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Avalanche 4wd #4655062
02/03/18 05:21 PM
02/03/18 05:21 PM
Joined: May 2010
Posts: 9,045
North Carolina
spasm3 Offline OP
spasm3  Offline OP
Joined: May 2010
Posts: 9,045
North Carolina
Used my 4wd in last in december, i remember it was slow to engage. It will not engage now. the 4wd light just blinks. I checked cleaned and reinstalled the ground bolts behind the drivers front wheel well. That made no difference.

Do i need to replace the transfer case actuator motor? When i press the 4wd or 4wd low button, i don't hear anything change no sounds.

I know little about 4wd systems. The wiring connectors all look good.

Last edited by spasm3; 02/03/18 05:25 PM.

13 elantra 70k 5w30 QSUD
03 chevy avalanche79k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 5600 miles m1 0w30
Re: Avalanche 4wd [Re: spasm3] #4655093
02/03/18 05:49 PM
02/03/18 05:49 PM
Joined: Feb 2009
Posts: 1,578
wv
krismoriah72 Offline
krismoriah72  Offline
Joined: Feb 2009
Posts: 1,578
wv
I have an 03 suburban..mine did the same thing. I found a broken wire near the transfer case..

Re: Avalanche 4wd [Re: spasm3] #4655237
02/03/18 08:56 PM
02/03/18 08:56 PM
Joined: Nov 2013
Posts: 4
Pittsburgh
SkipsterPA Offline
SkipsterPA  Offline
Joined: Nov 2013
Posts: 4
Pittsburgh
Could be your switch or motor. The motor on my 04 went a couple years ago. There's some good info on the forums at Chevyavalanchefanclub.com. It's apparently a common issue with this body style. I think the solder joints in the switch tend to fail but can be easily reflowed though.


1993 Prizm
2003 Sable
2004 Avalanche
2016 Elantra
Re: Avalanche 4wd [Re: SkipsterPA] #4655995
02/04/18 03:21 PM
02/04/18 03:21 PM
Joined: May 2010
Posts: 9,045
North Carolina
spasm3 Offline OP
spasm3  Offline OP
Joined: May 2010
Posts: 9,045
North Carolina
Thanks! I saw some posts about what you mentioned. So i'm pulling the switch and i will try the re-flow of solder!


13 elantra 70k 5w30 QSUD
03 chevy avalanche79k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 5600 miles m1 0w30
Re: Avalanche 4wd [Re: spasm3] #4656068
02/04/18 04:37 PM
02/04/18 04:37 PM
Joined: May 2010
Posts: 9,045
North Carolina
spasm3 Offline OP
spasm3  Offline OP
Joined: May 2010
Posts: 9,045
North Carolina
That did not work, so i'm going to replace the transfer case motor.


13 elantra 70k 5w30 QSUD
03 chevy avalanche79k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 5600 miles m1 0w30
Re: Avalanche 4wd [Re: spasm3] #4656288
02/04/18 08:42 PM
02/04/18 08:42 PM
Joined: Nov 2013
Posts: 4
Pittsburgh
SkipsterPA Offline
SkipsterPA  Offline
Joined: Nov 2013
Posts: 4
Pittsburgh
If you can get the driveshaft off, it's easier. I did mine without dropping it but it was a pain. Kind of tight quarters but do-able.


1993 Prizm
2003 Sable
2004 Avalanche
2016 Elantra
Re: Avalanche 4wd [Re: SkipsterPA] #4656297
02/04/18 08:52 PM
02/04/18 08:52 PM
Joined: May 2010
Posts: 9,045
North Carolina
spasm3 Offline OP
spasm3  Offline OP
Joined: May 2010
Posts: 9,045
North Carolina
Originally Posted By: SkipsterPA
If you can get the driveshaft off, it's easier. I did mine without dropping it but it was a pain. Kind of tight quarters but do-able.


Thanks! I was planning on dropping it. But since you did it around it, i will try that first!


13 elantra 70k 5w30 QSUD
03 chevy avalanche79k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 5600 miles m1 0w30

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