Question about 1993 Toyota Land Cruiser

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DIESEL LEAKING INTO ENGINE OIL

TOYOTA 4.2 AMAZON 1998 MILES 200K

NEW SET OF INJECTORS FITTED / NEW FRONT DIESEL PUMP SEAL FITTED.......... OIL LEAVEL STILL INCREASING..

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  • Joseph Lukas May 11, 2010

    Doe the car smoke? Esp white smoke at any time?



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You could have a broken piston rings

Posted on Jun 23, 2009

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I have a 2004 Toyota highlander leaking oil, oil light comes on. Could it be the rubber rings?


a 2004 toyota highlander V6

this should be your engine type
The 2GR-FE is a 3.5 L (3456 cc)

if leaks are that bad
always check the engine oil level before you drive off

fixing oil leaks on motors
degrease whole motor top and bottom

start with replacing the oil sender it may be the cause of the oil light coming on
after degrease
lay cardboard or paper under the car
take out for a drive and park over the paper over night

this pin points most of the oil leak locations
leaks from a V6 motor
rocker covers/ spark plug tube 0 rings.engine seals
cam seals
front and rear engine seals leak often
sump gasket can leak

if oil consumption or light on continues
can be a failing engine oil pump
or worn main bearings giving low oil pressure to the whole engine
you could be burning oil from worn piston rings
or hardened valve stems

a mechanic can fit an oil pressure gauge to the motor when hot
to check running oil pressure to confirm low oil pressure

if engine is worn out

it is possible to fit a lower mileage used motor to your highlander
its often cheaper than and engine rebuild









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Oct 13, 2016 | Toyota Cars & Trucks

1 Answer

Astra randomly cuts out at lights and engine May be sluggish,randomly code is P0093,FUEL RAIL SENSOR?


This diagnostic trouble code (DTC) is a generic powertrain code. It is considered generic because it applies to all makes and models of vehicles (1996-newer), although specific repair steps may be slightly different depending on the model.
When the computer sets this code it senses a large fuel leak in the high pressure section of the engine. The ECM in a diesel always monitors and controls the fuel pressure from the fuel injector pump to the injectors as long as the engine is running.
To set a code P0093 the ECM must sense a sudden large drop in fuel pressure within the system. This drop in fuel pressure can be internal, external or caused by a faulty sensor signal to the ECM.
When this happens, the ECM sets the code, goes into fail-safe mode which will suspend the fuel injector pump operation and allow one minute to pull over before it shuts the engine down. It will remain in fail-safe mode until the key is off.
The engine may run again but investigate the problem first. This problem will not correct itself or go away. The engine could shut down at any time or speed.
Unlike gasoline engines with fuel injection pressures of 30 to 50 PSI, diesel engine fuel pressure runs up in the Megapascal range, from 4,500 to 30,000 PSI. It takes very high fuel pressure to force fuel into the high compression cylinder of a diesel.
As you progress in diagnosing the problem be always mindful of the fuel pressure when the engine is running. It is ridiculously high! You have a code P0093 stating there is a large fuel leak in the system. Use caution when sticking your nose under the hood of a running engine with this code, or wrenching on the fuel system.
Symptoms Symptoms of a P0093 diagnostic trouble code may include:
  • Code set and malfunction indicator lamp illumination (check engine light)
  • Engine will enter fail-safe mode and shut down within one minute
  • Possible large loss of power above idle
Causes Potential causes for this DTC include:
  • Fuel injector failure
  • Fuel line common rail leak
  • Fuel pressure sensor malfunction
  • Fuel pump or lift pump failure
  • Fuel heater constantly on
  • Fuel temperature sensor failure
  • Leaks at any point in the high pressure circuit
  • Electrical connector corrosion or seating problems
  • Fuel pressure regulator malfunction
  • Fuel filter plugged dropping the fuel line volume
  • Injector pump leak
  • Fuel control actuator failure
  • Cascade overflow valve malfunction
  • Short in the electrical harness at the injectors or to the ECM
  • Fuel pressure limiting valve
  • ECM failure
Diagnostic Steps & Possible Solutions
  • Start with the engine off and doing a walkaround inspection for obvious fuel leaks between the fuel tank and the engine.
  • Lift the hood and check the oil and level. If the oil level has risen, smell the oil. If it is heavily contaminated by fuel, an injector most likely failed in the open position. Do not start the engine again until the oil and filter is changed.
  • Look under the hood for leaks. Start at the injector pump and follow the fuel lines to the fuel injector rail. Look at the injectors for signs of leaks.
  • Pull the electrical connector off the fuel pressure sensor and look for fuel in the connector. A failed sensor will allow fuel up through the sensor into the connector.
  • Check when you last changed the fuel filter. A plugged fuel filter will drop the volume enough to set the code.
  • Check all electrical connectors on the sensors and wiring harness to the injectors for missing insulation, corrosion or loose connections. If no obvious leaks have been found, go online and look up the TSBs (technical service bulletins) for your year and make vehicle. Diesels have no lack of problems as the TSBs will indicate.
Look for the code and associated repair procedures and probable causes. Chevy and Dodge reads like a book. The TSBs will include recalls on various items as well.
Look at your warranty. Most diesel engines have long warranty periods for various items. Many cover injectors for 7 years or better and 200,000 miles.
The dealer is the next step if no deficiencies are found. Checking the fuel pressure and the operation of the ECM takes special tools for a diagnosis.
Tip: Diesels outlast a normal gasoline powered engine when properly serviced. But they demand service at specific intervals to operate properly. There is no free lunch with these. Do not use any seals or gaskets that are not OEM. The pressures and temperatures call for the use of certain materials resistant to these temperatures and pressures.

