Question about 1994 Cadillac Seville

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94 caddy with transmission leak. Have changed

94 caddy with transmission leak. Have changed main front seal and filter. Still leaks. Any ideas?

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  • Anonymous Mar 30, 2009

    how do i change the rear transmission seal on a 94 cadillac seville

  • Clint Smock
    Clint Smock May 11, 2010

    Is this a 4.9 with a 4t60e or a 4.6 with a 4t80e

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  • 398 Answers

Check trans cooler lines

Posted on Mar 07, 2009

  • josh1111 Mar 10, 2009

    The 4L30-E transmission has two fluid pans, how about trans to engine seal it may be there if the cooler/vacuum lines are good

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What gaskets and seals will i need to change a 94 ford explorer transmission


I would change the pan gasket, converter seal and rear transmission seal. Also the rear main seal on the engine.If the oil pan gasket is leaking I would do it now. Way easier with the transmission off.

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2006 dodge grand caravan transmission fluid low but cannot find a leak


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94 caddy sedan deville 4.9 transmisson wont engage into any gears


If you are sure the fluid level is full, the filter could be leaking pressure or not allowing fluid to pass thru. There may not be enough fluid in the valve body to make the transmission function.

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Oil leak between oil pan and transmission.


Try running some of that high-mileage engine oil next time you do an oil change (it helps to swell engine seals slightly). If the problem clears up or is reduced, then it's likely that the rear main oil seal is starting to leak a little. The rubber seals will harden up and shrink a little with age.
I would also powerwash the entire area clean, so that way any leak will be easier to monitor and pinpoint.

Feb 24, 2013 | 1999 Chevrolet Silverado 1500

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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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    My transmission leaks what should i replace


    There are at least 5 places on the Automatic transmission that can over time, and mileage develope fluid leaks. Front converter seal at the front of the transmission,pan gasket in the center,dipstick tube o ring at the center on one side ,speed sensor o ring,and the tail shaft seal at the rear,of the transmission.
    Place a flat piece or huge card board,under the engine and transmission,after driving you will see where the fluid,red in color is dripping. Its easier to spot exactly where the leak is comming if you can look under the car,while it is running, The easiest leak is the pan gasket,the dipstick tube, and the speed sensor,then the rear housing tail shaft bushing and seal.
    If the front seal(converter seal) is leaking the transmission will need removed,and the seal,and maybe even the front pump bushing Replaced,it would be a good idea to replace the bushing esp if it has high mileage,80,000 or 100,000 miles of use.Change the fluid and the filter,while repareing the leak or leaks.Is a good idea.

    Sep 17, 2010 | 1995 Chevrolet Camaro

    1 Answer

    I have a 94 c 1500 the transmission leaks only at high speed 70+ i cant find the leak with it running at idle or off and when it leaks it covers the undercarrige any ideas


    These are common for leaks from the pump at higher road speeds. The leak comes from the front seal but the problem is the loose bushing behind the seal that slides forward and opens the seal

    Apr 12, 2010 | 1994 Chevrolet C1500

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    I changed tranny filter and pan gasket, still leaks, possible inner seal? any suggestions?


    need to identify where leak is coming from wipe clean bottom of transmission and check trans lines ,dipstick tube, rear seal ,pan for leak or drip start van and let run drive around block than park and recheck trans for leak if leak by where engine and trans meet than front seal anywhere else fix and or replace front seal two choices first can try a trans leak additive follow instructions carefully or need to pull trans to replace seal

    Feb 01, 2010 | 1998 Dodge Caravan

    1 Answer

    Transmission leaking nearfront changed front seal still leaking transmission fluid


    Most transissions front leak is the front seal but it can also be the pump gasket over flow expelling fluid.To save money you should first change the filter. Them if it still leaks pull the trany and pull the front pump and change the gaskets and seals. If this does not fix it then you should seek professional help.

    Jun 20, 2009 | 1999 Chevrolet Silverado 1500

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    Manual Transmission Filter?


    The Borg Warner T-5 manual transmission has no filter. Assuming the leak is not really the rear main seal of the engine leaking, which is more likely, then it leaking from the front of the transmission. You will need to drop the transmission to get to the front seal on the first motion shaft. Unless you are really mechanically inclined or have a friend who is, leave it to a good shop.

    Mar 03, 2009 | 1996 Chevrolet S-10 Pickup

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