Question about 1991 Toyota Tercel

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How do I clean the EGR valve - 1991 Toyota Tercel

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  • Toyota Master
  • 2,984 Answers

I see that your part costs about $150 but, cleaning it may not work. Best bet and cheapest way would be to go to a pull a part place or look online at craigslist under your city/area and click under auto parts....those listings will be for people parting out cars and you just look for your model.

Cleaning it would not be too adviseable.

Posted on Jun 03, 2010

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Posted on Jan 02, 2017

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2 Answers

Egr valve on a mazada 2001 van have a relay or fuse


EGR valve is usually vacuum controlled because of the high temp that is fed through it.

Jan 25, 2016 | Cars & Trucks

1 Answer

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

2 Answers

EGR is dirty. how to clean one? is it best to clean an EGR or replace it?


Is the EGR valve dirty or are the EGR ports clogged? EGR valve failures are EXTREMELY RARE (although the parts retailers sell MILLIONS of them to people who nothing about EGR systems, but are trying to fix EGR codes).
Depending on which engine your RAV4 is equipped with, the intake plenum may have to be removed or partially disassembled to clean the ports out.
As for the valve itself, you can use a little carb cleaner and an old tooth brush to clean the pintle area if it is caked with carbon deposits. If the pintle lifts when vacuum is applied to the valve and the valve holds vacuum, there is no need to replace the valve. This can be tested with a hand-powered vacuum pump with a gauge like a "MightyVac". (see picture)


dttech_157.gif

Aug 06, 2011 | 1997 Toyota RAV4

2 Answers

I have a code P0401. What is this and how can I fix it?


P0401 - Exhaust Gas Recirculation Flow Insufficient Detected

Possible causes - Harness or connectors (EGR volume control valve circuit is open or shorted.)
- EGR volume control valve stuck closed
- EGR volume control solenoid valve
- Dead (Weak) battery
- EGR passage clogged
- Exhaust gas leaks Possible solution - Clean EGR Valve
- Repair EGR harness or connector
- Replaced EGR volume control solenoid valve
- Replaced EGR volume control valve

Mar 20, 2011 | 1998 Ford Taurus

2 Answers

EGR valve is being cleaned due to "Check Engine"


CLEANING THE VALVE WILL NOT RESOLVE THE ISSUE, IT SHOULD BE REPLACED.

Dec 15, 2010 | 2002 Isuzu Trooper

1 Answer

HOW DO U CLEAN AN EGR VALVE?


CLEAN EGR VALVE SOME YOU CAN DISASSEMBLE CLEAN SOME EGR VALVES YOU HAVE TO TAP PINTLE END WITH A PLASTIC HAMMER BREAK A LOOSE CARBON ACCUMULATION AND A WIRE BRUSH CAN BE USE.DONT USE ANY TYPE CLEANING SOLVENT.OR SANDBLAST IF SO YOU WILL DAMAGE EGR VALVE DIAPHRAGM.

Oct 23, 2010 | 1997 Nissan Pickup

1 Answer

Where do I find the EGR valve on a 1995 subaru Legacy 250T automatic


  1. Detach the vacuum hose from the EGR valve.
  2. Remove the two nuts which secure the EGR valve to the intake manifold assembly.
  3. Remove the valve and gasket from the manifold.
  4. Clean all gasket material from both mating surfaces.
  5. Check the vacuum hose for deterioration and replace as necessary.

To install:

  1. Inspect the exhaust gas passages in the intake manifold and clean as necessary. Clean the EGR valve assembly as necessary.
  2. Using a new gasket, install the EGR valve.
  3. Tighten the EGR valve securing nuts to 17-19 ft. lbs. (22-25 Nm).
  4. Install the hose on the EGR valve.f9ec12f.gif

Oct 22, 2010 | 1995 Subaru Legacy

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

Check engine light on when check it insufficent EGR valve


yes the passages can be cleaned. They pass exhaust gas into the intake maniflod for reburning.

It could be the DPFE that controls the EGR too. Diff. Pressure Feedback EGR.

there is also a vacuum regulator valve and a solenoid too.

Please rate as fixya if this helps.

----------------
Exhaust Gas Recirculation (EGR) Valve —3.0L (2V) Removal and Installation
  1. Disconnect the exhaust gas recirculation (EGR) valve (9D475).
    1. Disconnect the vacuum line.
    1. Disconnect EGR tube nut.
  1. Remove the EGR valve.
    • Remove the two bolts.
    • Remove and discard the gasket.
  1. NOTE: The sealing surfaces are soft metal.
    To install, reverse the removal procedure.
    • Carefully clean both sealing surfaces and install a new EGR valve gasket.
2d0d879.gif
--------------------------------------
EGR Valve —3.0L (4V) Removal and Installation
  1. Remove the EGR valve (9D475).
    1. Disconnect the vacuum line.
    1. Disconnect the EGR tube.
    1. Remove the EGR valve and discard the gaskets.
e56a6e2.gif
  1. NOTE: The EGR valve sealing surfaces are soft metal.
    To install, reverse the removal procedure.
    • Carefully clean all sealing surfaces and install new EGR valve gaskets.

Apr 07, 2009 | 2000 Mercury Sable

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