04 Silverado going to 4WD while moving issue (Page 1/1)
ohioindy
NOV 06, 06:54 AM
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?
------------------ Factory Stock The way God intended it to be.
84fiero123
NOV 17, 07:20 PM
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
------------------ Technology is great when it works, and one big pain in the ass when it doesn't
Detroit iron rules all the rest are just toys.
[This message has been edited by 84fiero123 (edited 11-17-2014).]
2.5
NOV 18, 11:55 AM
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?
BrittB
DEC 09, 05:03 PM
Sounds like the servo could be hanging up. They can go out too but for now you may want to consider full stop shifts.
