Changed transmission oil and filter now no fourth gear

2004 GMC ACADIA
257,000 MILES • 4.2L • 6 CYL • 2WD
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MOHAMED FATHY
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Can you please help?
I changed gear oil and filter in my 2004 Envoy and now no fourth gear. First, second and third are okay, just no fourth gear.
Can you guide me please?
Mar 18, 2017 at 8:46 PM
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HMAC300
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recheck your work you may not have put the seal for filter in right or filter and it is sucking air. See pictures.
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Mar 19, 2017 at 8:56 AM
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MOHAMED FATHY
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thnx alot was very helpful
Oct 8, 2017 at 5:46 PM
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MOHAMED FATHY
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Hi
may you help me

in my car envoy 2004 delaying start
and the scanner give code p0335
so i replaced the cranckshaft position sensor then erased the code
but still have the same issue

code
delaying start
Oct 8, 2017 at 5:51 PM
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STRAILER
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Please post your question here

https://www.2carpros.com/questions/new

Cheers, Ken
Oct 10, 2017 at 11:40 AM