No more hair to pull out, Throttle response!!
07-16-2011, 07:02 AM
#81
Actually, My car is still at the dealer without any progress, The tech who's taking care of the problem asked one technician who works for another dealer to test drive my poor Z. He came to a conclusion that for some odd reason the transmission is not downshifting when you re-accelerate, And since there's no failing sensors or wiring, The transmission will be opened & checked this week.
07-16-2011, 07:11 AM
#82
Registered User
iTrader: (13)
Join Date: Nov 2010
Location: Houston
Posts: 1,421
Likes: 0
Received 0 Likes
on
0 Posts
Actually, My car is still at the dealer without any progress, The tech who's taking care of the problem asked one technician who works for another dealer to test drive my poor Z. He came to a conclusion that for some odd reason the transmission is not downshifting when you re-accelerate, And since there's no failing sensors or wiring, The transmission will be opened & checked this week.
07-16-2011, 07:12 AM
#83
Registered User
iTrader: (9)
Join Date: Nov 2005
Location: NYC
Posts: 4,080
Likes: 0
Received 0 Likes
on
0 Posts
Since they're looking at the transmission. Have they checked the TCM sensor wiring? I was told the pins can corrode sometimes - it's a cheap and easy fix to try. I still personally doubt it, and I do think it's a cam issue, but if they want to inspect the transmission they can inspect that.
07-22-2011, 02:24 AM
#85
Actually OP is in very bad situation , I don't even want to remember that i own this car, I'm driving my swift now & i'm so happy with it, F. ck the Z.
The transmission has nothing wrong with it ( i don't know if i should be happy or not !!!! ), Synchros, Fluid, Housing, Filter, Torque Converter, TCM was reprogrammed, Wiring, VB was checked also !!!!!!
I asked them to check the timing chain as ArnoldK suggested but they didn't accept the idea, The tech said that it doesn't sound like a timing issue !!!
Now, The tech said that he will contact NISSAN with some data log & see what they say .
, I don't even want to remember that i own this car, I'm driving my swift now & i'm so happy with it, F. ck the Z.The transmission has nothing wrong with it ( i don't know if i should be happy or not !!!! ), Synchros, Fluid, Housing, Filter, Torque Converter, TCM was reprogrammed, Wiring, VB was checked also !!!!!!
I asked them to check the timing chain as ArnoldK suggested but they didn't accept the idea, The tech said that it doesn't sound like a timing issue !!!
Now, The tech said that he will contact NISSAN with some data log & see what they say .
07-23-2011, 09:12 PM
#89
Registered User
iTrader: (9)
Join Date: Nov 2005
Location: NYC
Posts: 4,080
Likes: 0
Received 0 Likes
on
0 Posts
Okay, let us know how it goes. The easiest thing to look for when inspecting the cam assembly is the follower at the very beginning of the camshaft. It looks like an aluminum candle holder, if you will. Pictures below:
A worn one will look pretty obviously worn...as such:
But when the wear is that bad or noticeable, you can't just replace the follower. Chances are that wear has also damaged the camshaft itself. Inspecting the lobes of the camshaft (the bumps/protrusions that run along it, basically) will reveal additional details on the condition of the camshaft.
A worn one will look pretty obviously worn...as such:
But when the wear is that bad or noticeable, you can't just replace the follower. Chances are that wear has also damaged the camshaft itself. Inspecting the lobes of the camshaft (the bumps/protrusions that run along it, basically) will reveal additional details on the condition of the camshaft.
07-24-2011, 07:16 AM
#91
Okay, let us know how it goes. The easiest thing to look for when inspecting the cam assembly is the follower at the very beginning of the camshaft. It looks like an aluminum candle holder, if you will. Pictures below:
A worn one will look pretty obviously worn...as such:
But when the wear is that bad or noticeable, you can't just replace the follower. Chances are that wear has also damaged the camshaft itself. Inspecting the lobes of the camshaft (the bumps/protrusions that run along it, basically) will reveal additional details on the condition of the camshaft.
A worn one will look pretty obviously worn...as such:
But when the wear is that bad or noticeable, you can't just replace the follower. Chances are that wear has also damaged the camshaft itself. Inspecting the lobes of the camshaft (the bumps/protrusions that run along it, basically) will reveal additional details on the condition of the camshaft.
Good question, I asked him the same one, But as the tech explained to me before, many signals and sensors are controlling the transmission & since there's no failing sensors, wiring or any DTC, They had to get it checked.
07-25-2011, 08:54 AM
#92
Administrator
iTrader: (25)
09-05-2011, 09:37 PM
#94
I'm checking periodically but they cannot sort it out, My car is still collecting dust at the dealer ...
I received a PM from one member who said that he had the exact same problem & he couldn't figure it out even after spending 6000$, This week he found out that it was his tail light bulbs. I know that the throttle is being detected through the tail lamp circuit, But i have killed this idea by checking every single bulb in the car, Fuses, brake switch, What else !!!
Man, This car makes me sick to my stomach .
I received a PM from one member who said that he had the exact same problem & he couldn't figure it out even after spending 6000$, This week he found out that it was his tail light bulbs. I know that the throttle is being detected through the tail lamp circuit, But i have killed this idea by checking every single bulb in the car, Fuses, brake switch, What else !!!
Man, This car makes me sick to my stomach .
11-13-2011, 11:16 PM
#97
No updates Man, The dealer failed to diagnose the problem, I took the car without a fix. The car still drives fine around the block, You will never notice that there's a problem with the car as long as you are cruising unde 3000 RPM .
Thought about taking it to another dealer, But i lost the interest in this car, I may be selling it as it's and get a camaro
!!!
Thought about taking it to another dealer, But i lost the interest in this car, I may be selling it as it's and get a camaro
!!!
11-14-2011, 02:50 AM
#99
Registered User
I still think it's a sensor that's "stuck" at a value that's acceptable to the ECU. However, since the value doesn't change, whatever it's controlling doesn't work like it should, and it's downhill from there. Turning the engine off resets the ECU, everything looks OK at first, then it repeats the process.
I'd look at the temperature sensor in the AT, since you already know it's not going into the lockup, which is a function of fluid temperature. Find out what the sensor outputs are supposed to be for different fluid temperatures, and make sure that's what it's putting out.
I'd look at the temperature sensor in the AT, since you already know it's not going into the lockup, which is a function of fluid temperature. Find out what the sensor outputs are supposed to be for different fluid temperatures, and make sure that's what it's putting out.
Last edited by winchman; 11-14-2011 at 02:52 AM.
01-22-2012, 11:08 AM
#100
I'll toss my exerience:
I had OEM tail lights and started running into an acceleration issue where the car always went into limp mode. I checked for leaks, replaced gaskets, then went off to the dealership. They found that the Tail light bulbs were bad... although they were working. Because of the change of resistance on the wire, ECU was going into limp mode. They almost charged me 350 dollars in labor for this, I got it covered for 100 under my extendewd warranty
-NissanTracker
I had OEM tail lights and started running into an acceleration issue where the car always went into limp mode. I checked for leaks, replaced gaskets, then went off to the dealership. They found that the Tail light bulbs were bad... although they were working. Because of the change of resistance on the wire, ECU was going into limp mode. They almost charged me 350 dollars in labor for this, I got it covered for 100 under my extendewd warranty
-NissanTracker