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01-18-2010, 01:41 PM | #1 | |
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4l60e no 2nd gear
Transmission is a 4l60e. It shifts from 1st to 3rd after you get up to about 20-25 mph and let off the gas slightly. All other gears are fine. I have 1st, 3rd, 4th and reverse. I changed the fluid and filter, but no change. Fluid was not burnt smelling. Could it be valve body?
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01-18-2010, 05:48 PM | #2 | ||
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Re: 4l60e no 2nd gear
Quote:
this coil of the 1-2 solenoid should read 19-24 ohms..this would be at the transmission electrical connector terminal A to E... having the drive train codes pulled would narrow this down ...with the dtc it takes the mystery out of it ...most likely a minor repair.. need OEM specific drive train code reader... the 1-2 shift solenoid is at the rear of the tranny pan ...some have dislodged the connections to the solenoids back there... |
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01-18-2010, 08:09 PM | #3 | |
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Re: 4l60e no 2nd gear
I took the valve body off and cleaned it thoroughly. Put it back together and no change. When I try to shift manually, second just revs the motor and no go. I think it may be time to rebuild this puppy. It has 152k miles on it.
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01-18-2010, 09:46 PM | #4 | |
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Re: 4l60e no 2nd gear
measure the resistance if good do the valve test with air pressure and power to the solenoid valve to see if its not sticking..
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01-19-2010, 12:14 AM | #5 | |
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Re: 4l60e no 2nd gear
I would pop the band servo off the side of the trans and check it next. Usually the "A" and "B" solenoids will give you a code when they are bad. What year is the trans??
transman
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01-19-2010, 04:52 AM | #6 | |
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Re: 4l60e no 2nd gear
1997 chevy k1500. About a week ago, it started to slip a little when climbing a hill like sliding into gear and not a good firm shift. Now, just no second gear after fluid and filter change last weekend. Doesn't the 2-4 band cover 2nd and 4th gear?
Last edited by daronlayne; 01-19-2010 at 05:28 AM. |
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01-19-2010, 12:33 PM | #7 | ||
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Re: 4l60e no 2nd gear
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//2000CAYukon |
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01-19-2010, 07:12 PM | #8 | ||
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Re: 4l60e no 2nd gear
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transman
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01-20-2010, 10:07 AM | #9 | |
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Re: 4l60e no 2nd gear
What are the benefits of a corvette servo?
I have sort of a following question for the 4l60e trans experts in this thread. In my pickup, it shifts fine through all the gears, but at some points the shift from 2-3 seems harsher than the others and you can sometimes hear a clunk. Is this normal? Funny thing is when climbing hills or when I'm accellerating hard, the 2-3 shift is as smooth as the others. It makes absolutly no sence to me. The only thing I can think of is maybe an accumulator spring is broke causing a harsh enguagement. It only shifts harsher when I am cruising with light accelleration. Does it sound like someone installed a corvette servo? I just bought it with 100,000 miles and now it has 110,000. Has done it ever since I bought it.
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01-21-2010, 06:02 AM | #10 | |
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Re: 4l60e no 2nd gear
Ok, now it is starting to slip a little at highway speed in 4th. I have ordered the master rebuild kit and am hoping to dig into this thing this weekend. Hopefully after this, I can get another 150,000 miles out of it. The rebuild kit has new frictions, steels and pistons. I also ordered the beast sunshell.
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01-21-2010, 05:51 PM | #11 | ||
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Re: 4l60e no 2nd gear
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since there is 150,ooomi on it a new torque converter would be best... use only the new dexron VI. NO dexron III ! |
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01-21-2010, 05:55 PM | #12 | ||
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Re: 4l60e no 2nd gear
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01-22-2010, 12:17 AM | #13 | ||
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Re: 4l60e no 2nd gear
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transman
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01-22-2010, 12:32 AM | #14 | ||
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Re: 4l60e no 2nd gear
Quote:
ALWAYS replace the torque converter during an overhaul. transman
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01-24-2010, 05:57 AM | #15 | |
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Re: 4l60e no 2nd gear
Well I have the tranny out, torn down and cleaned. What I have found is that the 2-4 band is completely worn out, the input drum is worn and forward clutch piston is cracked. I will post an update in a couple of days. I have to get more parts.
Last edited by daronlayne; 01-24-2010 at 07:01 AM. |
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