Question about 1999 Suzuki Vitara

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Internal oil leak - 1999 Suzuki Vitara

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Smokes when first starts up

Posted on Oct 08, 2008

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Can oil pressure sender cause a major oil leak if sender is bad


Hi Jerell:
Short answer - YES
Fortunately, it is usually easy to find the source of oil leaks. clean it up, run it for a short time, look for the fresh oil leak.

Lots of older vehicles had a vinyl tube that went from the engine block to an oil pressure guage. A hole in the tube or a bad fitting connection would cause the loss of a large amount of oil.

Electronic senders could still be the source location for an oil leak if the internals had failed. Not common, but possible.

May 13, 2015 | Cars & Trucks

2 Answers

Why is my 2000 kia sephia blowing blue smoke from the tailpipe. it has 86,000 miles. the check oil warning light is on even though the dipstick reads full.


The most common cause of blue exhaust smoke is oil leaking past engine seals and into the cylinders where it then mixes and burns with the fuel. This is most frequently seen in older or high mileage cars with worn seals and gaskets. It only requires a very small amount of oil leaking into the cylinders to cause excessive blue exhaust smoke.

Blue exhaust smoke only at start-up can indicate worn piston seals or damaged or worn valve guides which may also cause a rattling noise. An external engine oil leak can drip onto hot engine and exhaust parts causing what appears to be blue exhaust smoke. Other possible causes of blue exhaust smoke include: piston wear, worn valve seals, a dirty or non-functioning PCV valve, worn piston rings, an intake manifold gasket leak, worn engine oil seals and possibly even head gasket failure.

Oil leaking into the cylinders can cause a rough idle, misfire and fouled spark plugs. In addition, a reduction in power and oil loss can be indicators that the blue exhaust smoke is caused by an internal engine oil leak. Internal engine oil leaks can also allow fuel to mix with the oil in the crankcase which will degrade the oil and prevent it from adequately protecting the engine.

Operating a car with a severely dirty oil filter, air filter or improperly functioning PCV valve can also sometimes result in engine oil blow-by, oil loss and blue exhaust smoke. Periodically checking the engine oil level with the oil dip stick will indicate if there is excessive oil consumption. Higher viscosity engine oil can sometimes temporarily reduce the amount of blow-by; however, this is not generally recommended. Excessive blue exhaust smoke indicates a possible internal engine oil leak that should be inspected by an ASE certified mechanic.

Dec 08, 2014 | 2000 Kia Sephia

2 Answers

Smoke coming from exhaust


if its white smoke and wet its a internal engine water leak

if it is black smoke it bis an internal engine oil leak

if it is blue smoke it is an internal fuel leak or ignition failure somewhere

Hope this helps have a great day

Mar 15, 2014 | Mercedes-Benz Cars & Trucks

1 Answer

2007 Yukon xl denali burning oil


If you smell burning oil, you may have a leak in the engine compartment reaching the exhaust manifold and burning on contact. The most common cause for that is leaking valve cover gaskets. If you are losing oil with NO signs of external leaks, the engine may be burning it internally. Valve stem oil seals, worn piston rings, blown/leaking head gasket are a few causes of that.

Oct 07, 2012 | 2007 GMC Yukon XL Denali

2 Answers

I see oil residue on the front bottom left of my engine.could it be my oil pump leaking or is it my gasket from a different part?


it is not your oil pump, as your oil pump is internal, it could be the oil pan gasket or the oil filter, try getting under the vehicle with a torch & having a good look to see where the leak is,when you know exactly where it is leaking you may be able to solve the problem, firstly determine if it is engine oil or transmission oil or power steering oil ETC.......hope this helps.....cheers.

Jun 17, 2011 | 2006 Toyota Tacoma

1 Answer

Leacking coolant fluid slowly


There are several ways to check this problem. The most reliable is a Radiator pressure tester which you might be able to borrow with a deposit from Autozone or Oreillys or Advance. The old-time Service stations used to use them. For sure Radiator repair shops still use them. The idea is to put air pressure in the water system and force the water out of the leak. Sometimes chemical tracers are added to expose tiny leaks.

What does not leak externally would have to be leaking internally.

Looking at your Radiator fluid you should not have oil in the Antifreeze. Then look at your oil dipstick. The oil should not have a white or yellow frothy appearance indicating water content or Antifreeze content. It is possible to leak water into the oil crankcase and the water will partially evaporate leaving the frothy residue.

Once you determine the source of the leak you can make decisions. Internal leaks are the most expensive to fix. These would be internal things like head gaskets. Evidence of head gasket problems are oil in the Antifreeze and Antifreeze in the crankcase or frothing. It is worth it to try a modern leak-stop. This is one area where modern chemicals are better than products of the 1950's.

But do not use leak-stop for hoses and water pump problems. Hoses are cheap to replace and water pump seals and gaskets are subject to erosion from the flowing water.

If you can not find anything through this testing, put a page of newspaper under the interior carpet by the Heater core. A slow leak can drip on the carpet and gradually soak in before you discover it.

I hope my solutions help you fix your problem.




Jan 11, 2011 | 2001 Mercury Mountaineer

2 Answers

Can a oil sending unit possiblely be the cause for an oil leak


Yes it certainly can. Because oil has to pass into the sending unit under pressure in order to work. If the sending unit develops an internal leak it can leak a large amount of oil in a relatively short period of time.

Dec 12, 2010 | 1996 Ford Explorer

1 Answer

The oil is leaking from my car i think that the oil pump is damaged because oil is leaking very bad


Unless you've run it out of engine oil because of the bad leaks , oil leaks are are not a sign of a bad oil pump , what is a sign of a bad oil pump is low or no oil pressure either due to lack of oil for the pump to pick up in the oil sump or either a mechanical failure of the oil pump, in which case you would have some internal damage to your engine. In either case if you plan to keep the car then by all means have the oil leaks investigated and repaired so the the oil stays inside the motor instead of the outside and on the ground making your driveway look horrible...

Oct 05, 2009 | 1991 Oldsmobile Cutlass Supreme

3 Answers

Exhaust leak and oil loss


the valve seals leaking oil inside the cylinder will cause an internal oil leak you can't see. exhaust leak is something different. best of luck.

Aug 06, 2009 | 2005 Kia Rio

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