4L60E only takes off in 2nd or 3rd

ngrimm · 08-28-2007, 03:03 PM

94 Chevrolet 1/2 4X4. I determined thru searching this site that the shifting is electronically controlled but we suddenly have a problem with the truck not shifting to 1st gear when it slows down or stops. As a result if you put it in drive it starts out in 3rd and if you move the selector to 1st or 2nd it will start out in 2nd. What I don't know is if the electronics also control which gear you start out in . Thankyou for your help. Norm

suckcreekoffroad · 08-28-2007, 07:49 PM

Sounds like the shift silenoid the tranny isnt working .You can oull the codes and it will tell you withc one isn't working

KWTMECH · 08-28-2007, 08:09 PM

Disconnect the battery for about 5 minutes then try it again

sha_ba_do_bang · 08-28-2007, 08:15 PM

You need to hook it up to a REAL scanner(not autozone or walmart, a $7000 snapon or otc) Then see if the computer is commanding 1st or second gear, then you can determine if the problem is internal or external.

I have actually seen a bad MAF sensor causing those symptoms(i'm not saying this is your problem, i'm just showing you that tons of things could effect the shifting)

Brendan

08-28-2007, 03:03 PM	#1
ngrimm Registered User Join Date: Jun 2005 Member # 48718 Location: Medford Oregon Posts: 19	4L60E only takes off in 2nd or 3rd 94 Chevrolet 1/2 4X4. I determined thru searching this site that the shifting is electronically controlled but we suddenly have a problem with the truck not shifting to 1st gear when it slows down or stops. As a result if you put it in drive it starts out in 3rd and if you move the selector to 1st or 2nd it will start out in 2nd. What I don't know is if the electronics also control which gear you start out in . Thankyou for your help. Norm __________________ 92 Tracker auto 4x4 Soft top

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08-28-2007, 07:49 PM	#2
suckcreekoffroad Registered User Join Date: Aug 2007 Member # 98730 Location: Suckcreek Mtn Tn Posts: 62	Sounds like the shift silenoid the tranny isnt working .You can oull the codes and it will tell you withc one isn't working

08-28-2007, 08:09 PM	#3
KWTMECH Registered User Join Date: Sep 2002 Member # 13786 Location: moved 7 miles to colfax, ca. Posts: 3,817	Disconnect the battery for about 5 minutes then try it again

08-28-2007, 08:15 PM	#4
sha_ba_do_bang Registered User Join Date: Mar 2006 Member # 69347 Posts: 237	You need to hook it up to a REAL scanner(not autozone or walmart, a $7000 snapon or otc) Then see if the computer is commanding 1st or second gear, then you can determine if the problem is internal or external. I have actually seen a bad MAF sensor causing those symptoms(i'm not saying this is your problem, i'm just showing you that tons of things could effect the shifting) Brendan