4l60e tcc shudder I think - The 1947 - Present Chevrolet & GMC Truck Message Board Network

homemade87 · 04-24-2017, 06:06 PM

I was coming home today and I have a pretty good hill to come up . Usually I push the gas just to make it come out of tc lock up ( 60 mph ) . When it came out of lock up I noticed a shudder or vibration . When it when back into lock up it quit or so it seemed. I did it again and the same thing just to confirm my suspicion and it did it again . I did it the 3rd time and same thing but the rpm started climbing to about 3,500 rpm so I soft pedaled it to the top of the hill . When I made my turn I gained some speed softly . When it went into 3rd I slowed and pulled it into 2nd and then 1st and all seemed well . Only had about a 1-1/2 miles to go . I have not had it back on the road . Fluid look really good . I flush every 50,000 miles .

This is a 06 4l60e 110,000 miles . This trans does not see any hard life . I drive it like a old lady for work . My question is does this sound like a TC going bad . Just wanted some input from the trans people . If the pan looks good with no metal can I just put a TC in or do you think there might be something else wrong . Would like to here some input

By the way I have a brand new stock convert in the corner I accumulated .

clinebarger · 04-24-2017, 09:58 PM

When the TCC is commanded off, The TCC Enable Solenoid just dumps Converter Feed & the TCC Apply Valve returns to it's relaxed state, TCC Release is fast, simple & reliable on this unit......TCC shudder is unlikely upon release. Apply issues are quite common.

Check for codes.
Fluid Level?
Has the filter been replaced?

homemade87 · 04-25-2017, 03:36 AM

Quote:

Originally Posted by clinebarger

When the TCC is commanded off, The TCC Enable Solenoid just dumps Converter Feed & the TCC Apply Valve returns to it's relaxed state, TCC Release is fast, simple & reliable on this unit......TCC shudder is unlikely upon release. Apply issues are quite common.

Check for codes.
Fluid Level?
Has the filter been replaced?

Yes , The filter has been replaced about 10,000 miles ago when the flush was done .Fluid level is good and looks good . I will check for codes tomorrow with a tech 2 . There is no service light . Do you think it would be a good idea to go for a test drive to see if it is still doing it after cool down or bad idea . Don't want to damage if fixable . I was so close to home I did not get it back up to speed after slow down to see if it did it again .

Thanks for the help clinbarger .Trans is not my strong suit . I have seen you help many on here . I will report when I check for codes .

Also was the higher that normal rpm a symptom of the apply issue .

**mongocanfly** · 04-25-2017, 04:40 AM

Just curious..is that "pretty good hill" the one between guntersville and albertville?

homemade87 · 04-25-2017, 06:55 AM

Quote:

Originally Posted by mongocanfly

Just curious..is that "pretty good hill" the one between guntersville and albertville?

Thats a good guess . Its the one just west of Guntersville towards Arab .

**mongocanfly** · 04-25-2017, 02:07 PM

Yep..that's a nice one on that side to..

*YoungPup1977* · 04-25-2017, 07:00 PM

The TransGo 4L60E series L shift kit fixes P1870/P0894 codes if you have them....
Also, this shift kit fixes TC Slip/Shudder.

Do you have cylinder deactivation ?

The TransGo shift kit comes with a new converter reg valve, spring and isolator valve.

Check codes, you may not have any yet...Do you have a harsh 1-2 shift ?

homemade87 · 04-25-2017, 08:05 PM

Ok , I drove it today to check things out . Cold start all shifted fine but the lock up was hunting in and out . After warm up 4th was slipping and vibrate under light acceleration . When I pulled it into 3rd the same happened with slipping ( rpm rise if I pressed it ).

On the way home I had to baby it again to get up the hill (3rd gear) to keep the rpms down . When I turned it was in first and wanted to see what it would do under power . First shifted to 2nd fine and when 2nd shifter to 3rd all went back to the same problem . So 1-2 shift was fine .

I did hear some noise from the trans today as well after up to temp .

Not sure what all this means .

I did get a tech 2 this afternoon so I will check for codes and check tcc lock up and see what it is doing .

clinebarger · 04-25-2017, 09:57 PM

Sounds like the 3-4 Clutches are going south on you.

*YoungPup1977* · 04-25-2017, 09:58 PM

It maybe time to use your new TC you have sitting in the corner with a trans rebuild. Good Luck !!!!

homemade87 · 04-26-2017, 08:01 AM

After hearing what you guys are saying about my problem I decided to get a new trans from the dealer . I am just going to swap it out because right now I dont have the time to rebuild .I was hoping a pan drop or converter would fix the problem . Needs to be back rolling this afternoon . There is no core charge so I plan to dig into the problem and see what it is . I have a friend that does build trans for our group of friends . So I will get him to look at it with me . They bring me all there ring and pinion gears for set up . We all seem to have a specialty which makes it nice when we need help .

