Question about 2000 Audi A4

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I am wondering what the part is called that

On my 2000 A4 2.8 Quattro. I am wondering what the part is called that connect the back of the manifold to the rest of the exhaust. It's a weaved mesh looking piece thats about 8 inches long

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Its called a catylic converter. if not then its a resinator. hope this helps you.

Posted on Jan 30, 2010

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Posted on Jan 02, 2017

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Torque spec on exhaust manifold for 2000 yukon xl


EXHAUST MANIFOLD BOLT TORQUE 2000 GMC Truck Yukon XL 1500 2WD 5.3L SFI 8cyl The Exhaust Manifold Bolt Torque

Exhaust manifold bolts (first pass) 11 Lb/Ft.Exhaust manifold bolts (final pass) 18 Lb/Ft.Exhaust manifold nuts 39 Lb/Ft.Exhaust manifold stud 16 Lb/Ft.Air injection reaction (AIR) Pipe to exhaust manifoldnuts 18 Lb/Ft.(AIR) Pipe to exhaust manifold studs 4 Lb/Ft.Exhaust manifold AIR pipe studs 4 Lb/Ft.Note:To torque bolts and nuts, start in center usingcrisscross pattern working outward.

May 07, 2011 | GMC Yukon XL Cars & Trucks

1 Answer

I have a 2000 Mazda Protege and i am getting the code P1141 H025 Bank 1 sensor 1 heater circuit low input. Do i need to change an oxygen sensor? What do i need to do to fix the problem?


Most likely a bad O2 sensor. Search the internet for O2 sensor info for how they work and more detail on heated O2 sensors. Sensor 1 means upstream or in the manifold. In front of the catylytic converter. There is what appears to be a small catylytic converter at the very end of the exhaust manifolds in addition to the one that looks like a normal size converter. Sensor one is at the back of the exhaust manifold between the engine and the manifold. Reference source: http://www.aa1car.com/library/o2sensor.htm

Or...

The heater circuit can be checked with a test light connected to ground. ( a test light is an ice pick looking tool with a clear handle with a 12 volt bulb inside and a ware with a clip to connect to ground, the light will light as the tip is touched to anything powered up with 12 volts and sometimes a little more and a whole lot less) Find the oxygen sensors ( their screwed into the exhaust pipes) Disconnect the electrical connectors and connect the test light to ground, with the key on test the wires in the plug connected to the vehicle. one of them should light the light, if it does reconnect it and test the rest of the sensors, recalling which wire was live. ( most are white or gray but they vary some). If all the sensors have power it's not the power but the sensor failed. with an ohm meter test the sensor for the wire that was hot to the other wire that is the same color if the snensor is open ( no circuit ) you have found the bad sensor. If you can't find power going to any of the sensors. Check the fuse boxes for blown fuses ( check them all with a test light) If you find a blown fuse replace it but go back to the wiring that connects to the sensors and you'll find someplace where the wire melted to the exhaust pipes and shorted out, blowing the fuse. The sensors short out too but not very often.

Feb 04, 2011 | 2000 Mazda Protege

1 Answer

Where are the exhaust system bolts located?


Removal & Installation 2.2L Engine To Remove:
  1. Remove or disconnect the following:
    • Negative battery cable.
    • Heat shield.
    • Oxygen sensor.
  2. Raise and safely support the vehicle.
  3. Remove exhaust pipe from the exhaust manifold.
  4. Lower the vehicle.
  5. Remove the exhaust manifold mounting nuts from the cylinder head. chevy_cav_02-04_exmanifold.gif

  6. Remove the exhaust manifold.
  7. Clean the mating surfaces.
  8. Check for cracks, broken flanges and gasket surface damage.
  9. Use a straight edge and a feeler gauge. If the flanges or the mating surfaces do not align, the manifold is warped and should be replaced.
To Install:
NOTE: The manufacturer recommends using new exhaust system nuts.
  1. Install the manifold gasket.
  2. Position the exhaust manifold to the cylinder head. Exhaust manifold 2.2L 87953055.gif

  3. Install the new exhaust manifold nuts. Tighten the nuts starting from the center and working toward the ends to 110 in lbs (12.5 Nm).
  4. Raise and safely support the vehicle.
  5. Install the exhaust pipe to the manifold using a new flex coupler gasket.
  6. Install new exhaust flange mounting nuts.
    • Tighten to 33 ft lbs (45 Nm).
  7. Lower the vehicle.
  8. Install the oxygen sensor.
  9. Install the heat shield.
  10. Connect the negative battery cable.
2.4L Engine To Remove:
  1. Disconnect the negative battery cable
  2. Disconnect the Oxygen (O2) sensor electrical connector.
  3. Remove the (O2) sensor.
  4. Raise and safely support the vehicle. Exhaust brace 2.4L 87953053.gif

