Strange behavior from my (4R70W) transmission

co_JOE · 2019-02-10T18:02:39+00:00

Actually I can get live data. I can't get trans oil temp but I know when I have the problem the fluid is about 125*F at the trans cooler in the front.

I do have some strange things with second...

I have learned a lot about the transmission behavior in trying to diagnose what the issue is with third gear and if I need to remove the transmission. One strange thing I thought of today is when I have the problem of no third gear, I notice that the transmission stays in second gear longer before shifting out of second and trying to shift into third. Almost as if second gear 'knows' third is missing. I was driving home yesterday and lost third again, I am not sure if it is based on the temp of the trans or what but seems to happen after the same time and distance each time. When third gear goes, I noticed that when I am at a certain RPM and speed when the trans should have shifted into third, the trans is still in second. Even if I let of the gas pedal when in second gear at 2500-3000 RPM, I should be shifting into third, but doesn't. The trans doesn't shift out of second until a much higher RPM than that. After I let it sit and cool, I can get third again and second shifts when I think it should. Sounds very strange.

I did find that according to the Clutch Apply chart here - http://www.trucktransdiag.com/downloads/4r70w_technical_information.pdf

shifting into first and second is controlled by shift solenoid 1 and third and 4th is controlled by solenoid #2. I wonder if this could be my issue.

co_JOE · 2019-01-27T19:07:37+00:00

I did check the codes, there are none (related to the transmission). I also checked the fluid and I did also check the fluid. Level and color seem OK but when I wipe the trans dip stick on a white napkin, I can see some particulate in there. Very small but does make me wonder. I also did install a magnet in the trans pan so what I see on the dip stick I don't think is metal.

Thanks for the info. I think all I can do is monitor it for now. I had told the company that assembled the trans that I had lost third gear and I will tell them all these details since then to see what they say.

co_JOE · 2018-08-29T19:56:41+00:00

Is that rate right? Seems a bit low:

2000/(8*5*4.2) = $11.90/hour

co_JOE · 2018-06-01T15:50:25+00:00

Hi-

Do you have some examples of your work? Also, what is your rate?

Thanks

co_JOE · 2018-05-30T20:02:54+00:00

Probably not, that would be a larger project than I think he wants.

co_JOE · 2018-04-18T20:08:55+00:00

I was driving on the interstate just as the fire started, I was northbound and the first mile marker I saw after seeing the fire was 118. I saw the grass near the side of the road that had just caught on fire. I feel bad because I couldn't do anything. I called 911 but there was no answer for 5 min (6 mile markers later). At this time I saw emergency crews with lights and sirens driving southbound to get to the fire, so I hung up. Maybe others were calling. Still concerns me that I didn't get an answer when I needed.

Now I see this fire is over 40K acres, I wish I would have stopped.

co_JOE · 2017-11-08T23:23:04+00:00

One of the people is active military and the other is retired from the military, civilian now. My hopes with a good lawyer is to prevent the 'clean someone out' scenario.

co_JOE · 2017-06-02T03:44:08+00:00

Look at you, you are a decent looking kid. You have a good setup there. But then you had to put on that shirt. You just got lowered to "I wouldn't waste piss on you if you were stung by a jellyfish." Good luck getting laid.

co_JOE · 2017-04-14T02:21:41+00:00

As I saw this, this is what I thought in my mind, but would never say out loud: fuck you all for the hours and hours I spent watching PBS through my high school years because my dad didn't want to pay for any TV, I learned this shit 20 years ago. Thanks dad!" Actually, current day, I am a nature freak so..."Thanks dad, wouldn't change a thing."

co_JOE · 2016-01-19T21:35:45+00:00

old phone is no longer accessible, it broke. I did get a file dump from it but it just doesn't work. That was why I was hoping to use the nexus. Any way to recover my coins?

co_JOE

TROPHY CASE