Transmission not shifting

Asked by Feb 23, 2016 at 09:11 PM about the 2007 Chevrolet Suburban LTZ 1500 4WD

Question type: Maintenance & Repair

Starting from a stop car is at 20 mph and rpms are bt 3/4.  
In order for it to shift I have to back off the gas down to 2
mph. Then it will shift but not into 2nd shift. Running 55
mph with 4rpms and in 1st shift.  Changed transmission
fluids still n the same nothing in fluids.  Has 230000 miles.
Transfer case we did have to do a weld bc of a small whole
and leaking oil on the back of the truck.
Would the t case have something to do or is it something
else?
Oh and NO check engine light. Even had it tested to see if
the light was burned out.

3 Answers

18,810

The only thing you can try now is add some Lucas Transmission Stop Slip or there are other products that say they can fix transmission problems but I have used Lucas before and it worked for me. Do not over fill transmission remove same amount of fluid as bottle of product. If this does not work time to get some transmission work done.

Transmission, most likely. With those miles and weight of the vehicle its tired, salvage tested trans would be my choice.

19,845

I'm sorry to tell you this, but, not shifting from 1st to 2nd is a classic transmission problem, very typical. If you're lucky, it could just be a bad speed sensor. Look that up, and check that out. I had a bad speed sensor on my 1995 Honda Accord and it didn't shift properly, but, it was not the transmission. Good luck.

Your Answer

Add photo

Related Questions

  • Transmission not shifting 3 answers

    Starting from a stop car is at 20 mph and rpms are bt 3/4. In order for it to shift I have to back off the gas down to 2 mph. Then it will shift but not into 2nd shift. Running 55 mph with 4rpms a...

    2007 Chevrolet Suburban LTZ 1500 4WD

    -

    Maintenance & Repair

  • 1999 Chevy Suburban, 5.7 L, automatic transmission, 147,300 miles, not shifting into OD 1 answer

    My 1999, 4 x 4, 5.7 litre, Chevy Suburban 1500, 147,600 miles will not shift into overdrive. No clunking noises, no slipping, tranny fluid clean and no smell, no shifting so hard it jerks you, e...

    1999 Chevrolet Suburban K1500 LT 4WD

    -

    Maintenance & Repair

  • transmission not shifting correctly 1 answer

    Transmission was noisy between shifts and finally stopped working. Eventually got it to shift 1-3 manually and only 1st gear on automatic. Had to tow. Any suggestions on what is wrong.

    2008 Chevrolet Equinox Sport

    -

    Maintenance & Repair

  • Transmission ?? 3 answers

    I have a 2001 Chevy Suburban. Just put a brand new transmission in back in January. Yesterday going down the interstate it started acting up. It was hard to drive. It was like I couldn't catch any ...

    2001 Chevrolet Suburban LT 1500

    -

    Maintenance & Repair

  • Transmission 2 answers

    I need another transmission on my 2002 Chevy suburban. Can i use a old school 400 turbo in my 02 suburban?

    2002 Chevrolet Suburban

    -

    Maintenance & Repair

Suburban

Looking for a Used Suburban in your area?

CarGurus has 19,512 nationwide Suburban listings starting at $1,800.

ZIP:

Search Chevrolet Suburban Questions

Chevrolet Suburban Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 990
#2 Eric Fritz
Eric Fritz
Reputation 890
#3 Neal Turner
Neal Turner
Reputation 850
View All

Related Models For Sale

Used GMC Yukon XL
209 Great Deals out of 12,381 listings starting at $2,999
Used Chevrolet Tahoe
556 Great Deals out of 31,361 listings starting at $1,500
Used GMC Yukon
379 Great Deals out of 19,293 listings starting at $2,000
Used Ford Expedition
438 Great Deals out of 24,826 listings starting at $1,150
Used Cadillac Escalade ESV
111 Great Deals out of 5,434 listings starting at $1,995
Used Cadillac Escalade
195 Great Deals out of 10,971 listings starting at $3,200
Used Chevrolet Silverado 1500
1,769 Great Deals out of 181,161 listings starting at $250
Used Chevrolet Silverado 2500HD
301 Great Deals out of 28,173 listings starting at $2,495
Used Toyota Sequoia
137 Great Deals out of 5,478 listings starting at $1,500
Used Ford F-150
2,068 Great Deals out of 207,301 listings starting at $1,499
Used Lincoln Navigator
103 Great Deals out of 5,837 listings starting at $1,900
Used Ford Explorer
926 Great Deals out of 70,243 listings starting at $997
Used Nissan Armada
136 Great Deals out of 8,391 listings starting at $2,985
Used Dodge Durango
266 Great Deals out of 21,282 listings starting at $1,499

Used Cars For Sale

2016 Chevrolet Suburban LTZ 1500 4WD For Sale
3 Great Deals out of 512 listings starting at $46,380
2015 Chevrolet Suburban LTZ 1500 4WD For Sale
3 Great Deals out of 432 listings starting at $32,995
2014 Chevrolet Suburban LTZ 1500 4WD For Sale
3 Great Deals out of 130 listings starting at $24,999
2013 Chevrolet Suburban LTZ 1500 4WD For Sale
7 Great Deals out of 205 listings starting at $21,907

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.