Question about 1992 Nissan Maxima

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Cracked hose/pipe line connected to egr and manifold

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Posted on May 18, 2010

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1 Answer

EGR Value connection I have a Daewoo Lanos SX 1.6. I noticed that the pipe from the EGR value was lying loose. I know that it's needs to be connected to the intake manifold, but can't find the spot.


Should be a vaccum hose for the top and should just mount on the plenum, there also should be a solid pipe with a nut attached on the pipe that affix's to the egr valve

Nov 17, 2016 | Daewoo Cars & Trucks

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Oil odor coming into cabin no sign of leakage on motor


If nothing else helps: odors can sometimes be confusing. Might not be engine oil smell. 1) If it is coming during accelerations or uphills it might be automatic tranny fluid boiling. Check tranny fluid level or condition. 2) check for cracks on exhaust manifold and union/joint between manifold/cat converter and the rest of exhaust pipe. 3) check CV boots for cracks and grease leaks/sprays-especially if CAT converter is bellow CV joint/boot.

Feb 06, 2015 | 2004 Jeep Liberty

1 Answer

Hey. I need a picture or diagram of location vacuum hoses/lines for a 2003 GMC yukon xl? How many lines/hoses are there? My truck engine came on and lost of power and rough idle. They say it a crack r


There are only 2 vacuum hoses on that engine Sean. One from the intake to the vacuum brake booster, One to the fuel pressure regulator. pull the small hose off of the fuel press regulator and see if gas/fuel is present. if so, replace or have the regulator replaced. typically, I find problems with the EGR tube being rotted and sucking air. this causes a lean code usually. you can spray the EGR tube to check it by spraying choke cleaner into the silver portion of the sleeve around it. if you notice the idle smooths out or picks up, you need to replace the egr pipe which includes both pipes being from the right side exhaust manifold to the intake with the egr pedestal attached to them. good luck, keep me posted on your progress

Jan 07, 2015 | 2003 GMC Yukon XL

1 Answer

Code 1405


Hi there:

The fault code P1405 in most case is a bad DPFE (Differential EGR Pressure Feed Back) sensor, or, a plugged or cracked hose to it.



Locate the DPFE sensor on the driver side of the intake manifold, and has 2 hoses and a 3-wire electrical connector on it (if the sensor has been replaced, it may be black plastic instead of aluminum).

Inspect the 2 hoses that run from the DPFE sensor to the EGR supply pipe for leaks or blockage. Make sure the hoses are connected securely at both ends.


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.


Thank you for using FixYa, have a nice day.

Oct 04, 2012 | 2000 Ford Expedition

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

    2 Answers

    Need to replace the intake manifold


    3.8L Engine (most common) Upper Intake Manifold To Remove:
    1. Drain the cooling system.
    2. Remove or disconnect the following:
      • Negative battery cable.
      • Fuel injector sight shield.
      • Air cleaner intake duct.
      • Right spark plug wires from the ignition control module and reposition.
    3. Relieve the fuel pressure.
    4. Remove or disconnect the following:
      • Fuel rail assembly.
      • Brake booster hose from the vacuum source manifold in the upper intake manifold.
      • Exhaust Gas Recirculation Valve (EGR) wiring harness heat shield nut, bolt and the EGR heat shield.
      • Throttle body support bracket upper bolt.
    5. Disconnect the electrical connectors from the following:
      • EVAP purge solenoid
      • Throttle Position (T/P) sensor
      • Idle Air Control (IAC) valve
      • Manifold Absolute Pressure (MAP) sensor
      • Mass Air Flow (MAF) sensor
      • EVAP purge solenoid vacuum line from the throttle body.
      • Accelerator and the cruise control cables with the bracket from the throttle body.
    6. Remove or disconnect the following:
      • Upper intake manifold bolts and stud.
      • Clean the upper intake manifold bolt threads.
    7. Remove or disconnect the following:
      • Upper intake manifold by lifting the back of the intake and sliding the manifold forward from the throttle body support bracket.
      • Upper-to-lower intake manifold carrier gasket from the upper intake manifold.
    8. If the upper intake manifold is being replaced, remove the following:
      • Throttle body assembly.
      • Manifold Absolute Pressure (MAP) sensor.
      • Positive Crankcase Ventilation (PCV) valve.
      • Vacuum source manifold.
    Upper intake manifold bolt torque sequence (3.8L engine) gm-03-38-530.gif

