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#4655062 - 02/03/18 04:21 PM Avalanche 4wd
spasm3 Offline


Registered: 05/30/10
Posts: 8646
Loc: 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.


Edited by spasm3 (02/03/18 04:25 PM)
_________________________
13 elantra 68k 5w30 QSUD
03 chevy avalanche76k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 3900 miles m1 0w20/0w40 mix

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#4655093 - 02/03/18 04:49 PM Re: Avalanche 4wd [Re: spasm3]
krismoriah72 Offline


Registered: 02/16/09
Posts: 1518
Loc: wv
I have an 03 suburban..mine did the same thing. I found a broken wire near the transfer case..

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#4655237 - 02/03/18 07:56 PM Re: Avalanche 4wd [Re: spasm3]
SkipsterPA Offline


Registered: 11/08/13
Posts: 4
Loc: 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.
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1993 Prizm
2003 Sable
2004 Avalanche
2016 Elantra

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#4655995 - 02/04/18 02:21 PM Re: Avalanche 4wd [Re: SkipsterPA]
spasm3 Offline


Registered: 05/30/10
Posts: 8646
Loc: 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 68k 5w30 QSUD
03 chevy avalanche76k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 3900 miles m1 0w20/0w40 mix

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#4656068 - 02/04/18 03:37 PM Re: Avalanche 4wd [Re: spasm3]
spasm3 Offline


Registered: 05/30/10
Posts: 8646
Loc: North Carolina
That did not work, so i'm going to replace the transfer case motor.
_________________________
13 elantra 68k 5w30 QSUD
03 chevy avalanche76k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 3900 miles m1 0w20/0w40 mix

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#4656288 - 02/04/18 07:42 PM Re: Avalanche 4wd [Re: spasm3]
SkipsterPA Offline


Registered: 11/08/13
Posts: 4
Loc: 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

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#4656297 - 02/04/18 07:52 PM Re: Avalanche 4wd [Re: SkipsterPA]
spasm3 Offline


Registered: 05/30/10
Posts: 8646
Loc: 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 68k 5w30 QSUD
03 chevy avalanche76k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 3900 miles m1 0w20/0w40 mix

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