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Ford Ranger 4x4 Problems

122 messages,  Last post on Nov 22, 2009 at 12:15 PM

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#90 of 122 Re: 4 wheel dash lights say im in 4 wheel but front wheels noy pulling [shawnranger99] by spyac3 Jan 03, 2009 (6:14 pm)
Replying to: shawnranger99 (Jan 03, 2009 5:09 pm) I would say if you have mechanical ablility they shouldn't be difficult to install, once they are in if you leave them in the locked position it would be no different then the previous fix i mentioned previously with the website link I provided showing how to bypass the Pulse vacuum system which is basically how the newer models function.   You only need to lock them in when you want 4x4 and you will still need to use the switch on the dash to engage 4 wheel hi and 4 wheel lo.
#91 of 122 4x4 locking in and out while using it. by 2006ranger Jan 17, 2009 (8:05 am)
hi i have a 2006 ford ranger supercab 4x4. i had a problem with my four wheel drive locking in and out when using it in the snow. i took the truck to the local dealer and they told me that one tire was wore down more than the rest and there is a sensor that picks up that tire and it sends a signal to the computer telling it that the onetire is spinning more than the rest or that it is stuck so there for it causes your four wheel drive to not work properly. the only way to fix the problem, is when you need a tire or tireson your truck, its a must to replace all 4 tires or you will have this problem. this is not a bulshit lie, i have tested it with used tires from tire shops and i had all different tires all the way around the truck and the 4x4 locked in and out, but when i put a new set of tires on it stopped.
#92 of 122 Confused on 4wd by dper299 Mar 22, 2009 (10:06 am)
I have a 98 Ranger 4x4 143,000 miles and I thought I had a good idea on how the 4x4 works, but now I am starting to doubt myself.. I know that when you shift it into 4x4 the transfer case motor engauges the transfer case, which in turn locks the front drive shaft.. Now here is were I am lost, The front shaft is locked in,but I can still turn the CV's and the wheels spin free when holding the CV's. I have vacume to the Hub's. Now do the hub's have anything to do with the Front diff locking in and powering the front wheels,or should the front diff be locked in and the (CV's can't spin) with the front shaft when in 4wd. Replies to this message: wiwally (Mar 22, 2009 1:50 pm) dper299 (Mar 23, 2009 6:30 am) wiwally (Mar 26, 2009 10:26 pm)
#93 of 122 Re: Confused on 4wd [dper299] by wiwally Mar 22, 2009 (1:50 pm)
Replying to: dper299 (Mar 22, 2009 10:06 am) You are both right (and wrong) When you activate the 4x4, YES the actuator turns the tcase motor to lock tcase in 4x4. But that actuator is not responsible for locking your front hubs. Your front hubs are locked in via vaccum created by your engine. My ranger is an '01 wich has a different setup (no more vaccum hubs, becasue Ford finally realized they were nothing but trouble!) Your Ranger should have a rubber vaccum line coming down from the engine compartent to provide vaccum to the hubs. check this line for cracking/chaffing. what would be the best would be to manually put vaccum to the hubs and see if they lock. I don't know all the specifics, but i do know a certain amount locks and another amount unlocks them. i don't know where the lines connect exactly either... but your problem lays in the front hubs not locking. When i was looking for info on my '01 not engaging 4x4 i found all kinds of info for your model year....keep looking you'll find the specifics Replies to this message: dper299 (Mar 23, 2009 6:30 am) wiwally (Mar 26, 2009 10:26 pm)
#94 of 122 Re: Confused on 4wd [wiwally] by dper299 Mar 23, 2009 (6:30 am)
Replying to: wiwally (Mar 22, 2009 1:50 pm) To be more specific on my question: How does/is the front diff engauged ? I lifted the whole vehicle in the air, started the truck , put it into 4wd and everything turned with the exception of the wheels. But when I put the vehicle down and locked into 4wd the driveshaft is locked in and turns but the Cvs/front axles can spin free Replies to this message: wiwally (Mar 26, 2009 10:26 pm)
#95 of 122 Re: Confused on 4wd [dper299] by wiwally Mar 26, 2009 (10:26 pm)
Replying to: dper299 (Mar 23, 2009 6:30 am) Sorry took so long...only get my email work (and work the w/e shift!) I worked on an '01 which has Ford's latest setup (cv front axles with no disconnect other than the t-case) My parents had a '94 with auto locking mechanical hubs (still different from yours). You have managed to get a model year with what i would consider (and many, many others!) to be Ford's worst idea! (SORRY, but its true!) Here's what i found on your system: Your hubs are called Pulse Vaccuum Hubs (PVH) and are found on model years '98-'00. Basically vaccuum is supplied to each of the front hubs, which locks them in. They work off a vacuum pump which is supposedly located under your air filter box. Check to make sure it is working; if it appears like its working go on to the vacuum line(s)? that lead to the front axle from the pump and check for any leakage. Next check the front hubs. The locking hubs are the black caps in the center of each from wheel…..they snap on and off..(hard to take off without breaking a few tabs, so be careful)..There are seals on these hubs, one or both may not be holding the vacuum created by the pump. If you have a leak anywhere, the hubs are rendered useless. Best bet is to replace with manual locking hubs or this will be a continuous headache. Search AVM hubs on the net, you’ll be able to find Manual lockouts for it. OR TRY THIS..... FOLLOW THE LINK (copy and paste if you have to)   http://www.therangerstation.com/forums/../Magazine/Apr04/offroad.htm Let me know what you think!
#96 of 122 Re: 4 wheel dash lights say im in 4 wheel but front wheels noy pulling [spyac3] by grumpy77 Apr 14, 2009 (5:03 pm)
Replying to: spyac3 (Jan 02, 2009 4:35 pm) what if 4wd hi works but 4low does not work
#97 of 122 4wd selector switch by grumpy77 Apr 15, 2009 (9:05 am)
goes into 4hi but not 4low is it switch or something else anyone have this problem before Replies to this message: mmcfee2 (Apr 16, 2009 4:58 am) grumpy77 (Apr 16, 2009 9:15 am) ford4xnut (May 22, 2009 5:13 am)
#98 of 122 Re: 4wd selector switch [grumpy77] by mmcfee2 Apr 16, 2009 (4:58 am)
Replying to: grumpy77 (Apr 15, 2009 9:05 am) Mine is a 2001 and has the transfer case motor, no locking hubs.....If yours is the same, the fact that 4 wheel high is working tells me the transfer case motor is fine. That leaves suspision with the 4x4 module. The 4x4 module needs reprogrammed or is bad. It is located under the passenger's side kickplate. You can replace it yourself, if you can find one, but you probably don't have the equipment to reprogram it. Replies to this message: grumpy77 (Apr 16, 2009 9:15 am)
#99 of 122 Re: 4wd selector switch [mmcfee2] by grumpy77 Apr 16, 2009 (9:15 am)
Replying to: mmcfee2 (Apr 16, 2009 4:58 am) thanx for the info i hear ford makes one that is already programmed is that true?

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