Question about Chevrolet Tahoe

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Well i have a 1998 tahoe and i replaced rear main seal and oil pan gasket i noticed a the oil in pan had water like a lite brown color u think its my intake gasket

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Water in the oil is usualy from a leak in the cyninder head gasket. Sometimes you can seal the leak with a radiator additive. If the car starts to run hot or if you see the watery oil on the dip stick you should get the car to a shop for a repair estimate.

Posted on Mar 13, 2011

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Either intake are head gasket

Posted on Mar 13, 2011


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4 Answers

Oil leak on driveway coming from front of engine

Dear Sir,
Here is the oil leaking Problem Identifying Technique

Engine oil leaks from the valve cover gasket are common.

  • The intake manifold plenum gasket may leak and cause increased oil consumption/burning and a spark knock during acceleration; the gasket should be replaced.
  • External oil leaks from valve cover gaskets, intake gaskets (front or rear), and the rear crankshaft (rear main) seal area are common. The rear main seal is an unlikely source. Normally, the bearing cap mating surfaces (as well as the sealing surface between the oil pan and bearing cap) are the source for the leaks.
  • Engine oil leaks at the distributor can be misdiagnosed as leaks from theintake manifold seal, oil pan gasket, or rear crankshaft (rear main) seal. A revised distributor is available if oil is found inside the distributor.
  • If the oil filter casing shows signs of distortion from excessive oil pressure, theoil pump should be replaced.
  • Often misdiagnosed as a leaking oil filter gasket, the oil filter adapter can seep from between the adapter and engine block.
  • Carbon buildup on the top of the piston is common. As the buildup increases with mileage and over time, symptoms may vary from light ticking, to ticking/hammering, to hammering/knocking noises. Fuel injector cleaner often solves the problem.

  • I think it helps to analyse u r Problem

    Nov 02, 2012 | Toyota Cars & Trucks

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    I have a 02 Chevy sounds like coolant rushing throughout the engine while sitting at an idle and about every 2 or 3 days I gotta add coolant its not much also the low coolant light comes on...

    I would perform a coolant pressure test because these engines are known for leaking intake manifold gaskets.Check and see if your oil is starting to turn a creamy tan color.

    Jan 24, 2012 | 2002 Chevrolet Tahoe

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    I changed the oil sensor on my 1997 mercury villager van, and it is still leaking oil. The oil lite never has come on and I checked oil last night and it was one quart low. Could the gasket on the oil...

    The oil is leaking from wherever you see oil on the engine. Sometimes there can be to much oil covering the engine and it needs to be degreased. A dye can also be added to the oil that will illuminate when a dye light is used to help track down a leak. If the oil pressure switch you removed wasn't wet with oil or leaking than it wasn't bad.

    It could be anything from the valve cover gaskets, cam seals, front crank seal, oil pan gasket, rear main seal or head gaskets.

    Nov 21, 2010 | 1998 Mercury Villager

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    Leaking oil could this be a rear main seal?

    that or oil pan gasket or pan bolt is striped.

    Aug 15, 2010 | 1998 Pontiac Sunfire

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    How do I change the tranny fluid in my 1998 cadillac catera

    Fluid - A/T: Service and Repair
    Transmission Fluid and Oil Filter Changing
    1. Raise and suitably support the vehicle. Refer to Vehicle Lift Points.
    2. Place drain pan under pan
    3. Remove oil pan bolts from front and sides only.
    4. Loosen the rear oil pan bolts approximately four turns.
    5. Lightly tap the oil pan with a rubber mallet or pry to drain the fluid from main case.
    6. Remove the oil pan bolts from rear oil pan and gasket.
    7. Remove front oil pan bolts leaving one corner bolt in loosely.
    8. Lightly tap oil pan with rubber mallet or pry to drain fluid.
    9. Remove the following remaining components:
    ^ The front oil pan bolts
    ^ The oil pan
    ^ The gasket
    10. Remove the oil filter bolts and filter.
    11. Clean the following components:
    ^ The transmission case
    ^ The front adapter case
    ^ The oil pan gasket surfaces with solvent
    ^ Air dry
    ^ All traces of gasket material must be removed
    1. Install the gasket.
    2. Install the oil filter.
    3. Install the bolts.
    ^ Tighten the transmission oil filter bolts to 20 Nm (15 ft. lbs.).
    NOTICE: Refer to Fastener Notice in Service Precautions.
    4. Install the front oil pan.
    5. Install the front oil pan gasket
    6. Install the front oil pan bolts
    ^ Tighten the front oil pan bolts to 11 Nm (96 inch lbs.).
    7. Install the following components:
    ^ Install the pan
    ^ Install the gasket
    ^ Install the bolts
    ^ Tighten the oil pan bolts to 11 Nm (96 inch lbs.).
    8. Refill the transmission with DEXRON III through oil pan fill plug on the side of the (main case) oil pan. Fill the transmission to lower edge of oil
    pan fill. Fill plug opening using and oil suction gun.
    ^ Tighten the oil pan fill plug to 45 Nm (33 ft. lbs.).
    9. Lower the vehicle.
    10. Check the transmission fluid level. Refer to Transmission Fluid Checking Procedure.

    Sep 13, 2009 | 1998 Cadillac Catera

    1 Answer

    My Chevy 2002 Tahoe is leaking oil. They told me

    this truck is equipped with an aluminum oil pan you could have 1 or several things going on... a stripped drain plug which is causing it to leak or it may be a leaking front seal or a rear main seal. If it is a front seal it is not to labor intensive. But if it is a rear main seal leaking it will require the transmission to be removed since the seal is a 1 piece rear main

    Sep 07, 2009 | 2002 Chevrolet Tahoe

    2 Answers

    Oil leak in my 98 mazda protege

    Could be a rear main seal.

    Apr 02, 2009 | 1998 Mazda Protege

    1 Answer

    Finding drain plug on a 1998 ford explorer

    Could possibly be the pan gasket. The other things that may be your leak would be the rear main seal or the front crank seal. If the oil is coming out from the rear of the oil pan then it is most likely the rear main seal. If you have high mileage on the vehicle in excess of 100,000 miles this becomes even more of a possibility. The front crank seal will leak at the back side of the crankshaft pulley and blow back towards the rear of the engine. I would vebntire to say it probably is the rear main. To replace the rear main you will need to remove the tranny and the flywheel and then the retaining plate for the rear main seal. Unfortunately Ford went to the one piece deal years ago. If you need more assistance please feel free to ask any questions you may have. We are all here to help you with all questions. Good luck.

    Mar 15, 2009 | 1998 Ford Explorer

    1 Answer


    it sounds like a rear main seal or a head gasket check your oil if it looks sort of like a milk shake color or foamy its the head gasket if its is leaving little spots under the car towards the back of the motor it is the rear main seal or it could an oil pan gasket.

    Dec 20, 2008 | 1997 Dodge Stratus

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