Question about 2003 Renault 181

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As the engine heats up,gas with particle of oil goes into aircooler then into itake manifold

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  • danbetlory Jul 29, 2009

    it is a new cat.

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Your catalitic converter may be plug,the engine cannot breath

Posted on Jul 28, 2009

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I have a engine noise sounds like lifters but goes away and then comes back


What is your oil pressure gauge doing? Low oil pressue will cause lifter sound. Check your oil. A small exhaust leak will sound like lifters also, but generally will go away after the exh manifolds heat up, if they have a small crack.

Feb 28, 2016 | 2009 GMC Sierra 1500

2 Answers

There is a ticking nose on the left side of motor. they say it is valve in the itake manifold. is this a common problem?


Yes it is a common problem. You most likely have a hydraulic lifter that is not pumping up. It causes accelerated wear on the valve gear and the engine would lose a little of its power and fuel efficiency. It may not get worse but it will not go away and then it could totally fail.

Feb 25, 2015 | 2008 Dodge Charger

1 Answer

1KDFTV engine noise


  • Engine oil and filter have not been changed in a while
  • Engine oil is of insufficient quantity
  • Engine oil specification not suitable for climate condition.
  • Poor quality fuel
  • Diesel fuel filter is clogged, fuel pressure is inadequate.
  • Injectors are worn out or clogged
  • Injectors are tainted with carbon deposits
  • Injector compensation codes have not been registered on the ECU
  • Fuel rails are leaking
  • Timing belt has stretched, crankshaft and camshaft are out of sync
  • Camshaft sprocket is not aligned according to its peripheral stamp line
  • Alternator is not proving the car with enough electric power.
  • Rocker cover is not sealed perfectly, engine can't reach necessary vacuum (or pressure), manifold air pressure sensor isn't providing an accurate measurement
  • Air intake manifold, cylinder head and exhaust gas recirculation valve assembly are severely clogged up with thick coated oily carbon deposits. Air intake is impeded, exhaust recirculation valve is stuck closed
  • Injector washers are of the rubber variety and not of the highly recommended copper variety, resulting in engine "blow by" that leads to the next problem
  • Oil pickup mesh screen inside sump is clogged with carbon deposits, oil circulation within the engine is impeded. Injectors require washer replacement with the certified copper washer.This action will prevent "blow by" within the cylinder head.
  • Exhaust gas recirculation valve is not functioning properly. Check vacuum controller
  • Exhaust gas recirculation heat exchanger is clogged, it's preventing the passage of exchaust or preventing the passage of coolant
  • The engine has just been started, usually on a cold morning. The ECU is running a warm up cycle. Usually the engine runs fairly rough, though using SAE 40 instead of SAE 30 makes this warming up process less noisy

Crankshaft position sensor
This may be a common cause of misfiring. It may have been removed at some stage, the magnetic sensor will attract any metal filings or particles. A mechanic may have removed the sensor, reinstalling with small particles attached to its sensor head (the end that reads the sprocket location). The ECU then receives a less than perfect crankshaft position. Metal particles found clinging to this sensor should be removed, though its likely that the sensor would have lost some
degree of magnetism to the filings (giving a false reading) and be in need of replacement.

Reinstalling a new crankshaft position sensor
Make sure the hole that the sensor goes into is clean and free of dirt and it presses properly between the surfaces. Sometimes a new sensor has a slight imperfection on the moulded plastic, this prevents it from pressing up against its surface. Its easy to remove - just a thin bit of excess plastic.

Jan 22, 2014 | 2007 Toyota Tacoma

1 Answer

Heat comes and goes


Check the coolant level in your plastic overflow container. If it is low or empty, it may just be there isn't enough coolant passing through the heater core to give you heat. Depending on the model you have, the source of any leak will vary. On 3800 engines a likely scenario is the intake manifold gaskets. If you have one of these engines remove the plastic engine cover on top and look in the valley where the front injectors are located. If you see any coolant pooled or oil the intake manifold gaskets are at fault. Hope this helps.

Jan 17, 2013 | Buick LeSabre Cars & Trucks

1 Answer

What is the easies way to find where the antifreeze is leaking into the engine oil


it can be hard to find depending on engine some are prone to leak in certain areas. oil coolers,head gaskets, cracks, gaskets on a front cover or intake manifold. some times pulling oil pan adding florescent dye to coolant and pressurize system and watch for leak to show up some are only found after engine is torn apart and magnetic particle checked.because they only leak when hot.

Aug 04, 2012 | 2005 GMC Savana

1 Answer

I have a 2000 Mercury Cougar and the gauge inside tells me that the engine is over heating, no heat is coming from the heater when I turn it on, the fan for the engine is running at full blast, the engine...


Hi,

The overheating and lack of cabin heat both point to a failed engine thermostat which would be stuck closed. At the warm up stage, the coolant stays in the engine block to bring the engine to efficient operating temperature, then it opens and circulates the coolant through the radiator and heat core. If the thermostat is stuck closed, the engine will overheat, and coolant will never reach the heater core, and you will not get cabin heat.

Blinking oil light at idle which goes away during driving could be a low oil level, but may also be a drop in oil pressue. You could have a clogged oil fliter (at best) pickup tube, or a failing oil pump.

