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Comments
John
thank you so very much
Reply would be very much appreciated as I have to decide whether or not to go ahead with the replacement
thank you
Let's keep the discussion here so everyone will benefit.
tidester, host
SUVs and Smart Shopper
Reverse, 1st and 2nd gears worked. 3rd and 4th didn't work. Total mileage : 124K
At ~30mph it tries to shift into 3rd gear, you can see the RPMs increase, but there is no speed increase.
The problem was that 3rd/4th gears didn't have any friction material (worn down to the metal) and there is valve that wasn't working correctly (thus no 3rd or 4th gears). Had the transmission rebuilt and it now shifts smoothly.
Cost ~2K.
but i also think a new torque converter will fix it for good
There is some kind of valve (my words) that engages once you get going a certain speed (like on the highway/freeway) and it sets. Then when you stop going fast (let's say you get off an exit and come to a light) the valve sticks and causes the hard shift. I have found that if I turn the truck off and turn it back on it resets. So like I said previously I have been driving that way for 5 years and it still does that today but it does not stick every time.
My understanding is that this so-called valve is like a small metal "dowel like" plug that slides back and forth depending on the speed and gets sluggish and does not always slide when it is supposed to. Weird explanation but I did not ask a lot of specific questions. I was just happy that it was supposedly no big deal and only a driver convenience/aggravation issue. This was my experience. I am not a mechanic and really don't know much about my Burban since it has given me great service and I have not had many problems except for now and that is why I am on the forum but not for a transmission problem. I hope that helps.
Can anyone tell me where the oil filter is located. I looked for it did not find. I am going to jack it up so I can get more room to move and look again but if someone knows please reply.
Also does anyone know what an 1870 transmission code refers to. I know it says "transmission part slipping". Would this mean the torque converter? Fluid level is good and I don't feel anything when driving.
After stopping the suburban didn't move at all after pushing the gas. I turned it off, and back on. Right after the engine turned on, I heard a one metal bang under the truck. Now, I continue hearing this one bang every time I start the truck.
When in any gear, (Drive, reverse, 1, 2, or 3), the truck won't move when pushing the gas. However, once every 10-15 starts, the suburban starts moving in either drive or reverse (apparently responding to the push on the gas) but soon after (30 seconds later) stops.
I checked the transmission fluid and it's overfilled 1-1.5 inches over the 2nd dot. I don't know if that's way too overfilled to cause this problem or not. Maybe, it's not the problem at all.
I regularly take the truck to the dealership for regular service (oil change, fluid topoff, etc.) The last time fluid was added according to my invoices was in April '09. But the last time I took it to the dealer for service was for an oil change and according to the service center, all the fluids were "OK" and none were check marked in the "filled" section.
I don't take the truck anywhere else for service, so either the fluid was overfilled in April or December but not noted on the invoice.
Any thoughts on this problem???
I had to replace the transmission in My 07 Suburban (2WD) at 65m miles. (For what its worth I have never towed anything) I took it to AAMCO, I got the car back and 1 1/2 weeks later it went again. Two weeks ago I got the car back again , it just went again yesterday.
Am looking for some insight. Is there a problem with the car? Or did the AAMCO I took it to just not do a good job (twice). For what its worth I was 2 hrs away from home when it went this time, so it's at a different AAMCO.
Thanks,
Gerry
Exact same problem with my 2007 Suburban today. Exit highway and stopped at lights. Went to drive and nothing, might have gotten into first gear, but as soon as it went to shift into second, clunk, and nothing. Will not engage in D or 3 low, but was able to make it home in 2L. Did you have any luck getting your problem fixed?
Cheers
187k miles
the questions are
is there a repair to be done or a new transmission?
is it worth it to rebuild
i am reading this forum and notice alot of other suburb owners are complaining that the rebuilds are not running for more than 100k.
what type of transmission goes in my truck when i go to buy one...
If a 'soccer mum' is driving it...OK....but anyone who tows or puts the foot down from time to time will eventually destroy the trans.
The 4L60, 4L65, 4L70, 4L75 trans are all made for a sedan....not a 3 tonne vehicle.
What could be the problem? If the transmission needs to be rebuilt / replaced, should I purchase one or let someone do it? If I wanted to purchase a replacement, what should I look for and where is a good place to buy it?
thanks,
Tom
Im not sure if it has a bad torque converter or if its the whole transmission? the previous owner said he tried changing the filter and the fluid.. any info for me?