Question about 2000 Ford Expedition

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Noise in the front differential or transfer case when put to much pressure in the gas pedal.

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: hummer h2 transfer case

Only way for this to happen on an H2 (AWD) is for something to break rearward of the lockup hub. Take a look at the splines between the intermediate shaft and centerdifferential or even the teeth on the forward sun gear and/or stepped pinion on the center diff.

As long as you have the t-case torn down for repair be sure to upgrade to the new aluminum mode fork (production upgrade to old plastic forks thru end of 2007 or so). You should also upgrade the rear half of the housing to the 2008 version which has a pressed-in rear prop bushing (better bushing and is also replaceable.

Posted on Sep 30, 2008

  • 10 Answers

SOURCE: transfer case making roaring rattling sound

it's possible you might need to just change the trans case fluid.... it's a pretty simple task, i usually do all the small minor work first before i take it to a dealer to fix.... if they said you need a new trans case, but didn't tell you why, more than likely there might be something you could do yourself to make it better... those service men have been working around vehicles long enough, they should be able to tell you exactly what's wrong!
i would also do a tranny fluid change to... some of the noise could be coming from there too -- when you change either fluid, add a little lucas transmission fluid stabilizer, it helps alot with seals and makes the fluid stick to the gears better...

Posted on Jan 15, 2009

  • 199 Answers

SOURCE: '95 tahoe making noise when accelerating; sounds

no it should not spin when is in 2wd thanks

Posted on Jul 22, 2009

  • 713 Answers

SOURCE: The front end sounds like it is coming apart with

these vehicles have hub bearings on them and you have one that is probably in really bad shape, suggest not driving. Jack the front end off of the ground and try moving the wheel back and forth from the top and bottom if it moves a great deal it is more than likely a bad bearing. Also, pay attention to the upper and lower ball joints they are the two pivot points at the top and bottom of the wheel.

Posted on Sep 04, 2009

  • 1 Answer

SOURCE: whining/grinding noise at deceleration

If the noise is on decceleration mostly like it is the pinion bearing in the diffrential. Could possibly be spider gears as well.

Posted on Apr 30, 2010

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I have a loud clunking noise in front end of my 99 silverado when i engage 4wd

First off where does the clunk come from, the front or center of the vehicle? It could be the transfer case/ front differential oil needs to be checked for leaks or low oil levels, or a universal joint worn out from transfer case to front differential.

Oct 16, 2016 | Chevrolet Silverado Cars & Trucks

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00 sierra on decceleration above 30 mph get a noise like a airplane taking off, slight pressure on gas pedal and soundas like a shift and noise goes away. always happens on deacceleration ??

If noise coming from rear of vehicle, inspect differential components. Possible pinion bearing internal to differential getting worn

Jan 26, 2016 | Cars & Trucks

1 Answer

1998 chevy siverado Z71 4x4 noise from front differential when in 2 hi, no noise in 4 hi or low. Changed gear lube lube, went for drive no noise. Next day noise came back, any help

Are you sure that the noise isn't coming from the transfer case? The front dif shouldn't care what gear your transfer case is in, it is either receiving power or it isn't.

Jan 23, 2016 | Cars & Trucks

1 Answer

Cadillac escalade - rear end **** in reverse

Sounds like a transfer case problem, this may require a replacement transfer case.Not what you wanted to hear, try making sure the emergency brake is not frozen or the emergency brake cable is not stuck.

Apr 08, 2014 | 2002 Cadillac Escalade

1 Answer

1997 mountaineer transfer case is shot. and I was wondering. if there is a fuse I can pull out in my car to keep the popping noise from happening?

No. The popping is coming from pressure being put on your transfer case. The axle leading to your front differential can be removed. That may or may not fix your issue.

Jul 28, 2013 | Cars & Trucks

1 Answer

I have a 95 Grand Cherokee limted. I have a humming noise coming from the front end it gets louder as i accelerate, when I let off the gas the humming sound dies down. I was told it could possibly be my...

This year Jeep is famous for front and rear differential bearings going out, and it sounds like thats whats going on. If the transfer case were going out, you would hear all the grinding coming from the center of the car. If you are curious, remove the plate off the front diff.When the oil comes out,you will see lots of metal in it. Unless you rebuild differentials, you'll have to have it rebuilt.

Jul 20, 2011 | 1995 Jeep Grand Cherokee

1 Answer

Have a 1993 f150 4x4 transfer case sounds like its engaging but there is a grinding noise when she goes in 4x4 only checked transfer case its fine could the hubs be gone over the summer with out use.

Try removing the front drive shaft from the transfer case to the front differential. With the vehicle on 4 jack stands and the front drive shaft removed attempt to place the vehicle into 4 WD. You may have to start the engine if the vehicle uses a vacuum actuator module to engage the front wheels. When you get an indication that the vehicle is in 4WD try turning the front wheels by hand and see it you hear the same grinding noise .... engage the hubs and try again. Usually if the transfer case is ok then the problem is in the front differential or one of the many universal joints that connect all of the elements together. Check the U joints on the front drive shaft for play as well as the U joints on each of the front wheels.

Dec 04, 2009 | 2000 Ford Excursion

1 Answer

When in 4wd it makes a noise

Is the noise in the front or middle? If it's in the front, it is most probably a wheel hub or differential case bearing. First I would check (or replace) all the gear lube in the transfer case and both differentials.
If the sound is under the middle of the jeep, it's probably a front output bearing in the transfer case.

Jan 16, 2009 | 2005 Jeep Liberty

1 Answer

I have a growling noise, almost like it is still in 4 wheel

check the front differential fluid, but also the transfer case fluid as the front diff is most likely the cause, but also check the transfer case fluid. if the front differential fluid is low with metal shavings in it or dry, you'll need a diff. if you have the skill, tools, or time, it would most likely be cheaper to rebuild it, but easier to replace whole unit. you'll be able to tell if the fluid has metal shavings in it, it will be its color, probably dark, with streaks of metallic in it. just hold a light up to it, you'll see. hope this helps!

Jan 04, 2009 | 1992 Isuzu Rodeo

1 Answer

Front End Problems

first i would check the tires , are they cupped or chopped on the tread? run your hand over the tread and see if it feels rough and uneven. take the truck to a auto repair shop and have them jack both front and rear axles off the ground, put the truck in 2 wheel drive and run the speedometer to the speed you usually hear the roaring noise, if you don't hear the noise , put the truck in 4 wheel drive, turn off the traction assist if it has one and run it to the speed you would hear the noise. if you hear the roaring noise with tires off the ground, the problem is in the drivetrain, (engine, transmission, transfer case, u-joints, differentials or the front left or right cv halfshafts or u-joints). the older models (97 98) had the front two driveshafts from the differential turning all the time, they engaged in 4 wheel drive from the transfer case and a solenoid on the front differential. depending on the miles you have on this truck, the most likely areas i would look at would be the tires, u-joints/cv joints, and front and rear wheel bearings. thanks and good luck.

Oct 04, 2008 | 2004 Dodge Ram

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