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How to change the rear axleshaft oil seal - 1998 GMC Jimmy

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Jack it up, put it on stands. Remove the wheel, the brake drum, the differential cover, the axle clip, and pull your axle. Remove and replace the seal, install new diff gasket, re-install, and refill oil.

Posted on Feb 23, 2009

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Oil leakage on Mercedes Benz 5.0L engines


oil in the bell housing can be rear main seal and it can also be input shaft seal in the gear box if manual. The sump bolts on the rear main cap and will leak next to the bell housing indicating a main seal . If auto then the seal on the converter will leak and the oil will leak out of the bell housing. If you are convinced that it is a main seal then check that there is no crankcase pressure issues to make it leak. Change the engine oil and clean the area and if the oils is clean then that will indicate engine or gear box. Put a white chalk line across any oil paths and watch for it to cross the chalk and change the chalk colour.

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I have a 93 grand Jeep Cherokee Laradeo ,to change the oil pan seal , and or the oil filter housing to change the O rings , or the timing cover seal or the rear seal , dose one need too lift up or pull...


The oil filter housing and the timing cover can all be worked on with engine in car.
For the rear engine seal (rear main seal), the transfer case and transmission will have to be removed to access the seal.
Most of the time, the oil pan can be removed without raising the engine. Check your clearance under there for anything obstructing removal. (I loaned out my Jeep manual and never got it back!) On some cars, engine needs to be raised about 4 inches for pan to clear the oil pickup tube. Don't know about your Jeep.

Nov 07, 2011 | 1993 Jeep Grand Cherokee

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I have developed a roar from the driver side rear of my 2004 Jeep Grand Cherokee. I suspect it is the rear wheel bearing. Is it easy to replace? I have done it on Ford truck before. It has 80000 miles on...


YEP CHRYSLER, FORD, CHEVROLET REPLACING REAR WHEEL AXLESHAFT SEAL AND BEARING.YOU HAVE TO REMOVE DIFFERENTIAL COVER DRAIN FLUID REMOVE LOCK BOLT SECURING PINION SHAFT HOLD PINION GEARS IN AND REMOVE C LOCK FROM INNER END OF THE AXLESHAFT. BASICALLY FORD AND CHRYSLER DIFFERERENTIAL ABOUT THE SAME YOU SHOULD HAVE NO PROBLEM FIXING WHEEL BEARING.

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How hard is it change front and rear oil seals?


By front and rear oil seals, I am assuming that you are refering to the CRANKSHAFT front and rear oil seals.
The front crankshaft oil seal is under all the components that must be removed to replace the timing belt.
The standard labor time to replace this seal is 4.0 hours for the 4 cylinder and 4.8 hours for the V-6.

The rear crankshaft oil seal requires removal of the transaxle to replace it.
The standard labor time required to do this is 7.3 hours

This is not a job for a novice unless you want to purchace a service manual and spend a lot of time reading the instructions before jumping into it.

Dec 01, 2010 | 1995 Honda Accord

1 Answer

I have a 2006 Pontiac Grand Prix, it is supercharged 3800. I have about 115,000 miles on it and I change the oil every 3,000 miles, check fluids, regular preventative maintenance, etc. I noticed a small...


If it's oil, it's coming from the rear main seal.. I would go with this idea.

The seal doesn't cost much but the labor to get to it does.

To give you an idea what is involved the procedure is illustrated below from the service manual:

Removal & Installation 3.8L Engine To Remove:
  1. Drain the engine coolant.
  2. Drain the engine oil.
  3. Remove the oil pan.
  4. Remove the engine flywheel.
  5. Remove the rear oil seal housing and gasket. Rear seal removal 3.8L gm-03-38-1175.gif

  6. Remove the rear main seal by placing the housing face down on 2 blocks of wood. Using a drift tool and hammer tap the seal out of the housing.
To Install:
NOTE: Do not lubricate the rear main oil seal or the installation tool. Do not touch the sealing lip of the rear main seal once the protective sleeve is removed.
NOTE: Use a clean lint free cloth to clean the crankshaft sealing surface. Remove sharp edges or burrs that could damage the rear main oil seal. Remove burrs or sharp edges with a crocus cloth.
  1. Carefully remove the rear oil seal from the protective sleeve.
  2. Install the oil seal onto the seal driver EN-47623 or equivalent by placing the seal at an angle and twisting until it is fully seated.
  3. Install the seal into the housing using the seal driver EN-47623 or equivalent and driver handle J-8092 or equivalent. Apply downward force until the seal is seated. NOTE: Ensure that the housing gasket is installed correctly and that the oil passages are not blocked.
  4. Using a new gasket Install the rear oil seal housing on the engine being careful not damage the rear main seal. NOTE: The plastic inserts are used in production and are not needed for assembly.
  5. Hand tighten the bolts. Rear seal housing alignment 3.8L gm-03-38-1176.gif

  6. Place a straight edge on the crankshaft rear oil seal housing flange and the engine block oil pan flange. Using a feeler gauge check that there is no more than .0004 in (0.10 mm) step on each side. Rotate the housing to make the steps equal on both sides.
  7. Tighten the housing bolts 11 ft-lb (15 Nm) plus an additional 50 degrees.
  8. Ensure that the housing did not move out of specification. Repeat step 6 if the oil seal housing is not within the specified range. Replace the rear oil seal housing if the specified measurement can not be reached.
  9. Install the flywheel.
  10. Install the oil pan.
  11. Fill the engine oil and the cooling system.
  12. Check for leaks
5.3L Engine To Remove:
  1. Remove the flywheel from the crankshaft.
  2. Remove and discard the crankshaft rear oil seal from the rear cover.
To Install:
  1. Use clean engine oil to lubricate the outside diameter of the crankshaft rear oil seal and rear cover oil seal bore.
  2. Install the tapered cone and bolts of a J 41479 or equivalent crankshaft rear oil seal installer onto the crankshaft.
  3. Place the crankshaft rear oil seal onto the tapered cone.
  4. Install the threaded rod of the J 41479 crankshaft rear oil seal installer into the tapered cone. Rear main seal installer 5.3L gm-03-53-3872.gif

  5. Install the crankshaft rear oil seal by turning the handle of the J 41479 clockwise.
  6. Remove the J 41479 crankshaft rear oil seal installer from the crankshaft.
  7. Install the flywheel onto the crankshaft.
prev.gif next.gif--- I'm not sure what the exact cost would be as the hours were not listed for this procedure on my online resource.

Sep 02, 2010 | 2006 Pontiac Grand Prix

2 Answers

My rear oil seal went out


The rear of the oil pan can in some cases leak into the bellhousing area, be picked up by the flexplate and thrown around. Also, make sure that your pcv system is working and that you are not building pressure in the crankcase. If you are building pressure, it can force the rear main oil seal to leak.
good luck

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Your info is confusing. The rear cam seal is not inside the timing belt cover, and the crank seal is at the bottom of the engine, while the cam seal is at the top.

Is there oil at the top, around the cam seal? Or just at the bottom? It's common for the oil pump seal to leak. If you get the oil pump reseal kit, it contains the oil pump seal and gasket, as well as the crankshaft seal. Make sure you seal the oil pump bolts, Volvo has special copper washers for this purpose.

Just try to locate the oil leak before replacing any more parts. Sometimes it can be something simple like the oil cap seal or the oil trap housing.


Bret
RepairPal.com

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