1999 suburban wont go outa 4wd

120

Asked by Jun 20, 2014 at 08:56 PM about the 1999 Chevrolet Suburban K1500 4WD

Question type: Maintenance & Repair

I got a 1999 suburban put a new (used) tranny and a transfer case put a new motor on the
transfer case. The problem is when it will go in to 4 high when you start up the truck u can
change it to auto 4wd or 4 low if you try to change it to 2 hi it will go to 4low and wont
come out of it unless you disconnect the battery .  what is wrong can any 1 help got over
1800 $$  trying to get this right  thanks

4 Answers

3,630

The front axle engagement system might be stuck in 4WD mode. If Im not mistaken, its a vacuum driven system and the vacuum hoses frequently crack of fall off the connections. Check all the hoses and connections in the front axle and youll probably find the issue there. There may also be a vacuum diaphragm under the battery which pulls a lever to engage the front axle. Disconnect it and make sure it moves freely. If that is the issue, you can replace those parts or there is a manual front axle actuator cable you can buy to avoid dealing with this again.

2 of 2 people found this helpful.
Best Answer Mark helpful
120

i tryed a new actuator and still same result

1 of 1 people found this helpful.
120

UPDATE: took it to a transmission shop and they gave me the following codes, C0310 Motor A/B Circuit open C0323 Transfer Case lock circuit low C0327 Encoder Circuit Extensive noise coming out of the transfer case will need another transfer case. so i bought another case today and still the same problem will not go in to 2 High when you start the truck it goes to 4 high if you try to put it in 2 H it will go to 4 low and you got to undo the battery to get it to reset back in to 4 high can some 1 please help me i got over 2 grand in this

2 of 2 people found this helpful.
120

does any 1 even use this thread anymore i need help single mother of 6 can some 1 help me

2 of 2 people found this helpful.

Your Answer

Suburban

Looking for a Used Suburban in your area?

CarGurus has 23,368 nationwide Suburban listings starting at $2,895.

ZIP:

Chevrolet Suburban Experts

  • #1
    Andrew Olsen
    Reputation
    1,110
  • #2
    Neal Turner
    Reputation
    1,020
  • #3
    Eric Fritz
    Reputation
    1,010
View All

Related Models For Sale

Used GMC Yukon XL
271 Great Deals out of 13,420 listings starting at $1,750
Used Chevrolet Tahoe
801 Great Deals out of 40,245 listings starting at $1,799
Used GMC Yukon
494 Great Deals out of 19,449 listings starting at $2,495
Used Ford Expedition
469 Great Deals out of 20,388 listings starting at $2,300
Used Cadillac Escalade
279 Great Deals out of 12,222 listings starting at $2,995
Used Chevrolet Silverado 1500
2,664 Great Deals out of 158,108 listings starting at $1,850
Used Ford F-150
2,998 Great Deals out of 231,248 listings starting at $1,300
Used Lincoln Navigator
102 Great Deals out of 3,679 listings starting at $2,900
Used Dodge Durango
262 Great Deals out of 24,896 listings starting at $1,500
Used Ford Explorer
1,072 Great Deals out of 67,953 listings starting at $1,200

Used Cars For Sale

2018 Chevrolet Suburban For Sale
4 Great Deals out of 7,785 listings starting at $41,100
2017 Chevrolet Suburban For Sale
144 Great Deals out of 5,149 listings starting at $35,899
2016 Chevrolet Suburban For Sale
35 Great Deals out of 1,314 listings starting at $32,499
2015 Chevrolet Suburban For Sale
60 Great Deals out of 1,813 listings starting at $21,950
2014 Chevrolet Suburban For Sale
31 Great Deals out of 557 listings starting at $13,495

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.