Mar 10, 2011 | 2000 Mercury Cougar

1 Answer

How to replace head gasket on 4 cylander


2.6L Engine
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Drain the cooling system.
  3. Relieve the fuel system pressure.
  4. Remove or disconnect the following:
    • Negative battery cable
    • Hood
    • Accessory drive belts
    • Accelerator cable
    • Positive Crankcase Ventilation (PCV) valve and hose
    • Air intake duct
    • Fuel pressure regulator vacuum line
    • Canister hose
    • Brake booster vacuum line
    • Engine wiring harness connectors at right wheel housing
    • Ground cable connector at the intake manifold, starter and firewall
    • Heated Oxygen (HO2S) sensor connector
    • Alternator wiring connectors
    • Oil pressure switch connector
    • Starter motor harness connectors
    • Ignition coil connector
    • Spark plug wires
    • Distributor
    • Exhaust front pipe
    • Exhaust Gas Recirculation (EGR) gas temperature sensor connector
    • Air pump
    • EGR pipe
    • Heat shield
    • Exhaust manifold
    • Throttle Position (TP) switch connector
    • Cooling fan
    • Water pump pulley
    • Power steering pump
    • Intake manifold
    • Crankshaft pulley
    • Front cover
    • Timing belt. Refer to the Timing Belt unit repair section.
    • Valve cover
    • Rocker arms
    • Camshaft
    • Cylinder head
Cylinder head bolt loosening sequence - 2.6L engine

tecnovative_96.gif
  1. To install:
  2. NOTE: Refer to Section 1 of this manual for the cylinder head torque sequence illustration. The illustration is located after the Torque Specification Chart.
  3. NOTE: Lubricate the cylinder head bolts with clean engine oil for assembly.
  4. Install the cylinder head with a new gasket. Tighten the bolts in sequence as follows:
  5. Step 1: 58 ft. lbs. (75 Nm)
  6. Step 2: 72 ft. lbs. (98 Nm)
    1. Install or connect the following:
    2. Camshaft
    • Rocker arms
    • Valve cover
    • Timing belt
    • Front cover
    • Crankshaft pulley. Tighten the bolt to 87 ft. lbs. (128 Nm).
    • Intake manifold
    • Power steering pump
    • Water pump pulley
    • Cooling fan
    • TP switch connector
    • Exhaust manifold
    • Heat shield
    • EGR pipe
    • Air pump
    • EGR gas temperature sensor connector
    • Exhaust front pipe
    • Distributor
    • Spark plug wires
    • Ignition coil connector
    • Starter motor harness connectors
    • Oil pressure switch connector
    • Alternator wiring connectors
    • HO2S sensor connector
    • Ground cable connector at the intake manifold, starter and firewall
    • Engine wiring harness connectors at right wheel housing
    • Brake booster vacuum line
    • Canister hose
    • Fuel pressure regulator vacuum line
    • Air intake duct
    • PCV valve and hose
    • Accelerator cable
    • Accessory drive belts
    • Hood
    • Negative battery cable
    1. Fill the cooling system.
    2. Start the engine and check for leaks.

    tecnovative_65.jpg

    Feb 05, 2011 | 1997 Isuzu Rodeo

    1 Answer

    How is the manifold removed on 2005 lincoln ls? Where is the bolt that holding it down?


    Exhaust Manifold - Removal & Installation3.0L Engine
    1. Before servicing the vehicle, please familiarize yourself with safety procedures.
    2. Remove or disconnect the following:
      Negative battery cable Heat shields Lower splash shields Exhaust front pipes Secondary air tubes Exhaust Gas Recirculation (EGR) tube Exhaust manifold

    To install:


    3ba09f1.jpg
    Fig. Right exhaust manifold torque sequence-3.0L engine


    d78e7f5.jpg
    Fig. Left exhaust manifold torque sequence-3.0L engine
    1. Install the exhaust manifolds. Tighten the fasteners in sequence as follows:
      1. Step 1: 15 ft. lbs. (20 Nm)
      2. Step 2: 15 ft. lbs. (20 Nm)
    2. Install or connect the following:
      Exhaust Gas Recirculation (EGR) tube Secondary air tubes Exhaust front pipes Lower splash shields Heat shields Negative battery cable
    3. Start the engine and check for leaks.

    continue...

    Jun 21, 2010 | 2002 Lincoln LS

    1 Answer

    It over heats and it has blue smoke the smoke doesn't last too long it only goes on when i start it. Oh and it has gas in the spark plugs and it chokes to turn on a second time i have a diagnostic machine...


    Ok, you have many issues here. the ecm is in very bad shape if the codes are unable to be extracted. this should be corrected ASAP if possible. The blue smoke is a sign of major oil consumption. this will happen if the piston ring sets are damaged. this Will allow oil to pass into the combustion chamber,in return, causing the oil to burn with the gas. this produces the blue smoke as the exhaust valve allow it to escape through the manifold and pipe. this can be corrected by pulling the entire engine and, replacing the valve seals and piston rings on all cylinders.

    These symptoms you are experiencing will require immediate attention or this engine will fail soon. the repairs i stated above, will be costly. this is deep engine repair.

    May 18, 2009 | 1999 Saturn SL

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