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Dear Sir,
Can you guide me…
Why a can jerk from 1st to 2nd gear only when i start it in morning….here season is hot….it is UAE.
….When car come in normal running after sometime it become normal or sometime i feel extremely light jerk…On net i have searched a lot….some people says …check transmission fluid quality…….level….
Some says…transmission mounts can b problem….
some says it is transmission fault….what it can be?My car is Infiniti QX 4 2000 model..
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When is the last time you checked Transmission fluid quality, level? WHen is last time you had filter and pan fluid changed? Does the fluid smell bad like it has been burnt? Could help with new fluid or possibly trans additive with new fluid however the transmission may be too worn where it will not help. You did not give info of miles etc on car. Best of luck.
Dear Mr. John,
Appreciates your response.
I have recently changed the transmission from Mechanic. As car is old and have 2 Lakh KM above reading so i was only able to avail the option of used transmission from used spare parts market.
In previous transmission….shifting from 1st to 2nd was very jerky and hard…means you can’t have a cup of tea easily in car :)….. after changing transmission that jerk issue is much less now but still can feel…. and it goes off / less as car kept its running active…
As they have change the transmission so they must have changed the oil….not sure….as it was done by mechanic….
I will recheck these points…and will let you know…A relearn may be required.
I would check the fluid level. At operating temperature with the vehicle in park the fluid level should be in the hashing on the dipstick.
It could also be just a trait of the transmission that the 1-2 shift is a certain way.
Your QX4 is also known as a Nissan Pathfinder, there may be more information on that model and it’s issues available online.
I had the exact same problem for the longest time (years!) on my car (Civic VTEC 1.6L 1997, 120K Km). It wasn’t fixed by new transmission fluid, it wasn’t fixed by a transmission cleaning and overhaul, but recently it got fixed but since I did a couple of things I’m not sure which one fixed it:
1. I readjusted my throttle cable to be more taut, since I noticed it had play outside of the recommended specs (my transmission also has a connected kickdown cable but I did not readjust it).
2. I stopped my habit of shifting to neutral when at traffic lights (I developed this habit when my car had (unknown at that time) grounding problems which caused my RPM to drop when I was at stops stepping on the brakes on Drive) since I learned this was bad.
3. My ECU was reset (inadvertently) when I was removing fuses to troubleshoot a no-start condition after I accidentally drained my battery.This all happened within two weeks of each other and I noticed that since these events, my harsh shifting from 1>2 disappeared. It’s still there to a smaller degree when the car does its first shift after a cold start but as soon as I get to do it the second or third 1>2 shift it’s gone.
So again, I’m not sure which fixed it, but if I had to guess it was mostly #3 because that’s the last thing that happened before I started noticing the change. Maybe with the help of #1 & #2.
Just putting it out there in case that helps.
Thanks for everyone…
I will recheck the ECU reset and fluid levels…..because sometimes it really feel bad when car jerk…
Can anyone guide….if i change the fluid to a new one….(if old transmission fluid is bad)…..will it help me?
What precaution is required in that case?…..can you guide me any specific fluid quality…that is good for transmission or any extra liquid to add which can help in solving jerk issue….
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