    To Install:
    1. If the manifold was replaced, install or connect the following:
      • Vacuum source manifold.
      • Positive Crankcase Ventilation (PCV) valve.
      • Manifold Absolute Pressure (MAP) sensor.
      • Throttle body assembly.
      • Upper-to-lower intake manifold carrier gasket to the upper intake manifold.
    2. Carefully place the upper intake manifold onto the lower intake manifold. Ensure that the alignment pins in the upper intake manifold align with the holes in the lower intake manifold. NOTE: Apply thread lock compound, to the bolt threads before assembly.
    3. Install or connect the following:
      • Upper intake manifold. Tighten the upper intake manifold bolts in sequence to 89 in lbs (10 Nm)
      • Accelerator and the cruise control cables with the bracket to the throttle body.
      • EVAP purge solenoid vacuum line to the throttle body.
    4. Connect the electrical connectors to the following:
      • Mass Air Flow (MAF) sensor
      • Manifold Absolute Pressure (MAP) sensor
      • Idle Air Control (IAC) valve
      • Throttle Position (T/P) sensor
      • EVAP purge solenoid
    5. Install or connect the following:
      • Throttle body upper support bracket bolt. Tighten the bolt to 89 in lbs (10 Nm)
      • EGR valve wiring harness heat shield, nut and the bolt. Tighten the nut and the bolt to 89 in lbs (10 Nm)
      • Brake booster hose to the vacuum source manifold.
      • Fuel rail assembly.
      • Right spark plug wires.
      • Air cleaner intake duct.
      • Fuel injector sight shield.
    6. Connect the negative battery cable.
    7. Fill the cooling system.
    8. Inspect for fluid or vacuum leaks.
    Lower Intake Manifold (W/O Supercharger) To Remove:
    1. Remove or disconnect the following:
      • Upper intake manifold.
      • Generator brace.
      • Drive belt tensioner with the mounting bracket and the heater water bypass inlet pipe.
      • Exhaust gas recirculation EGR outlet pipe bolt from the lower intake manifold.
      • Radiator inlet hose from the water outlet housing.
      • ECT sensor electrical connector.
      • Right upper engine mount strut bracket.
      • Generator brace bracket bolts.
      • Generator brace bracket.
      • Lower intake manifold bolts.
      • Lower intake manifold.
      • Lower intake manifold seals.
      • Lower intake manifold gaskets.
    2. If replacing the lower intake manifold, Remove or disconnect:
      • Water outlet housing bolt and stud
      • Water outlet housing
      • Gasket and the thermostat.
      • ECT sensor.
    3. Inspect the flatness of inlet flanges.
    4. Clean the intake manifold mating surfaces.
    5. Clean the intake manifold bolts and bolt holes of adhesive compound.
    To Install:
    1. If removed, install the ECT sensor.
      • Tighten the ECT sensor to 18 ft. lbs. (25 Nm)
    2. If removed, install the thermostat, the gasket, and the water outlet housing.
    3. If removed, install the water outlet housing bolt and the stud.
      • Tighten the bolt and stud to 20 ft. lbs. (27 Nm)
    4. Install or connect the following:
      • Lower intake manifold gaskets. NOTE: Apply sealer GM P/N 12346286 (Canadian P/N 10953472) or equivalent to the ends of the intake manifold seals.
      • Lower intake manifold seals.
      • Lower intake manifold.
      • Lower intake manifold bolts.
      NOTE: Apply thread lock compound GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the two hidden bolts and ensure they are installed.
    5. Tighten the lower intake manifold bolts in sequence to 11 ft. lbs. (15 Nm) gmpc_v6_5.gif

    6. Install or connect the following:
      • Generator brace bracket.
      • Generator brace bracket bolts. Tighten the bolts to 37 ft. lbs. (50 Nm)
      • Right upper engine mount strut bracket.
      • ECT sensor electrical connector.
      • Radiator inlet hose to the water outlet housing.
      • EGR outlet pipe to the lower intake manifold.
      • EGR outlet pipe bolt to the lower intake manifold. Tighten the bolt to 21 ft. lbs. (29 Nm)
      • Drive belt tensioner.
      • Generator brace.
      • Upper intake manifold.
    7. Inspect for leaks.
    Lower Intake Manifold (W/ Supercharger) To Remove:
    1. Disconnect the negative battery cable.
    2. Drain the cooling system.
    3. Remove the supercharger.
    4. Remove the thermostat housing.
    5. Remove the EGR pipe at the intake manifold.
    6. Disconnect the electrical connection at the temperature sensor.
    7. Remove the intake manifold and gaskets.
    NOTE: The coolant bypass tube will release from the intake manifold when the manifold is removed.
    To Install:
    1. Clean the gasket sealing surfaces.
    2. Install the intake manifold gaskets.
    3. Align the coolant bypass tube with the opening in the intake manifold and install the manifold. Tighten the bolts to 11 lb ft (15 Nm).
    4. Install the electrical connector to the temperature sensor.
    5. Install the EGR pipe to the intake manifold.
    6. Install the thermostat housing.
    7. Install the supercharger.
    8. Fill the cooling system.
    9. Connect the negative battery cable.

    Aug 05, 2010 | 1997 Pontiac Grand Prix

    1 Answer

    Ford focus 2002, When accelerating sounds like exhaust is blowing. Replaced exhaust but noise still there, any ideas?


    Check the EGR valve pipe connection and mounting gasket, also check the EGR pipe connection at the exhaust manifold. Check the exhaust manifold for cracks and gasket leaks, hope this helps, let me know.

