Question about 2003 BMW 330

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Engine oil filled intake, all cyl full of oil, hydraulically lock

Pulled plugs and motor turns over freely, could this be egr valve, or vacuum

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Either the crankcase was overfilled or the Positive Crankcase Ventilation system is plugged up or has no vacuum to the PCV valve, possible collapsed vacuum supply hose.

Posted on Apr 12, 2009

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What is a egr valve


  1. Install a tachometer on the engine, following the manufacturer's instructions.
  2. Detach the engine wiring harness connector from the Idle Air Control (IAC) solenoid.
  3. Disconnect and plug the vacuum supply hose from the EGR valve.
  4. Start the engine, then apply the parking brake, block the rear wheels and position the transmission in Neutral.
  5. Observe and note the idle speed.
If the engine will not idle with the IAC solenoid disconnected, provide an air bypass to the engine by slightly opening the throttle plate or by creating an intake vacuum leak. Do not allow the idle speed to exceed typical idle rpm.
Using a hand-held vacuum pump, slowly apply 5-10 in. Hg (17-34 kPa) of vacuum to the EGR valve nipple.
  1. If the idle speed drops more than 100 rpm with the vacuum applied and returns to normal after the vacuum is removed, the EGR valve is OK.
  2. If the idle speed does not drop more than 100 rpm with the vacuum applied and return to normal after the vacuum is removed, inspect the EGR valve for a blockage; clean it if a blockage is found. Replace the EGR valve if no blockage is found, or if cleaning the valve does not remedy the malfunction.


EGR Valve Removal & Install
3.0L OHV (2 valve) and 3.4L SHO engines

b9175c5.jpg

Fig. : EGR mounting-3.0L OHV (2 valve) engine

5fcd84e.jpg

Fig. : EGR mounting-3.4L (SHO) engine

4552fc2.jpg

Fig. : Remove the two retaining bolts and...

b849310.jpg

Fig.: ... remove the valve from the intake manifold

795549d.jpg

Fig.: Thoroughly clean the mating surfaces of the manifold and the EGR valve (if being reused)
  1. Disconnect the negative battery cable.
  2. Remove the vacuum hose from the EGR valve.
  3. Using a 22mm wrench or crowfoot, disconnect the EGR valve-to-exhaust manifold tube from the EGR valve.
  4. Remove the EGR valve mounting fasteners, then separate the valve from the intake manifold.
  5. Remove and discard the old EGR valve gasket, and clean the gasket mating surfaces on the valve and the intake manifold.
To install:
  1. Install the EGR valve, along with a new gasket, on the upper intake manifold, then install and tighten the mounting bolts to 15-22 ft. lbs. (20-30 Nm).
  2. Connect the EGR valve-to-exhaust manifold tube to the valve, then tighten the tube nut to 26-47 ft. lbs. (35-65 Nm).
  3. Connect the vacuum hose to the EGR valve.
  4. Connect the negative battery cable.

3.0L OHC (4 valve)

d8a563e.jpg

Fig. : EGR mounting-3.0L OHC (4 valve) engine
  1. Disconnect the negative battery cable.
  2. Remove the vacuum hose from the EGR valve.
  3. Remove the two EGR tube-to-EGR valve retaining nuts.
  4. Remove the EGR valve mounting fasteners, then separate the valve from the intake manifold.
  5. Remove and discard the old EGR valve gasket, and clean the gasket mating surfaces on the valve and the intake manifold.
To install:
  1. Install the EGR valve, along with a new gasket, on the upper intake manifold, then install and tighten the mounting bolts to 15-22 ft. lbs. (20-30 Nm).
  2. Connect the EGR valve-to-EGR tube, then tighten the retaining nuts.
  3. Connect the vacuum hose to the EGR valve.
  4. Connect the negative battery cable.

Tell us news.

Oct 12, 2012 | 1998 Nissan Maxima

1 Answer

95 cougar 4.6l wont pass emissions heavy smoke out tailpipe but runs fine spark plugs are new,no misfires, rechecked plugs and are not oil or fuel soaked. all fluid levels are staying the same. have egr...


YOUR EGR VALVE IS A PRESSURE FEED BACK ELECTRONIC VALVE.IF YOU USE A HAND VACCUM PUMP AND PUMP 5 HG TO EGR VALVE THE IDLE SPEED IS NOT SUPPOSE TO DROP AND ENGINE SHOULD NOT STALL OUT,YOUR EGR VALVE PAST THE VACUUM TEST.PROBLEM COULD BE PRESSURE TRANSDUCER OR THE EGR VALVE INTAKE PORT HOLES WHERE EGR VALVE SIT IS STOPPED UP WITH CARBON.CLEAN CARBON HOLE IN THE INTAKE WHERE EGR VALVE MOUNT TO.YOU CAN USE SMALL SCREW DRIVER OR PIECE OLD CLOTHES HANGER SEE WHAT HAPPENS.

