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2000 Chevy s10 4x4, 4.3 engine, 195000


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dlockard
New User

Oct 27, 2014, 12:42 PM

Post #1 of 4 (2367 views)
2000 Chevy s10 4x4, 4.3 engine, 195000 Sign In

I am able to shift into 4h only when in park. When in drive, when i press the 4hi button nothing happens. Also, I have no vent controls. all positions go to the defrost and dash vents.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Oct 27, 2014, 1:31 PM

Post #2 of 4 (2358 views)
Re: 2000 Chevy s10 4x4, 4.3 engine, 195000 Sign In

Check the vacuum hoses up near the master cylinder that go to the vacuum reservoir inside the driver's fender.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


dlockard
New User

Oct 27, 2014, 1:36 PM

Post #3 of 4 (2354 views)
Re: 2000 Chevy s10 4x4, 4.3 engine, 195000 Sign In

Thank you, I will certainly try this and let you know if it works. At wits end.


dlockard
New User

Oct 29, 2014, 12:05 PM

Post #4 of 4 (2306 views)
Re: 2000 Chevy s10 4x4, 4.3 engine, 195000 Sign In

Wow!you are a genius! Found the hose and it was collapsed. 4wd working perfectly! Two trips to the local mechanic and no results. Try this one, I get only heat through the defrost and dash vents. The floor vent and the defrost\floor vents do not open. I have replaced the actuators on the transfer case and the one beneath the battery box with no results. Thank you.






 
 
 






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