    Jul 01, 2010 | 2002 Ford SVT Focus

    2 Answers

    1999 ford E150 starts and runs fine, after warm up at idle, rpms varry. will stall at stops but starts and runs fine at high idle and on highway. Trouble codes are 02s bank 1 and bank 2, both lean. also...


    I had same problems w/ my 99 Chateau 5.4L. EGR-Ensure port into intake and pipe from exhaust are clear using low pressure compressed air. Pull vacuum on EGR diaphram and ensure it opens and closes smoothly. If this checks out then problem is probably in the EGR sensor (mine had both ports and hoses clogged w/ aluminum corrosion from the sensor, cleaned out hoses and lines to exhaust pipe w/ compressed air, ended up having to change the sensor). IDLE AND O2 SENSOR- Caused by vacuum leaks in the PCV line (line is plastic wrapped w/foam insulation; was cracked under the insulation; both rubber end connectors at manifold and pcv valve were softened, collapsed and leaking; allowing excess air into the manifold after the mass air flow sensor which throws off the O2 sensors. engine computer does not read O2 sensors until after engine is warmed up which is why idle is fine until then).

    Sep 23, 2009 | 1999 Ford Econoline

    1 Answer

    How do you replace the egr valve in a 1997 chrysler concorde lx


    Chrysler Concorde 1993-1997 3.5L MFI 6cyl
    Exhaust Gas Recirculation System
    Operation

    This system reduces the amount of oxides of nitrogen (NO x ) in the exhaust by allowing a predetermined amount of exhaust gases to recirculate and dilute the incoming fuel/air mixture. The diluted air/fuel mixture reduces peak flame temperature during combustion, which in turn inhibits the production of Nitrogen oxides. The principal components of the system are:
    - EGR tube (connects a passage in the intake manifold to the exhaust manifold)
    - EGR valve
    - Electronic EGR Transducer
    - Vacuum hoses


    Component and System Testing
    1. Check the condition of all of the EGR system hoses and tubes for leaks, hardening or kinks on the rubber hoses. Repair and correct these conditions before proceeding any testing.
    2. Be sure that the hoses at both of the EGR valve and EGR valve control are connected to the proper fittings.
    3. Be sure the electrical connector is firmly attached at the valve control.
    4. To check the EGR system operation, connect the DRB III scan tool or equivalent to the 16-way data link connector. The data link connector is located on the lower edge of the instrument panel near the steering column. Follow the scan tool instructions.
    5. After checking the system with the DRB III scan tool, proceed to the EGR valve leak and control tests, then repair as necessary.

    Removal & Installation
    EGR Valve and Transducer

    395f8b9.jpg

    EGR valve and transducer assembly-3.5 engine



    025dc6c.jpg

    The EGR valve attaches to the back of the cylinder head-3.5L engine


    bc80254.jpg

    Loosen, but do not remove, the EGR tube to intake manifold screws

    The EGR valve attaches to the rear of the right cylinder head.
    1. Remove the vacuum tube from the electric EGR transducer solenoid. Inspect the vacuum lines for cracking, poor seal due to hardness, or other problems. Replace with new hoses if necessary.
    2. Remove the electrical connector from the solenoid.
    3. Slide the transducer up and out of the mounting bracket.
    4. Loosen, but do not remove, the EGR tube to the intake manifold screws.
    5. Remove the EGR tube lower screws at the valve.
    6. Remove the EGR valve and transducer.
    7. Clean both gasket surfaces and check for any signs of leakage or cracks. Replace the components if any such damage is found or if the valve fails the tests.

    To install:
    1. Loosely install the EGR valve and a new gasket onto the cylinder head.
    2. Using a new gasket, attach the EGR tube to the valve and tighten the screws to 95 inch lbs. (11 Nm).
    3. Tighten the EGR tube to the intake manifold plenum screws to 16 ft. lbs. (22 Nm).
    4. Tighten the EGR valve to the cylinder head screws to 16 ft. lbs. (22 Nm).
    5. Reconnect the transducer solenoid to the vacuum fitting on the manifold.
    6. Slide the transducer into the bracket.
    7. Reconnect the vacuum lines and electrical wires to the EGR transducer.
    continue...

    Sep 04, 2009 | 1997 Chrysler Concorde

    1 Answer

    I have a 1997 Mercury Villager which has a obd code of P400. I changed the egr valve but the code returns. Could the problem be something different or could the valve be defective.


    without having a scanner in front of me(i have one at work and also snap-on shopkey) i work on alot of ford cars and usually the egr is not the problem-the DPFE SENSOR usually is. they are known to go bad on fords and sometimes the replacement part is an "updated" part which fixes the problem.the DPFE is a square or rectangular black plastic piece with one electrical plug and 2 vacuum hoses attached to it.the 2 hoses connect to a metal pipe that will be attached to the exhaust manifold.the DPFE controls the EGR valve.also make sure the 2 hoses are not cracked or disconnected.also check the vacuum hose going to the EGR( if there is one).by the way the 2 rubber hoses connected to the DPFE are NOT normal vacuum hoses.they are special high-heat hoses.

    Aug 29, 2009 | 1997 Mercury Villager

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