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Thanks
Jiggs
Jiggs
Can there be a short somewhere?
My situation: a '96 Sierra 5.7l automatic with push button shift, 106k miles, well cared for, but I've only owned this for 14k miles, so am not very familiar with it. Just recently noticed when I shift to 4H or 4L, the light just blinks, and doesn't engage the front wheels. Shifting to 4L does transfer to low range, however. From previous posts, this points to a switch, fuse, connectors or an actuator problem. Because the switch works to 2H (solid light) and to the low range (4L), and the wiring appears ok, I'm thinking front differential actuator or fuse. Can someone tell me where that fuse is, and/or if I should go directly to a new actuator?
I followed the link from Bruce48532 to the parts supply, but the replacement actuator listed doesn't show it's for a 1996. Will the one listed still work? I presume the existing is an older thermal unit, and is the listed one a direct replacement?
Thanks a lot for any replies,
Alan
thannks
I recently purchased a 2500 HD Duramax Diesel with Allison transmission - it also came with 4x4 and has around 60K miles. The only reason I got this truck was to haul my horses. However, the darn thing did not come with an owner's manual. I was playing with the 4x4 switch the other day and I have 4Hi and 4Lo and 2H. I normally drive in 2H and I can also switch the truck to 4Hi. When I try to switch to 4Lo, the light just blinks but it eventually comes back to 2H. Having no previous experience with 4x4 vehicles, this does not sound right to me. Can anyone explain what the 4Hi/Lo are supposed to mean and what is the expected effect of pressing these buttons? (sorry for the dumb questions)
In addition, when I switch to 4Hi, and do sharp, slow turns in gravel, the tires move very slowly and feel as if they are "skipping" in the turn (for lack of better explanation). Should 4x4 feel any different than 2wd on regular gravel (for example)?
Thanks for any help!
Ognen
MY 1999 REPAIR HISTORY
12/01/08 - TRANSFER CASE REBUILD
9/1/08 - FUEL PUMP @ 105,000 MILES COULD HAVE BEEN AVOID IF I CHANGED THE FUEL FILTER
11/1/08 - ENCODER MOTOR
11/1/08 - WHEEL BEARINGS
6/1/08 - 4WD ACTUATOR (FRONT DIFFERENTAL)
6/1/07 - FUEL PRESSURE REGULATOR
9/1/06 HEAT SENSOR RESISTOR – FOR CAB HEAT ( FAN WOULD NOT WORK ON LOW SETTING
11/1/06 - 4WD SELECTOR SWITCH (DASH)
4/1/05 - FRONT LEFT TIE ROD
now the truck is sometimes ok and sometimes stuck in nuetral even if i never pushed a button
I have a 2000 GMC Sierra with very low mileage which just today started the same 4wd symptoms as yours.
If GM would have attempted to make every vehicle model continually better each model year they would have ended up with super reliability and quality and they could have Americans lining up to buy their products. Instead they continued to do the same thing they've done for 50 years and never make product adjustments or improvements during the 5 or more years of a model run. The customers are forced to deal with the expense and and inconvenience and poor resale.
The CEO (Wagner, etc) only worried about his jets, bonuses and bennies, not making the best car. Sorry for the rant but every time I think about tax payers bailing them out it ticks me off but not as much as when I think of their incompetent executive management and lack of priorities .
First of all, to shift into/out of 4Lo you have to be stopped and put the transmission in neutral. And I would recommend to back up several feet after you shift out of 4Lo if you are able to to ensure that the front end is completely disengaged.
When ever you are in 4X4 mode and you are have the wheel cranked all the way right or left, your front end will feel like it is binding or "skipping" if you prefer, which is perfectly normal. It will not feel like a 2wd because it a 2wd has no drive line up front.
:shades:
Why add additional ground? And where were they added?
There were different solutions as to why 4WD couldn't be engaged but no one ever did what you described so no solution could be offered. However, I have the factory manual for your year and could look through the trouble shooting section on 4WD.
Thanks for your reply.
what year truck ?
list line by line everything you have done with respect to the 4wd
Thanks again
Thanks all for your help
Is there any way to find out if it was working prior to the salvage?
I'll start looking up the trouble shooting for the electrical controls.
Thanks
Thanks all for trying to help.
Someone else told me that would be hard on the transfer case, and someone ELSE told me it would be fine as long as i'm only city-driving, and someone ELSE told me there would be no issues whatsoever as long as i'm not taking her offroad.
So my question is, who the hell is right? Lol..I've been driving it like this, for8 months and have had no issues, but need to know if i CAN take her a few hours out of the city on the highway at reasonable speeds without ending up stranded. Any and all info is appreciated..thx
Have a nice day