessive tugging while in 1st or 2nd gear at low speeds, I know manual transmissions have tugging when you dont have throttle applied, but this was crazy excessive.

I think I honestly became a better MT driver, from all this, cuz this whole issue made me figure out how to smooth out on gearshifts, but it was still horrible. I finally replaced the driveshaft, and the shaking and tugging is now gone, but the car is still insanely slow. The humming is still present, but my friends tell me it could possible be my very bald tires thats causing the humming (were gonna swap wheels today to see if we can get the humming out of the equation).

Me and my friends are baffled on what it could possibly be, that is making my engine hesitate so much, it feels so horrible. The motor physically feels that it can just wind out nice and strong, but theres insane amounts of hesitation and no torque or nothing. You have to drive it to feel it for yourself. What I think two things that it could possibly be, is that maybe the bent driveshaft over time messed with my differential, causing this insane cut of power, or that my ECU adapted to the driveshaft and somehow hardcoded itself with its slower rotating speeds or somesh*t? I have tried an ECU reset (pedal method, but I will do the overnight disconnect to make sure), I have tried Fuel System cleaner (for sh*ts and giggles), Ive tried the MAF cleaner, and nothing. Could my injectors possibly be bad? The last things I am going to try, is to put my stock intake back on, and swap wheels with my friends Z (to see if we can get rid of the humming). If I cant find out what is wrong with my car by the end of this weekend, Im making and appointment with the dealer on Monday. I havent taken it to the dealership because they have no knowledge of the accident, neither does my insurance company, so I tried to cover this up by myself and I cannot figure out what the hell is wrong with the car. But Ive had it, and its going to the dealership on Monday. Please fellas, any input would be highly appreciated.

 

cliff notes please heh

 

Moral of the story: if it's broken, don't wait til the last minute to fix it. If you can't afford to get it fixed, then you shouldn't be driving it. Get a Scion. Fully loaded at 14k.

 

Zing! Time to de-mod

Oh wait...

 

I aint ask for you to be my financial advisor. You dont know me, you dont know my dealings, you dont know my life. If you dont have positive input, stay out of the thread.

 

this thread is going no where quick..

so let me get this straight one of your wheels got messed up and now your engine is going to the crapper because of it?? try using one of those malfunction checkers that you plug in to your engine; don't they have those for our car? if not then maybe the dealer has something similar to it??

good luck with having your car at the dealership. hopefully they won't give you a "we don't know what's wrong with it" answer either..

 

I have further updates

One of my boys that works at the Infiniti dealership did the favor of running some tests on the car. He connected this computer to the inside of my car ( I believe its called Nissan Code II or something like that) and checked my ECU and injector firing and ECM and BCM modules. He said everything looked normal. I explained the entire situation to him and he thinks it may most likely be the Diff. My car also happens to burn oil (wonderful world of Rev-Up Motors), but he said that wouldnt cause the hesitation and degrading of power. Im going to swap wheels sometime this week with my friend to rule out the humming, hopefully that goes away. My friend at the dealership advised me to put the stock box back on and bring it in for inspection by an upper level tech. I need to get this entirely fixed

 

ouch... gluck bro

 

I just read your thread really fast and I’m relaxed on 4 beers and a steak diner so pardon my typos.

What a bummer...sorry to hear. A drive shaft thrown out of balance over time can f-up the parts it’s connect to. You stated a feeling of resistance. How’s your rear diff doing? That baby’s probably getting vibrated like a ***** as well as the trans. Over time the constant resonance is not good for anything. I’m no expert, but I’d be concerned about the complex parts at either end of that drive shaft. Good Luck!!

 

lol..in the time it took me to write my reply above ...2 more people wrote theirs. Dam I'm slow.

*looks for beer bottle*

 

^shakes head.

 

speed sensor? and the VDC SOMEHOW trying to regulate the speed without a light/code?

 

I would bet the problem is in the diff.

 

sorry hear that man...did swapping the wheels get rid of the humming??

 

would have been cheaper, wiser, and less stressful to go through insurance...did you check your engine mounts