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2005 gmc envoy_sle_xl
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7 Posts
Discussion Starter · #1 ·
when i try to go into 4 lo , the light blinks a few times and then reverts back to 4 hi ( 4lo light blinks - 4hi always steady )

any thoughts?

2005 envoy-i6 3.42
 

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2004 gmc
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26,181 Posts
You need to be in Neutral, not drive or park. There's an interlock. And if you're coasting in Neutral, you have to be going less than 5 MPH.

If that's not it, you have a problem with your encoder motor or transfer case. How many miles, and have you ever changed the transfer case fluid or checked the level? When was the last time you exercised the system to see if it worked in all modes?
 

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Registered
2005 gmc envoy_sle_xl
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7 Posts
Discussion Starter · #3 ·
You need to be in Neutral, not drive or park. There's an interlock. And if you're coasting in Neutral, you have to be going less than 5 MPH.

If that's not it, you have a problem with your encoder motor or transfer case. How many miles, and have you ever changed the transfer case fluid or checked the level? When was the last time you exercised the system to see if it worked in all modes?
Thanks - I have been trying to shift into 4 lo in park - will try in neutral

only have the envoy 10 weeks - it has 48,000 miles
 
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