Question about 2003 Chevrolet Silverado 1500

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4 lo works 4 hi doesnt new transfer case driveline

4 lo works 4 hi doesnt new transfer case driveline locks up in 4 hi but hubs dont

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THIS MAY BE A LINKAGE ADJUSTMENT NEEDED!

Posted on Sep 06, 2010

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I have a 2006 f350. Ford will not go into 4wheel


Which 4X4 system does yours have ?
Four-Wheel Drive Systems The mechanical-shift 4-wheel drive system consists of the following components:
  • Transfer case (For transfer case repair procedures, refer to Section 308-07B ).
  • Transfer case shift lever
  • Manual locking hubs
  • 4x4 indicators
  • Shift linkage (hub locks)
The electronic-shift, 4-wheel drive system consists of the following components:
  • Transfer case (For transfer case repair procedures, refer to Section 308-07B ).
  • Four-wheel drive (4WD) control module (For 4WD control module installation, refer to 4WD control module in this section.)
  • Mode select switch (MSS)
  • Gearmotor encoder assembly
  • Automatic locking hubs (hub locks)
  • Pulse vacuum hub lock (PVH) solenoid and vacuum lines

Jan 11, 2018 | Ford Cars & Trucks

1 Answer

Ford 9000 all wheel drive,does front driveline turn all the time


if you have the hub locks in ,it will If you have the hub locks out but the transfer case in 4wd it will If you have the transfer case in 2wd and the hub locks out then it may still turn slowly /intermittently from the oil /grease friction driving it.

Dec 05, 2014 | Cars & Trucks

1 Answer

My 89 jeep wrangler islander only drives in 4 Lo. If I put in 2 hi it clanks and I can hear the gears grind. First gear works decent but once you switch to second you can hear it grind again. What could my...


old dog , jeep, sure.
its a PART TIME 4wd, not AWD.
you post but forget (100s like this here) with no road surface stated.
dirt, ice, snow, off road, pavement. what??

my wild guess, is this car is new, to you,
and you never read the operators guide yet.
lost 25 years ago, but sold on fleabay
PT-4wD
do not drive on pavement dry , or you WILL wind it up.
WHEN I SAY 4wd I MEAN , the front lockers are locked AND
the transfer case is in 4wd.

Here is the best page on the net for PT-4WD
here we go , WINDUP. 101

http://www.rubicon-trail.com/4WD101/driveline-bind.html

answer, is , DONT DO That.

Mar 31, 2014 | 1988 Jeep Wrangler

1 Answer

I have a 1995 For Ranger 4x4 with automatic locking hubs. When i engage the 4x4 the light comes on for 4 hi but not for 4 lo and i can hear a clicking in the transfer case but the hubs are not locking in....


The hubs engage by vaccum, you probably have a leak somewhere, the problem is it doesn't have to be leaking at the modual, anywhere on the engine that there is a vaccum line can cause this problem. If this is a truck that you like and want to keep for a long time you should consider swithing over to manual hubs they never fail and you'll save a ton of gas when your running in two wheel drive.

Jan 25, 2011 | 1995 Ford Ranger Supercab

1 Answer

95 passport shakes when4x4 is engaged during acceleration


Bad u-joints at front driveline and/or u-joints at axle connection from behind rotors- going into front differential. Need new u-joints at either the driveline front and back (going into differential or to Transfer case) or the Left and Right side axles going into the differential. Put Locking (or "Lock-outs) hubs on front axles... WARN brand are best... about $75 a pair and you can do it yourself, easily.

Dec 28, 2009 | 1995 Honda Passport

1 Answer

4 lo working, 4 hi stopped working , A4WD never worked


Hi my name is Juan and I do own a trailblazer with the same year 2002 and I read the problem you have let me try to help you Have you try to shift to 4hi with your transmission in neutral ? the transmission needs to be in neutral in order to shift the transfer case to 4hi and the vehicle needs to be completely stooped also is your service 4wd light on?? if the light is on your transfer case needs service and it can be as simple as the switch inside your car or a solenoid that has not been detected by the computer

Mar 30, 2009 | 2002 Chevrolet TrailBlazer

2 Answers

2001 Dodge Durango stuck in 4 wheel-Low. Won't switch back to 2WD


Just to clarify, the "transmission" is not stuck in 4-Lo. It is the "transfer case" that is attached to the transmission that actually engages the 4-Hi and 4-Lo modes. To properly shift your vehicle into 4-Lo, you know that you have to shift the transmission into neutral and slow down to less than 5 mph. Once your vehicle slows down to this range, your can switch your transfer case into 4-Lo mode. Due to the inner workings of the transfer case, the actual shift into 4-Lo may take a few seconds to complete. This is normal and does not signify that there is an issue. All transfer cases that have 4-Lo mode will act this way regardless of the make or model. To make a long story short, to shift out of 4-Lo you must follow the same steps that you took to shift into 4-Lo, just in reverse order. Switch the transfer case to 4-Lo mode if it isn't already there. Slow down to less than 5 mph (your vehicle must be moving, though). Then, shift your car into 4-Hi or 2WD. Give your vehicle several seconds to complete the shift. The transfer case indicator light will flash until it is complete. When it does complete the shift into the new gear mode, you will most likely hear a "clunk" (the range sleeve inside the transfer case disengages from its mating spline) from under your car. Again, any transfer case with 4-Lo (regardless of make or model) will exhibit this same noise. This should help you get out of 4-Lo. It is good practice to shift your car into and out of 4-Lo at least a few times each year to keep all of the splines free of corrosion and build-up. Based on the age of your vehicle, your transfer case may also need a complete flush and some new transmission fluid. Hope this helps.

Feb 22, 2009 | 2001 Dodge Durango

1 Answer

Front hubs won't lock!


no nothing like that ''it sounds like an al-su-layer that locks the front end in' its in the front on the front axels' some are lec-trik they have a wire that plugs in on it'' you cant miss it'' some run off a vacum check that or the lick-eeg on the transfer case to'' name is james e-mail me back if i can help some more jay_win2002@yahoo.com sarry my spelling is not all that grate'''

Jan 30, 2009 | 1999 Chevrolet Silverado 1500

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