Question about 1994 GMC Suburban

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4l60e slips right over 2nd gear whats the deal with it

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Wish someone would ask question about some real cars like ford peugeot seat skoda fiat ,moskovitch ,anyway your gearbox is playing up and although i have never seen a surburban i would say either your solonoid/relay inside the box isnt working or a fault with the control computer .but without a ggod look and a drive its difficult to pinpoint it

Posted on Aug 20, 2010

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2001 Chevy S10 4x4 4L60E transmission works perfectly until 50MPH then I lose 3rd and 4th gear, 1st, 2nd and reverse are normal. Never happenend before, been parked since. Fluid is clean. Any ideas?


Are there any DTC's - diagnostic trouble codes ?in the PCM / BCM ? You have third an fourth below 50 mph but above 50 it down shifts to 2nd gear ,is this what your saying or you don't have 3rd or 4th gears at all ? Which engine did yours come with ? 2.2 L or 4.3 L You trans can set several DTC'S an not all will turn on the check engine light .
DTC B2722 (4.3 L) DTC P0218 (2.2 L) DTC P0218 (4.3 L) DTC P0502 (2.2 L) DTC P0502 (4.3 L) DTC P0503 (2.2 L) DTC P0503 (4.3 L) DTC P0705 (2.2 L) DTC P0706 (4.3 L) DTC P0711 (2.2 L) DTC P0711 (4.3 L) DTC P0712 (2.2 L) DTC P0712 (4.3 L) DTC P0713 (2.2 L) DTC P0713 (4.3 L) DTC P0719 (2.2 L) DTC P0719 (4.3 L) DTC P0724 (2.2 L) DTC P0724 (4.3 L) DTC P0740 (2.2 L) DTC P0740 (4.3 L) DTC P0741 (4.3 L) DTC P0742 (2.2 L) DTC P0742 (4.3 L) DTC P0748 (2.2 L) DTC P0748 (4.3 L) DTC P0751 (2.2 L) DTC P0751 (4.3 L) DTC P0752 (4.3 L) DTC P0753 (2.2 L) DTC P0753 (4.3 L) DTC P0756 (2.2 L) DTC P0756 (4.3 L) DTC P0757 (4.3 L) DTC P0758 (2.2 L) DTC P0758 (4.3 L) DTC P0785 (2.2 L) DTC P0785 (4.3 L) DTC P1810 (2.2 L) DTC P1810 (4.3 L) DTC P1860 (2.2 L) DTC P1860 (4.3 L) DTC P1870 (2.2 L) DTC P1870 (4.3 L) DTC P1875 (4.3 L) .
Shift Pattern This category contains the following topics:
?€¢
One forward gear only


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Two forward gears only


?€¢
Gear missing or slipping


?€¢
No upshift or slipping upshift


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No downshifts


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Non-First gear start


?€¢
Refer to First Gear Range Only - No Upshift .


?€¢
Refer to Third Gear Only .


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Refer to Second/Third Gear Only or First/Fourth Gears Only .


?€¢
Refer to Slips in First Gear .


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Refer to Slipping or Harsh 1-2 Shift .


?€¢
Refer to No 2-3 Shift or 2-3 Shift Slips, Rough or Hunting .


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Refer to No 3-4 Shift, Slips or Rough 3-4 Shift .


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Refer to No Part Throttle or Delayed Downshifts .


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Refer to Second Gear Start .

Feb 18, 2016 | Cars & Trucks

1 Answer

95 Chevy 1500 with the 4l60E.wasn't driven for 5 years it won't shift out of 2nd gear,oncein 3rd gear it doesn't slip. fluid level is about 3-4 qts over. Any ideas?


Over filled trans. will foam and cause shifting problems. You can't diagnose until the fluid is at the correct level. Check both sides of the dipstick with the engine running(ideally in Drive) for best accuracy. Make sure you have a helper stepping on the brake so you don't get run over by your own truck.

Oct 16, 2015 | Cars & Trucks

1 Answer

Transmission slipping in 2nd gear


1 Ck A/T fluid level & quality
2 Scan/ck for code(s)
3 With scan tool connected,road test vehicle/Ck parameters....
....time for a pro !!

Apr 06, 2014 | GMC Sierra Cars & Trucks

1 Answer

I own a 1998 Chevy Blazer 4wd that is on its 3rd transmission and I'm having the same issue where when shifting from 2nd to 3rd gear it's slipping badly my rpm's rev up to 3500 and I have to take my foot...


this is a known issue with the gm 4L60E transmission. the valve body in transmission causes this. if it is wore, then less fluid is sent to shift selonoids. thus causing torque convertor not to lock up, and this causes slipping. if it slips 2 consecutive trips then the transmission detects this and should turn on check engine light. ( p1870 ). you can see if the tcc solinoid is bad. but if not its usually the valve body in tranny.

Dec 15, 2010 | 1998 Chevrolet Blazer

2 Answers

Chevy transmission hangs in 2nd,


It just holds 2nd forever. Is the 1-2 shift point high?

Mar 24, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

4l60e no forward or reverse gears operating


It sounds like your torque converter or the pump is broken.

Jan 12, 2009 | 1993 GMC Sierra K1500

2 Answers

Replacing a 4L60E with a 700R4?


Not with good results, the 4L60E is run by your ecm, the 700R4 while looking close to the same does not relie on your ecm for commands,it relies on a cable to regulate your line pressure.

Jan 01, 2009 | 1994 Chevrolet K1500

1 Answer

4L60E slipping and not locking up


Very well could be taht the Computer is not recieving the Shift codes Correctly. Just for an Easy Solution, Remove the ECM Fuse from the Fuse panel for 2 or 3 Minutes to Reset the Computer and let me know what you get.

Dec 31, 2008 | 1994 Chevrolet K1500

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