Jul 12, 2016 | Opel Astra Cars & Trucks

1 Answer

Cam shaft seal gone in a golf 1.9 diesel engine


This will require the removal of the timing belt and the pinning of the injector pump to maintain pump timing. This engine is an interference engine and valve damage will occur if not done correctly. As there is no belt replacement period specified for the belt but industry standard is 60.000 miles so with a leaking seal ( oil destroys rubber belts) it would be prudent to consider a new belt, adjustment pulley and crank shaft seal as well. Have the job done by an accredited shop conversant with your vehicle .

Sep 10, 2014 | 2008 Volkswagen Golf 1.4

1 Answer

Why diesel and engine oil can together


This is normally due to worn and leaking injector seals. The diesel bypasses the seal at the base of the injector due to the compression of the engine and blown it into the engine where it mixes with, contaminates and dilutes the oil.

You have not mentioned what vehicle it is so this is a general fault. Often if this is the case the seat where the injector is fitted needs to be cut to ensure that the new seal has a flat surface to seal against.

Apr 25, 2014 | Isuzu Trooper Cars & Trucks

1 Answer

Toyota grandhiace diesel engine 3.0 1 kz start heavy feul consumption.


check for fuel leak at the pump. pull and fit new tips to the injectors. Have the injection timing checked by an accredited diesel shop ( same one that is replacing the injector tips)

Apr 11, 2014 | 1995 Toyota Hi-Ace

1 Answer

1989 Toyota Land Cruiser (BJ70)


Fit a new water pump ,the seal is leaking and stops when it warms up.

Nov 21, 2013 | 1989 Toyota Land Cruiser

2 Answers

1998 camry oil smells like fuel, 260,000 miles. out runs strong, Just replaced the valve gaskets, can anyone help me figure out what's wrong?


These engines do have chronic oil leaks onto the exhaust, hence the burning smell. When cam cover gaskets are replaced it is best to use the genuine Toyota parts, they seem to have some quality which lasts better.

Other places which leak are the distributor shaft o-ring seal, and crankshaft nose seal, behind the timing belt sprocket. These can be replaced. The crankshaft rear main seal will leak, but is expensive, so just leave it.

Oct 21, 2012 | 1998 Toyota Camry

2 Answers

My isuzu truck mixes diesel and engine oil. what is the cause?


the injector are along top of engine , the lines all run back to a pump usually attached to engine side, only unit with multiple metal tubes running out to engine top, removal of injectors requires some special tools. this requires good diesel knowledge and tools to repair either one.

Jun 09, 2012 | Isuzu Cars & Trucks

1 Answer

What would cause diesel in the motor oil?


injector leaking from the leak off under the rocker cover is only cause that i know off ,unless they are external type if so then check the injector pump front seal if chain driven ,never seen one of these CO2 global warming machines so i cannot know what the set up is on the engine

Jun 09, 2012 | 2006 Dodge Ram

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