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Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra 4x4 Questions
239 messages, Last post on Dec 01, 2009 at 1:47 PM
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| I have a 99 silverado with push button 4x4. When i push 4hi the light comes on but it doesnt supply power to my front drive shaft. If I put into 4low the transfer case gears down but the front drive shaft still doesnt get power. In other words im in 2low. I have checked the shift motor on the transfer case and it works properly and you can asume that becase it will shift to low. My question is is it my clutches inside the transfer case like i have been told or could it be something else? | |
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There is a encoder on the side of transfer case , when you kick it in , it sends a signal for the front to kick in , if the front is not kicking in , in 4 hi then check your front actuator, then if that is not the problem , it will be the encoder on the side of your actuator on your transfer case. You can check the front very easy to see if it is kicking in and out , unscrew the actuator with channal locks , leave it pluged up , can't hurt it , if it retracts back in that means the front wheel is not working, if it stays out that means the front should kick in, then all it can be is actuator encoder on transfer case. hope this helps, mine was simple , just did not have the computer to check it with. Lots of luck |
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I never had a 4x4 problem till now.i was at the beach last week and i used my 4x4 it worked great then i turned it off and drove home just fine. well today i try to put it in 4x4 low and the front tire lights that tell me its on, wound not light up. my 4x4 would not turn on it feels like its in gear my back tires have the power but my front tires wont spin i don't no why it wound mess up like that when it was working fine when i last used it? does any one no what i should start messing with...thanks for reading, get at me as soon as yall can?
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Replying to: coldshot02 (Aug 28, 2009 7:03 pm) 1. When in 4x4 is the front drive shaft rotating, have someone look under the vehicle while moving forward slowly? If so it’s not the transfer case encoder. 2. At that point I would expect it could be the actuator located on the front differential. This actuator simply pushes a pin in and out to engage the front axle. Take if off and push the 4WD button to see if it is clicking as if to move the pin in and out. |
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okay so i took a look at the front drive shaft and yes!. it still rotates but no 4x4! so im going to check out my actuator. thanks for the help! also in my truck i don't have the 4x4 button i have the stick on the ground. And if u could let me let me no if there could be any thing else that can cause this problem?
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Replying to: coldshot02 (Aug 29, 2009 2:02 pm) good luck |
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| im having trouble finding my actuator, where is it located? is there somehow you could send me some kind of diagram of the front differentials? i cant find any pictures online. beacause im more than sure that i did not blow my front axle out. i had just used it perfectly fine last week. also, if i have a stick for my 4wd does that mean it's called mechanical? | |
I have a 1994 Z71 4X4 auto. the other night I herd a soft ginding noise like the pinion shaft hitting my flywheel. Now its loud and only does it when you take off from a stop. Only for two or three seconds then just befor trans shifts into second gear. I thuoght my starter was letting the shaft hit flywheel but I had afriend ride with me and he said it was my axle but it dont sound like it s from there it sounds like a external noise and close to fly wheel locatiom more towards the right side where starter is . OH this is good when I put it in 4 high the noise goes away..please help me .
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if my actuator does not engage will that keep my 4wd light from not turning on?
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Replying to: coldshot02 (Aug 29, 2009 5:16 pm) |
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