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04 Silverado going to 4WD while moving issue by ohioindy
Started on: 11-06-2014 06:54 AM
Replies: 3 (104 views)
Last post by: BrittB on 12-09-2014 05:03 PM
ohioindy
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Report this Post11-06-2014 06:54 AM Click Here to See the Profile for ohioindyClick Here to visit ohioindy's HomePageClick Here to Email ohioindySend a Private Message to ohioindyEdit/Delete MessageReply w/QuoteDirect Link to This Post
I have an 04 Silverado 2500HD gas. It has the floor shifter for the 4DW. I have always been able to go into 4WD while driving, I’ve always kept it under 40 and let off the gas then pull the shifter into 4WD HI. I haven’t used the 4WD for almost 6 months so yesterday I decided to try it. I let off the throttle pull the shifter down and it started to grind. I came to a stop at the next town pulled down on the shifter and it went into 4WD. I was going about 25 MPH and shifted into 2WD no problem. Tried to go back to 4WD when moving and it started to grind. Any idea as to why now I have to be stopped to go into 4WD?

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84fiero123
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Report this Post11-17-2014 07:20 PM Click Here to See the Profile for 84fiero123Click Here to Email 84fiero123Send a Private Message to 84fiero123Edit/Delete MessageReply w/QuoteDirect Link to This Post
4 WD is electrically done in the front axel pumpkin, the solenoid may be gone you can check it by removing the solenoid and have someone else put it in 4 WD with the ignition on and watch the solenoid. They do all the time and are expensive parts at the dealers, parts stores are cheaper and some places even sell a mechanical cable to fix it so the electronic part is never a problem again.

Steve

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[This message has been edited by 84fiero123 (edited 11-17-2014).]

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Report this Post11-18-2014 11:55 AM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
I never try on the fly 4wd even if its supposed to be able to. But then I dont have a vehicle that new, maybe things have improved?
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BrittB
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Report this Post12-09-2014 05:03 PM Click Here to See the Profile for BrittBSend a Private Message to BrittBEdit/Delete MessageReply w/QuoteDirect Link to This Post
Sounds like the servo could be hanging up. They can go out too but for now you may want to consider full stop shifts.
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