Re: when in auto or 4 hi trans grinds... put int 4 lo and...
That will be either the transfer case or the actuator (if it's a push-button type).
There's a common problem with the actuator that's easy to fix: remove it and open it up, and look for a metal pin with a nylon sleeve over it. What happens is the nylon sleeve gets brittle and breaks and the actuator can't engage properly. Use a piece of 1/4 rubber fuel line to replace the plastic sleeve and you're done.
If it's not that then you'll need to pull the transfer case. You can rebuild or replace it: what I did was find a junkyard T-case and then used parts from the two units to build one that worked.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
you can shift on the fly from 2 hi to 4 hi at any time as long as you are not under power or in other words on the gas. Hold at a steady speed or let up on gas pedal a little bit then shift, DO NOT shift truck when vehicle is speeding up or taking off. Also do not shift when wheels are spinning or when you are turning a corner. The same goes for shifting from 4 hi to 2 hi. ** Now to shift into 4 lo the truck should be stopped and put trans shift into nuetral then shift transfercase into 4 lo, and never exceed 25 mph in 4 lo position !!!!!!! To shift out of 4 lo and go to 4 hi or 2 hi stop vehicle and shift trans into nuetral then make your 4x4 shift then put trans into forward or reverse gear and VROOOOOM your on your way. Remember to NEVER and i mean NEVER shift into 4 lo while vehicle is moving forward or reverse as you will do serious damage to any and all parts of drive train. You should not run 4x4 at all unless you need to pull something where you need extra traction like a boat out of water,a stuck vehicle,or if roads are slippery, or muddy. also don't be alarmed as sometimes when in 4 wheel drive and you turn corners you will notice a binding or jerking motion, this is normal and if this is occurring i would recommend going back to 2 hi position. HAPPY TRAILS to you with the new toy. I only buy vehicles with 4x4 and have never owned a 2 wheel drive in my 31 yrs of driving. I love the idea that i have extra power and traction options when i need it,the only bad thing is your boss says " what do you mean you can't make it in,you have a 4 wheel drive!
it is most likely an automatic awd, 4 hi is full time 4 wheel drive, 4 lo is full time 4 wheel drive but at a very low gear ratio and should not exceed 25 mph or could cause damage. and DO NOT shift into 4 lo while vehicle is in motion. Auto is a 2 wheel drive but automatically engages into 4 wheel drive under heavy acceleration.
Try putting the truck into reverse before going into neutral, then put it into 4-lo. Sounds like the transfer case linkage might need to be adjusted, nothing major. I've owned NUMEROUS Jeeps, and every one with an auto tranny was a PITA to get into 4-lo. And if it isn't engaged completely, it will pop out every time.
If its a whining type noise when cold, the trans filter may be plugged. replace the filter ans examine the bottom of the pan, if it has a lot of debris in the pan, and the filter is plugged, replacing the filter will help, but you will need trans work in the future.
You say 'new' truck, 09? or new used? I have had 3 Fords, 3 w/ manual trans. case, if you go into 4x4 Low range, you must come to a complete stop before shifting the trans. case to 4x4 mode, and I always put trans (automatic) in neutral before slipping into 4x4, it engages smoothly, no grinding. 4x4 high range can be put in while moving, but I would let off the gas pedal, shift to 4x4 high range, then resume accelerating. If there is any grinding going on doing it as above, something isn't right. Check the trans. case fluid level also, to make sure that's not an issue.
I would check out the hubs and the drive axles first before changing the transfer case but I would do a differential service also if you never had it done since you have owned the car a 91 aerostar that is all wheel drive I thought I had the same problem and I replaced both hubs and one drive axle
I have the same problem with my 94 explorer with a manual transmission, Just replaced the trans a month ago because of gear failure and now It's slipping out of gear when the engine isn't under load aka Coasting, was Told By a Really good Trans Guy that this is a failure in the Linkage in the transfer case am about to tear into mine tho It's way over my technical ability but will repost here after I get it torn apart with potential prices for worn parts for the do it yourselfer, And Has to be the issue I hope because the gears in the transmission are in pristine condition the other reason for suspecting the transfer case is that when my trans is slipping and making that weird Rattle Clatter sound coming from the trans if I put it in 4x4 low it drives great even tho the front wheels aren't pulling since I have the front drive shaft off at the moment,, Well Here goes Nothing Wish me luck on this teardown gonna need it..