When I get time I will find the problem and post back .

Thanks for the reply's .

04-24-2017, 06:06 PM	#1
homemade87 Registered User Join Date: Apr 2010 Location: Guntersville Alabama Posts: 1,073	4l60e tcc shudder I think I was coming home today and I have a pretty good hill to come up . Usually I push the gas just to make it come out of tc lock up ( 60 mph ) . When it came out of lock up I noticed a shudder or vibration . When it when back into lock up it quit or so it seemed. I did it again and the same thing just to confirm my suspicion and it did it again . I did it the 3rd time and same thing but the rpm started climbing to about 3,500 rpm so I soft pedaled it to the top of the hill . When I made my turn I gained some speed softly . When it went into 3rd I slowed and pulled it into 2nd and then 1st and all seemed well . Only had about a 1-1/2 miles to go . I have not had it back on the road . Fluid look really good . I flush every 50,000 miles . This is a 06 4l60e 110,000 miles . This trans does not see any hard life . I drive it like a old lady for work . My question is does this sound like a TC going bad . Just wanted some input from the trans people . If the pan looks good with no metal can I just put a TC in or do you think there might be something else wrong . Would like to here some input By the way I have a brand new stock convert in the corner I accumulated .

04-24-2017, 09:58 PM	#2
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: 4l60e tcc shudder I think When the TCC is commanded off, The TCC Enable Solenoid just dumps Converter Feed & the TCC Apply Valve returns to it's relaxed state, TCC Release is fast, simple & reliable on this unit......TCC shudder is unlikely upon release. Apply issues are quite common. Check for codes. Fluid Level? Has the filter been replaced?

04-25-2017, 04:40 AM	#4
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,587	Re: 4l60e tcc shudder I think Just curious..is that "pretty good hill" the one between guntersville and albertville?

04-25-2017, 02:07 PM	#6
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,587	Re: 4l60e tcc shudder I think Yep..that's a nice one on that side to..

04-25-2017, 07:00 PM	#7
YoungPup1977 Account Suspended Join Date: Jun 2015 Location: No longer here Posts: 1,000	Re: 4l60e tcc shudder I think The TransGo 4L60E series L shift kit fixes P1870/P0894 codes if you have them.... Also, this shift kit fixes TC Slip/Shudder. Do you have cylinder deactivation ? The TransGo shift kit comes with a new converter reg valve, spring and isolator valve. Check codes, you may not have any yet...Do you have a harsh 1-2 shift ?

04-25-2017, 08:05 PM	#8
homemade87 Registered User Join Date: Apr 2010 Location: Guntersville Alabama Posts: 1,073	Re: 4l60e tcc shudder I think Ok , I drove it today to check things out . Cold start all shifted fine but the lock up was hunting in and out . After warm up 4th was slipping and vibrate under light acceleration . When I pulled it into 3rd the same happened with slipping ( rpm rise if I pressed it ). On the way home I had to baby it again to get up the hill (3rd gear) to keep the rpms down . When I turned it was in first and wanted to see what it would do under power . First shifted to 2nd fine and when 2nd shifter to 3rd all went back to the same problem . So 1-2 shift was fine . I did hear some noise from the trans today as well after up to temp . Not sure what all this means . I did get a tech 2 this afternoon so I will check for codes and check tcc lock up and see what it is doing .

04-25-2017, 09:57 PM	#9
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: 4l60e tcc shudder I think Sounds like the 3-4 Clutches are going south on you.

04-25-2017, 09:58 PM	#10
YoungPup1977 Account Suspended Join Date: Jun 2015 Location: No longer here Posts: 1,000	Re: 4l60e tcc shudder I think It maybe time to use your new TC you have sitting in the corner with a trans rebuild. Good Luck !!!!

04-26-2017, 08:01 AM	#11
homemade87 Registered User Join Date: Apr 2010 Location: Guntersville Alabama Posts: 1,073	Re: 4l60e tcc shudder I think After hearing what you guys are saying about my problem I decided to get a new trans from the dealer . I am just going to swap it out because right now I dont have the time to rebuild .I was hoping a pan drop or converter would fix the problem . Needs to be back rolling this afternoon . There is no core charge so I plan to dig into the problem and see what it is . I have a friend that does build trans for our group of friends . So I will get him to look at it with me . They bring me all there ring and pinion gears for set up . We all seem to have a specialty which makes it nice when we need help . When I get time I will find the problem and post back . Thanks for the reply's .



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