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#1
12-09-2009, 08:35 AM
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Good samaritan loses.again
New guy here. while trying to remove a ford expedition from a 10 ft ditch my 4wd quit working. i just put a new 4wd actuator in 3 weeks ago. the indicator light comes on and registers as engaged but nothing. there was faint grind for a second when i left the scene but nothing else except no 4wd and horrible alignment now. so i guess what i am inquiring is what should i check? the truck is new to me so not much time under hood. 94ext.cab z71 4wd auto 5.7L. I have read through numerous posts and cant find or missed valuable info any help would be greatly appreciated "The best lesson learned is the expensive one" Thanks Mike
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#2
12-09-2009, 11:35 AM
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Re: Good samaritan loses.again
Take a look at the vacuum actuator diaphragm, the vacuum lines from that to the transmission, and back up to the intake manifold. If there's a hole or leak then the 4wd won't engage fully, giving you that grinding sound.
Also, pull the vacuum hoses and check for transmission fluid in them. If so, the transfer case vacuum switch on the driver side of the tranny has failed...fairly common. You'll have to clear out all the vacuum lines, the black vacuum bulb (you may have to drill a second hole in it and then close it back up with epoxy), actuator, and replace the switch. Hope this helps!
__________________
Current Garage: 2009 Honda CR-V EX 2006 Mazda 3i 2004 Chevrolet Silverado 2500HD 2003 GMC Envoy XL 2000 Honda ST1100 2000 Pontiac Sunfire Vehicle History: 2003 Pontiac Vibe AWD - 1999 Acura Integra GS - 2004 4.7L Dakota Quad Cab 4x4 - 1996 GMC Jimmy 4wd - 1995 Chevrolet C2500 - 1992 Toyota Camry LE 2.2L - 1992 Chevrolet S10 Ext. Cab 4.3L - 1995 Honda ST1100 - 1980 Yamaha XS400 - 1980 Mercury Bobcat.
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#4
12-09-2009, 12:59 PM
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Re: Good samaritan loses.again
241 transfer case with a floor 4W shifter?
Also check shifter linkage to transfer case.
__________________
Remember proper testing gives us the answer to many problems. MT
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#5
12-09-2009, 03:32 PM
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Re: Good samaritan loses.again
yes 241 w/ floor shift the x/fer case IS locking and the front axle feels and appears to be locked in.(when engaged w/ engine running in park i can grab front driveshaft and move it very slightly and the axles seem to react) but when i give the gas only rear wheels spin with front and rear shafts turning. I think the front drivers side is the puller.
thank you! mike
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#7
12-09-2009, 04:49 PM
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Re: Good samaritan loses.again
That transfer case has a 4W and then 4W lock.
Are you trying it in 4W lock. In just 4W one end will spin out. Just like a non locking rear end one wheel will spin. Put it in 4W lock and jack it up and see if front and rear drive shafts ar locked in.
__________________
Remember proper testing gives us the answer to many problems. MT
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#8
12-09-2009, 06:28 PM
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Re: Good samaritan loses.again
jacked it up both shafts spin with 4w locked front wheels nothing. I also tried low range same thing.actuator is working and registers as on. could the locking mechanism itself be shot or the gears. i guess i will buy the manual for the truck and tear into it. any precautions?hints?
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#9
12-09-2009, 06:56 PM
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Re: Good samaritan loses.again
Quote:
One for 4W and one for the transfer case lock. Make sure both are engageing transfer case. They get out of adustment and dirty and nuts on levers can come lose. Un do the shift rods and feel shift levers for ingauging transfer case inside. Good Luck
__________________
Remember proper testing gives us the answer to many problems. MT
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#10
12-11-2009, 06:25 PM
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Re: Good samaritan loses.again
ok i caught a chance to go through the procedure and the 4wd shift levers were spot on they move to the correct positions. so i put the levers/linkage back together. also i picked up a haynes repair manual and it was very dissapointing. is their a manual availible for a 94 k1500 z71 4x4 5.7L auto.trans. that has a breakdown of front differential, tranfer case,and rearend?or maybe an online place? thanks mike
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#11
12-11-2009, 06:44 PM
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Re: Good samaritan loses.again
Haynes is just a general hit and miss.
Factory repair manual best. http://www.alldata.com/products/diy/index.html Many public library's have car repair info on line to. Parts places may have a parts breakdown they can copy for you. AZ online web site may have some info on it. Good luck
__________________
Remember proper testing gives us the answer to many problems. MT
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#15
12-12-2009, 12:41 PM
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Re: Good samaritan loses.again
That was standard with the floor shift on them.
Old school 4W drive stuff. The floor shift lever has 2W and 4W high and 4W high lock and neutral position and 4W low and 4W low lock One lever is the transfer case 4W lock in lever and the other is is 4W high and 4W low and neutral and 2W shift lever. It takes 2 shift levers from floor shift lever to transfer case to get it all done. Take a look at one under side some time and you will see.
__________________
Remember proper testing gives us the answer to many problems. MT
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