Oct 12, 2011 | 1995 Mercury Cougar

2 Answers

Engin light #po406 2005 ram quad cab


P0406 - Exhaust Gas Recirculation Sensor A Circuit High

Early Models : The EGR valve control the amount of exhaust gas routed to the intake manifold. Vacuum is applied to the EGR valve in response to the throttle opening. The vacuum control the movement of the taper valve connected to the vacuum diaphragm in the EGR valve.

zjlimited_230.gif

Late Models : The EGR volume control valve uses a step motor to control the flow rate of EGR from exhaust manifold. This motor has four winding phases. It operates according to the output pulse signal of the ECM. Two windings are turned ON and OFF in sequence. Each time an ON pulse is issued, the valve opens or closes, changing the flow rate. When no change in the flow rate is needed, the ECM does not issue the pulse signal. A certain voltage signal is issued so that the valve remains at that particular opening.

zjlimited_231.gif

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine hesitation

Possible causes
- Harness or connectors (EGR volume control valve circuit is open or shorted.)
- EGR volume control solenoid valve
- EGR temperature sensor and circuit

Possible solution
- Repair EGR harness or connector
- Replaced EGR volume control solenoid valve
- Replaced EGR volume control valve
When is the code detected?
- An improper voltage signal is sent to ECM through the valve


Hope helps.

Mar 06, 2011 | 2005 Dodge Ram

1 Answer

My 99 Park ave will stall at red light. Or sometimes idle will fluxuate from 500 to 2000. Somebody mentioned the air mass filter, another mentioned the throttle celenoid. These are expensive items to guess...


I would check the fuel pressure regulator. It is located on the fuel rail. It is round, about a quarter size and has a vacuum line going to it. If the regulator is leaking gas than it can cause this problem. Pull off the vacuum line that goes to the regulator. Be absolutely sure there is no gas in the vacuum line. If there is, the diaphragm has ruptured and there is gas entering the engine that is not accounted for and the regulator will need to be replaced!
Also, you might have an air or a vacuum leak. This is very common! Open the hood and listen for a hissing sound when the engine is running.
Unmetered air can enter the engine through a vacuum leak, a dirty airflow sensor that is not reading airflow accurately, an EGR valve is not closing and is leaking exhaust into the intake manifold, an EGR valve that is allowing too much flow.
If it is hard to pinpoint take some brake cleaner or starting fluid around the intake manifold and vacuum lines and see if the engine stumbles or if the idle is affected. Be extremely careful when doing this!
Also, your throttle body may be carboned up and need to be cleaned! This can cause all sorts of idle and hesitation problems. This is caused by the throttle plate not seating properly. The First thing i would do is clean out the throttle body with some throttle plate and intake cleaner and a small brush. Another common cause would be the Idle Air Control motor. This is very common on older cars. The IAC motor gets lazy and cant keep up with the fast idle changes. Also when the IAC motor is out, I rec to check the passages for carbon build up. If they are plugged they need to be cleaned out.
Check for the following conditions:
Poor connection at PCM or IAC motor. Inspect harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, and poor terminal to wire connection.
Damaged harness. Inspect the wiring harness for damage.
Restricted air intake system. Check for a possible collapsed air intake duct, restricted air filter element, or foreign objects blocking the air intake system.
Throttle body. Check for objects blocking the IAC passage or throttle bore, excessive deposits in the IAC passage and on the IAC pintle, and excessive deposits in the throttle bore and on the throttle plate. Check for a sticking throttle plate. Also inspect the IAC passage for deposits or objects which will not allow the IAC pintle to fully extend.
Vacuum leak. Check for a condition that causes a vacuum leak, such as disconnected or damaged hoses, leaks at EGR valve and EGR pipe to intake manifold, leaks at throttle body, faulty or incorrectly installed PCV valve, leaks at intake manifold brake booster hose disconnected, oil filler cap, oil level indicator loose or missing, etc..

The SES light is the Service engine soon light. If you get a chance to have the computer scanned, let me know the codes and I will be able to get you more specific information.

Feb 27, 2011 | Buick Park Avenue Cars & Trucks

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

    3 Answers

    EGR Valve not working


    EGR Valve Testing
    1. Install a tachometer on the engine, following the manufacturer's instructions.
    2. Detach the engine wiring harness connector from the Idle Air Control (IAC) solenoid.
    3. Disconnect and plug the vacuum supply hose from the EGR valve.
    4. Start the engine, then apply the parking brake, block the rear wheels and position the transmission in Neutral.
    5. Observe and note the idle speed.
    If the engine will not idle with the IAC solenoid disconnected, provide an air bypass to the engine by slightly opening the throttle plate or by creating an intake vacuum leak. Do not allow the idle speed to exceed typical idle rpm.
    Using a hand-held vacuum pump, slowly apply 5-10 in. Hg (17-34 kPa) of vacuum to the EGR valve nipple.
    1. If the idle speed drops more than 100 rpm with the vacuum applied and returns to normal after the vacuum is removed, the EGR valve is OK.
    2. If the idle speed does not drop more than 100 rpm with the vacuum applied and return to normal after the vacuum is removed, inspect the EGR valve for a blockage; clean it if a blockage is found. Replace the EGR valve if no blockage is found, or if cleaning the valve does not remedy the malfunction.


