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Have 2003 h2 trying to find oil leak it's not rear main seal or valve gasket. Could oil sencier be leaking if so where is it

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  • Cars & Trucks Master
  • 14,585 Answers

The sensor is at the front of the engine, By the oil filter. Passenger side.

Posted on Dec 26, 2016

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: i have a 1989 honda accord dx with a oil pan

they don't use gaskets on oil sumps its sealant glue and yes u will have to reapply it when you put the sump back on, and what do u mean by main seal? do you mean the head gasket?

Posted on Nov 18, 2009

  • 3 Answers

SOURCE: 98 dodge caravan oil leak

Check were the oil filter screws on to the housing. Make sure the seal don't need replacing on the housing.

Posted on Dec 29, 2009

  • 593 Answers

SOURCE: oil leaking from back of motor . changed oil

The oil pressure switch is located on top at the
transmission end of the engine.
If the switch is leaking, it could appear to be coming
from the places you mentioned. Hope this helps.
Good luck

Posted on Jan 22, 2010

cmcduncand
  • 714 Answers

SOURCE: Rear engine oil leak....

Oil leak can be attributed to several factors.
1. Gasket failure.
2. Uncontrolled Crank case pressure Failure.

RECOMENDATION:
Tighten both the valve cover and oil pan bolts.
Replace the Positive Crankcase Ventilation Valve and vacuum line.,

INFO: PCV
This is a valve causes a negative vacuum on the engine while its running, As to say if it had a leak in a valve cover it should not be leaking while its running, only when the engine it turned off.

Hope this tip guides you in the correct direction to solve this problem.

R/
David

Posted on Mar 15, 2010

  • 3 Answers

SOURCE: 1997 nissan maxima. small oil

sea foam makes an additive for reconditioning seals in the engine(rear main included)....cost about twelve dollars....use according to directions on package...then sell

Posted on Sep 22, 2010

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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

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    severe oil leaks would be front timing cover crankshaft seal and the rear main seal or leak at oil pump at front timing cover oil leaks can come from damaged oil filter seal or damaged oil pressure sending unit.slow oil leaks oil pan gasket the valve cover gasket leaks you will see and smell smoke from under engine compartment which could be a fire hazard.

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    I have a 2003 BMW 325i. We had the oil changed and had discovered a drop of oil under the car the day before. The repair shop replaced our oil pan plug because it was cracked. Today we have 5 or 6 drops...


    It could well be a PVC valve. The PVC plumbing on e46s is not one of BMW's best designs, and it needs to be cleaned out every 100k miles if not sooner.
    Not likely a rear main. I have never seen a failed rear main seal on a 6 Cyl BMW.

    Are you sure it is not power steering fluid? I would be surprised if a 2003 were not leaking a little power steering fluid by now if the hoses have not already been replaced.
    Another common oil leak is the hose that feeds oil to the VANOS.
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    Oil leaking in engine have replaced seal and O rings but still leaks. I am going to scream!


    ok, There are many areas that the oil could leak from. Head gasket, oil pan gasket, rear main seal, front seal, valve cover gasket. You'll need to locate the leak under the car in order to know which one to replace. There is nothing simple about replacing the rear main seal and although he front seal is easier it can still be a problem. Good Luck.

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