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When replacing the EGR valve on a 2005 Mazda MPV 3.0L engine, what's the best way to remove the nut in the rear? I have tried everything and can't get it loose.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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emissionwiz
  • 76846 Answers

SOURCE: water pump replacement in a 2002 Mazda MPV

The reason is the water pump is driven off the timing belt, extra parts and allot more labor. No the eng does not have to be removed, labor time around 4 hours, parts about, about $125 US for parts, if it is a dealer add $75 US

Posted on Jan 08, 2009

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  • 1596 Answers

SOURCE: 2005 Dodge 1500 code p0404 EGR valve.

The electronic EGR valve and solenoid assembly is attached to the rear of the left cylinder head ,

  1. Remove electrical connector (5) at top of EGR valve solenoid.
  2. Remove tube mounting bolt (1) at intake manifold.
  1. Remove two bolts (4) connecting EGR tube (1) to valve assembly.
  2. Remove gasket located between EGR tube flange and EGR valve assembly.
  3. Remove two EGR valve mounting bolts (5).
  4. Separate valve assembly (3) from engine.
  5. Remove and discard metal gasket located between cylinder head and valve assembly.
INSTALLATION
  1. Clean area at rear of left cylinder head where it joins base of EGR valve.
  2. Clean EGR tube where it joins EGR valve.
  3. Position new gasket between EGR valve and cylinder head.
  4. Position EGR valve to cylinder head. Install and tighten two bolts (5). Refer to Torque Specifications.
  5. Position new gasket between EGR tube flange and EGR valve assembly.
  6. Position EGR tube (1) to side of EGR valve and into intake manifold.
    1. Install EGR tube flange bolt (1) at intake manifold. Tighten bolt. Refer to Torque Specifications.
    2. Connect electrical connector (5) to top of EGR valve solenoid (2).Do a final tightening of two EGR tube bolts (4). Refer to Torque Specifications

Posted on Feb 05, 2009

  • 116 Answers

SOURCE: egr valve dodge durango

if this is a 4.7l engine, the valve is on the left rear of the intake. loosen the 8mm bolts that hold the egr intake tube to the egr valve, remove the egr bolts, disconnect wiring, remove valve and tube together, attach intake tube loosely to new valve, install new valve, tighten tube bolts to egr using a swivel socket, this is not a 5 minute job, so dont attempt unless you have some time and patience.

Posted on Apr 24, 2009

jasperoni
  • 203 Answers

SOURCE: Manual for replacing a EGR valve.

This is a common problem with the 104 engine. I'm assuming it is a c 280. First you need to check a couple of things. Below your intake manifold there is a source vac. line running to a switchover valve located under the plastic cover on your front cam cover. that switch over valve operates your 2ndary air inj. and egr pipes. The codes you have are saying that these 2 systems are not operating. If the source is good take of the plastic cover on your valve cover(held in by 5mm. allen head bolts). the 2 vac lines running under that trough are running to your egr and your 2ndary inj. the 1st is the air inj. the rear one is your e.g.r. valve. If these systems just plain were not operating it would not cause your car to run poorly cold unless there was a vac. leak. Take a vac. pump and apply press. to your e.g.r. valve with engine running and you should notice a rough run when vac. is applied. The 2ndary air inj. is more complicated to test because there is more involved. Fixing this vac. leak will help get your adaptations under control and your vehicle will run a lot better

Posted on May 29, 2009

ZJLimited
  • 17970 Answers

SOURCE: egr valve location on dodge ram 2005 4.7

The EGR, or exhaust gas recirculation valve, takes inert exhaust gasses drawn from the exhaust system and reintroduces them into the combustion chamber through the intake manifold. This process lowers the peak combustion temperature and helps combat the formation of Nitrous Oxide (NOx) in the exhaust.

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  1. Separate the intake ducts from the air cleaner assembly by loosening the retaining clamps and pulling the ducts away from the housing.
  2. Disconnect the vacuum line from the air cleaner assembly.
  3. Remove the wing nut that secures the air cleaner housing lid to the base.
  4. Remove both the air cleaner hosing lid and base.
  5. Locate the EGR valve. Look at the front of intake manifold. The EGR valve will be bolted to the intake manifold just in front of the carburetor.
I hope help you with this. Good luck.

Posted on Sep 07, 2009

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The electronic EGR valve and solenoid assembly is attached to the rear of the left cylinder head ,

  1. Remove electrical connector (5) at top of EGR valve solenoid.
  2. Remove tube mounting bolt (1) at intake manifold.
  1. Remove two bolts (4) connecting EGR tube (1) to valve assembly.
  2. Remove gasket located between EGR tube flange and EGR valve assembly.
  3. Remove two EGR valve mounting bolts (5).
  4. Separate valve assembly (3) from engine.
  5. Remove and discard metal gasket located between cylinder head and valve assembly.
INSTALLATION
  1. Clean area at rear of left cylinder head where it joins base of EGR valve.
  2. Clean EGR tube where it joins EGR valve.
  3. Position new gasket between EGR valve and cylinder head.
  4. Position EGR valve to cylinder head. Install and tighten two bolts (5). Refer to Torque Specifications.
  5. Position new gasket between EGR tube flange and EGR valve assembly.
  6. Position EGR tube (1) to side of EGR valve and into intake manifold.
    1. Install EGR tube flange bolt (1) at intake manifold. Tighten bolt. Refer to Torque Specifications.
    2. Connect electrical connector (5) to top of EGR valve solenoid (2).Do a final tightening of two EGR tube bolts (4). Refer to Torque Specifications

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