    EGR Valve Removal & Install
    3.0L OHV (2 valve) and 3.4L SHO engines

    b9175c5.jpg

    Fig. : EGR mounting-3.0L OHV (2 valve) engine

    5fcd84e.jpg

    Fig. : EGR mounting-3.4L (SHO) engine

    4552fc2.jpg

    Fig. : Remove the two retaining bolts and...

    b849310.jpg

    Fig.: ... remove the valve from the intake manifold

    795549d.jpg

    Fig.: Thoroughly clean the mating surfaces of the manifold and the EGR valve (if being reused)
    1. Disconnect the negative battery cable.
    2. Remove the vacuum hose from the EGR valve.
    3. Using a 22mm wrench or crowfoot, disconnect the EGR valve-to-exhaust manifold tube from the EGR valve.
    4. Remove the EGR valve mounting fasteners, then separate the valve from the intake manifold.
    5. Remove and discard the old EGR valve gasket, and clean the gasket mating surfaces on the valve and the intake manifold.
    To install:
    1. Install the EGR valve, along with a new gasket, on the upper intake manifold, then install and tighten the mounting bolts to 15-22 ft. lbs. (20-30 Nm).
    2. Connect the EGR valve-to-exhaust manifold tube to the valve, then tighten the tube nut to 26-47 ft. lbs. (35-65 Nm).
    3. Connect the vacuum hose to the EGR valve.
    4. Connect the negative battery cable.

    3.0L OHC (4 valve)

    d8a563e.jpg

    Fig. : EGR mounting-3.0L OHC (4 valve) engine
    1. Disconnect the negative battery cable.
    2. Remove the vacuum hose from the EGR valve.
    3. Remove the two EGR tube-to-EGR valve retaining nuts.
    4. Remove the EGR valve mounting fasteners, then separate the valve from the intake manifold.
    5. Remove and discard the old EGR valve gasket, and clean the gasket mating surfaces on the valve and the intake manifold.
    To install:
    1. Install the EGR valve, along with a new gasket, on the upper intake manifold, then install and tighten the mounting bolts to 15-22 ft. lbs. (20-30 Nm).
    2. Connect the EGR valve-to-EGR tube, then tighten the retaining nuts.
    3. Connect the vacuum hose to the EGR valve.
    4. Connect the negative battery cable.

    Tell us news.

    May 04, 2010 | 1999 Mercury Sable

    1 Answer

    2000 excursion misfire on cyl 4. traded plug,


    Remove the plug and check the compression for that cylinder it should be between 120 psi and 150 psi, if it is low it is a mechanical issue (bad valve or worn piston rings). If commpression is low remove the valve cover and turn over the motor confirming that both valves for that cylinder are opening to there correct travel or height if not it is a faulty hydraulic lifter or worn cam. Also check the valve lash clearance the clearance is usually .012" for the exhaust valve and .008" for the intake valve to check the lash turn the motor over until the valve shuts completely for each valve, then use a feeler gauge go no go procedure. Has the wire been replaced for the plug? If this motor has coil on plug type disregard plug wire question.

    Jan 05, 2010 | 2000 Ford Excursion

    3 Answers

    My 1995 Subaru legacy randomly decelerates. It does not stall right away, but I will be pushing down on the gas as far as it goes and it will just keep slowing down, until finally I need to pull over and...


    Usually random engine decells are caused by not changing the fuel filter and/or EGR concerns. The easiest way to rule out the EGR is to pull off the vacuum line going to the EGR housing and plug it with a small bolt or ideally a golf ball "T". The EGR is designed to allow exhaust gasses to be recirculated back into the intake system usually during freeway cruising and long uphill pulls to prevent engine over temp in the cylinders. The exhaust gasses slightly hinder the fuel combustion from burning at it's full heat intensity. Once you have plugged the EGR tube you will just need to drive the vehicle to see if any thing has changed. If nothing changes, I would start looking at ignition concerns for ex: spark plugs, plug wires, coil, coil connector for loose pins or brittle and/or broken wires. I hope this info helps...(subytech1)...
    62664019

    Jun 16, 2009 | 1995 Subaru Legacy

    2 Answers

    How do you clean the EGR valve on a 99' Honda Civic?


    Pull vacuum on egr valve with engine idling and see if engine stumbles and tries to die until vacuum is released. If this DOES NOT happen the egr exhaust passage is plugged will need to remove egr valve assembly and remove carbon from passage into cylinder head.

    Mar 29, 2009 | 1999 Honda Civic

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