Ok Folks, this is a weird one.
When I am traveling 30-40 mph, and I put a little bit of gas into her, just to get up a gentle hill, something int the drive train vibrates like I am going over a subtle washboard. You can feel it in the floor, as well as the gas pedal. The truck stays at about 1100rpm without accelerating. When I put a little more gas into it, it sometimes clunks, sometimes not, the vibration stops and it accelerates as normal.
My mechanic buddy was trying to explain to me about a clutch in the transfer case that could be sticking rather than grabbing when at low speeds, but he wasn't sure how Nissan's are set up. Any advice?
Thanks.
Transmission Chattering at low RPMs
Moderator: volvite
This happend to me. I felt the vibration as you described. I was at 62K miles, but my dealer got me a rebuilt transmission, no charge. I had to pay for the radiator though.kramer wrote:Inspect your trans fluid, drain it all if you have to. Slight chance you have the dreaded transmission cooler leak in your rad which means your trans would be on its way out.
Hilarious. After I explained it to them, they call me a few hours later and inform me that my oil fill cap is loose and the heat shield around my oil filter needs new clips, which incidently is not covered by warranty (ha ha). I told him I was confused beucase I told him it felt like the transmission wasn't engaging or that sumthing was stuttering in the drive train. He said that's different than what I said in the morning and he read what he wrote down, "Customer states that at low speeds with light acceleration, it sounds like a rumble strip." Wow.
They are taking another look at it after I explained that a loose cap and heat shield will not prevent acceleration and make the entire truck shudder!!!
Why can't we talk to the mechanics? Seriously.
They are taking another look at it after I explained that a loose cap and heat shield will not prevent acceleration and make the entire truck shudder!!!
Why can't we talk to the mechanics? Seriously.
When I brought mine into my dealership with your same description and info on the problem I found all over the web. They agreed that I could be right and confirmed it a few hours later with a phone call. As I mentioned I was at about 62K miles so they covered a Rebuilt Tranny and made me pay for the radiator ($800 and Change). Mainly because I reported a rattle that was never located at my last service at 58K miles. While the rattle was not related to the tranny, they used it to battle Nissan N.A. for me to get the rebuilt tranny, saying the issue started before the end of the warranty.
I brought it in for a rattle that I saw a TSB on for the power intake valve that rattles right at 2200RPM. They ended up replacing the timing chain tensioners. The rattle is still there, but I didn't push it because I got a new timing chain out of it.
I have the extended warranty even if I was past 60K, which I am not, so my only worry is that they won't be able to replicate it. Then I'll have to go in and do it for them, but then they'll have to keep it another day.
It just bothers me that I described it to my mechanic friend, who imediately had 2 different, power-train, related ideas and they come back with an oil fill cap and heat shield as the cause. The service writers have abbreviated my description of problems in the past, which in turn, delayed diagnosis by the mechanic.
I have the extended warranty even if I was past 60K, which I am not, so my only worry is that they won't be able to replicate it. Then I'll have to go in and do it for them, but then they'll have to keep it another day.
It just bothers me that I described it to my mechanic friend, who imediately had 2 different, power-train, related ideas and they come back with an oil fill cap and heat shield as the cause. The service writers have abbreviated my description of problems in the past, which in turn, delayed diagnosis by the mechanic.
the service tech's will do and say anything to make the fix cheap as possible, sure seems like they are trying to buy time so you excced your 50k miles 3 years standard power train warranty....who knows.
but they are not on your side that is for sure.
but they are not on your side that is for sure.
myriad46 wrote:I brought it in for a rattle that I saw a TSB on for the power intake valve that rattles right at 2200RPM. They ended up replacing the timing chain tensioners. The rattle is still there, but I didn't push it because I got a new timing chain out of it.
I have the extended warranty even if I was past 60K, which I am not, so my only worry is that they won't be able to replicate it. Then I'll have to go in and do it for them, but then they'll have to keep it another day.
It just bothers me that I described it to my mechanic friend, who imediately had 2 different, power-train, related ideas and they come back with an oil fill cap and heat shield as the cause. The service writers have abbreviated my description of problems in the past, which in turn, delayed diagnosis by the mechanic.
UPDATE!!!
Well, I ended up driving it for them, and of course it would not happen with the tech in the car. Luckily I had it in for a control arm linkage also, so no "diagnostic fee."
Their thought is that the tranny is having trouble down-shifting in some conditions, or that a servo in the torque converter is having a hard time engaging. Either way, until it starts doing it on a more predictable basis, they can't warranty anything.
They checked the tranny and it was clean, so I guess it's not the dreaded radiator breach. I got another year and half or 40K on my extended, so plenty of time.
The "Oil fill" cover was not the cap on the top of the engine, they meant the little hatch on the skid plate to drain the oil was rattling, as well as the heat shield around the oil filter. Any body tighten that one up, or remove it before?
Their thought is that the tranny is having trouble down-shifting in some conditions, or that a servo in the torque converter is having a hard time engaging. Either way, until it starts doing it on a more predictable basis, they can't warranty anything.
They checked the tranny and it was clean, so I guess it's not the dreaded radiator breach. I got another year and half or 40K on my extended, so plenty of time.
The "Oil fill" cover was not the cap on the top of the engine, they meant the little hatch on the skid plate to drain the oil was rattling, as well as the heat shield around the oil filter. Any body tighten that one up, or remove it before?
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