  5. Remove the exhaust manifold brace-to-manifold bolt and the oil pan nuts, if necessary. Exhaust heat shield 2.4L 87953051.gif

  6. Remove the upper heat shield. NOTE: Do NOT bend the exhaust flex decoupler more than necessary to remove it. Excessive movement will damage the flex decoupler
    Exhaust flex decoupler 87953056.gif

  7. Remove the manifold-to-exhaust flex decoupler fasteners.
  8. Remove the exhaust pipe.
  9. Carefully lower the vehicle.
  10. Remove the exhaust manifold-to-cylinder head mounting nuts/bolts. Remove the exhaust manifold.
  11. Discard the gaskets and/or seals. Clean the mating surfaces.
To Install:
Exhaust manifold 2.4L 87953055.gif

  1. Install new exhaust manifold gaskets. Position the exhaust manifold on the cylinder head. Tighten the mounting bolts in sequence to 110 in lbs (12.5 Nm).
  2. Raise and safely support the vehicle.
  3. Install the exhaust manifold heat shield. Tighten the mounting bolts to 10 ft. lbs (14 Nm).
  4. Install the exhaust manifold brace-to-manifold bolt and the oil pan nuts. Tighten the mounting bolts to 41 ft lbs (56 Nm) and the nuts to 18 ft lbs (24 Nm).
  5. Position the exhaust pipe to the manifold. Install the manifold-to-flex decoupler mounting bolts. Tighten to 26 ft lbs (35 Nm).
  6. Lower the vehicle.
  7. Coat the threads with a suitable anti-seize compound and install the O2 sensor.
  8. Connect the O2 sensor electrical connector.
  9. Connect the battery ground cable and check for leaks.
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Sep 02, 2010 | 2000 Oldsmobile Alero

1 Answer

Exaught manafold leak


You state that car makes a loud noise when driving. Do you notice the sound more when you accelerate? If yes, then it could be either the exhaust manifold gasket or the donut gasket. The donut gasket is where the exhaust pipe connects to the exhaust manifold.

Jun 24, 2010 | 2000 Ford Focus

1 Answer

How many O2 sensors in a 1998 audi A4 2.8L/6 cylinder Quattro? I want ot replace ALL of them.


i think there is only one, it is connected to the exhaust manifold just before the cat, if you check all away allong you might find another just before the rear muffler?silencer/back box, the first one is called the heated oxygen sensor (ho2s) but i think there is only one...hope this helps

Feb 11, 2010 | 1998 Audi A4

1 Answer

I am wondering where the knock sensor is on a 2000 Nissan Altima


under the intake manifold(rear of the engine). To access, the manifold must be removed. You may also see it from under the vehicle, at the rear of the engine, above the exhaust. It may be possible to access with slim arms, I personally could not. Hopefully this helpd

Sep 04, 2009 | 2000 Nissan Altima

1 Answer

2000 Audi A4 quattro with abrupt gear shifting & low oil pressure


I hope that you had the proper weight oil installed, at your oil change. If your oil is up to the proper level, and it's rattling ,this is VERY bad. White smoke usually means steam in the exhaust, and that means a blown head gasket. Check your coolant level. I wouldn't drive it anymore......until someone knowledgeable can diagnose it!!!!!

May 30, 2009 | 2000 Audi A4

1 Answer

Locating and replacing oxygen sensor


Is the check engine light on with oxygen sensor codes?
If there are no problems with it leave it alone. i have seen factory sensors working good with over 300k miles on them. I recommend using dealer tune parts. at least NGK plugs. I have found misfire problems with aftermarket tune parts on several occasions.

there could be 2 oxygen sensors and they will be in the exhaust manifold or the catalytic converter or the "A" pipe between the manifold and catalytic converter. if you have the correct tools you can do it. sometimes requires special tools and rarely they are seized in the exhaust manifold and damage the manifold than it has to be replaced.

Dec 27, 2008 | 2000 Honda Civic

1 Answer

EGR VALVE


REMOVAL PROCEDURE
  1. Turn OFF the ignition.
  2. Disconnect the EGR valve electrical connector.
  3. Remove the bolt retaining the pipe assembly from the EGR valve and carefully pull the pipe assembly back.
  4. Remove the EGR valve retaining bolts.
  5. Remove EGR valve assembly.
  6. Remove the gasket.
INSTALLATION PROCEDURE
  1. Install the EGR valve with a new gasket to the intake manifold. NOTE: Refer to Fastener Notice in Service Precautions.
  2. Reinstall the bolts through the EGR valve into the intake manifold. Tighten Tighten the EGR bolts to 30 N.m (22 lb ft).
  3. Connect the exhaust pipe assembly to the EGR valve.
  4. Reinstall the exhaust pipe bolt. Tighten Tighten the nuts to 30 N.m (22 lb ft).
  5. Connect the EGR valve electrical connector

May 28, 2008 | 2000 Chevrolet Impala

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