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Transmission (4l60e) Help!

SilverSingleCab

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SilverSingleCab New Member

SilverSingleCab

Posted
Posted

Hey guys I was recommended to the forum here from a friend of mine, he said he got plenty of help here and I am hoping for the same! I have an 05 silverado swb single cab 2wd 4.3 4l60e transmission here recently I was just cruising down the road about 55 2 lane highway truck was in 3rd gear, got in the 2nd lane to pass and gave it some gas and nothing was there it was like the truck was in neutral. No pull what so ever, the truck has never had any issues with the transmission no slipping missed gears, etc.. I checked the fluid first off it is a black looking color but it does not smell burnt, I had it scanned and a code p1870 came up which means there was some slipping detected, my question is does the transmission need to be rebuilt or is it a valve body, pressure switch, solenoid or something like that? PLEASE help me out here guys any information will be greatly appreciated!!

Black02Silverado Senior Enthusiast

Black02Silverado

Posted
Posted

How many miles are on the vehicle? As stated above, transmission fluid should be red not black. Not good. You can try draining out and putting new fluid in it but more than likely the transmission is toast.

nickvrebel Senior Enthusiast

nickvrebel

Posted
Posted
How many miles are on the vehicle? As stated above, transmission fluid should be red not black. Not good. You can try draining out and putting new fluid in it but more than likely the transmission is toast.

^^^ sounds like you smoked a clutch pack which replacement involves "rebuilding" the transmission

chas0218 Enthusiast

chas0218

Posted
Posted

Not sure what it costs anymore but when I had my tranny looked at by a local GM dealership it was 109.99 diagnostic fee. This was removal of the tranny and a complete break down of what parts were needed. It is another 109.99 for them to put it back in but for $220 for someone to remove diagnose and re-install was cheap.

 

How many miles are on the truck? If the fluid is black she is toast, pull the pan and see if there are any chucks of material or metal shavings in the bottom of the pan.

 

I have gone thru Pro Built automatics for a lot of tranny parts for my 700r4 in my camaro. I highly recommend them. Dana does great work and knows his stuff. http://www.700r4l60e.com/

transman618 Enthusiast

transman618

Posted
Posted
Hey guys I was recommended to the forum here from a friend of mine, he said he got plenty of help here and I am hoping for the same! I have an 05 silverado swb single cab 2wd 4.3 4l60e transmission here recently I was just cruising down the road about 55 2 lane highway truck was in 3rd gear, got in the 2nd lane to pass and gave it some gas and nothing was there it was like the truck was in neutral. No pull what so ever, the truck has never had any issues with the transmission no slipping missed gears, etc.. I checked the fluid first off it is a black looking color but it does not smell burnt, I had it scanned and a code p1870 came up which means there was some slipping detected, my question is does the transmission need to be rebuilt or is it a valve body, pressure switch, solenoid or something like that? PLEASE help me out here guys any information will be greatly appreciated!!

 

 

No, its rebuild time. Black fluid, slipping when attempting to pass. You are more than likely going to find the 3-4 clutches burned up. Once it starts slipping you can kiss it goodbye. Clutch frictions are only thousandths of an inch thick each so any amount of slipping is bad.

 

 

transman

DwayneJ Enthusiast

DwayneJ

Posted
Posted

ProBuilt Automatics is who I used for the 4L60E in my street/strip car and I plan to talk to him about a shift kit when the dealer warranty is up on the tranny in my truck.

 

I agree your experience is right in line with what I have had happen with 3-4 clutch pack failures.

tonygxp Enthusiast

tonygxp

Posted
Posted

the TBSS's were doing this when they came out in early '06. usually blowing up the pos 4l70e (a stronger, yeah right, version of the 65e) the same way you described, downshifting during a pass atempt, i'm sure it's the same deal, trans is gone.

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