Question about Chevrolet 1500

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I have to replace EGR valve on 1999 chev pickup with 5.7liter. My question is how do you clean the carbine out of the intake manifold.

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  • boomerdav Aug 21, 2010

    I changed my question from my original to where is the EGR valve located, and do I have to remove and parts on the top of the engine to remove the EGR, and what do I clean the carbine out of the with. I understand that I use a cloth hanger and breakup the carbine and then vacuum the intake out. I guess when I change my question it didn't post there. Is there anything on top of the engine that has to be remove to replace the EGR and clean the intake. Sorry for the confusing.

  • boomerdav Aug 21, 2010

    I had another question that I should have asked first. Do I have to take anything off the top of the engine to remove the EGR valve, and also what side of the engine is the EGR located.

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  • Chevrolet Master
  • 14,036 Answers

CLEAN CARBON OUT OF INTAKE MANIFOLD BY USING A PIECE OF OLD CLOTHES RACK.VACUUM UP DEBRIS WITH SHOP VAC DONT USE SHOP VAC IF YOU SMELL GAS FUMES AROUND VECHICLE.

Posted on Aug 21, 2010

  • Jonah Oneal Aug 23, 2010

    REMOVE THE EGR VALVE CLEAN OUT SMALL HOLE IN THE INTAKE YOU WILL SEE IT SOON AS YOU REMOVE EGR VALVE BECAREFUL CLEANING HOLE DONT USE HAMMER OR PUNCHES JUST GENTLY CLEAN OUT HOLE DONT FORCE PIECE CLOTHE WIRE IN HOLE JUST WORK IT IN CAREFULLY YOU WILL SEE CARBON BUILD UP IN IT. AS YOU CLEAN IT.

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1 Answer

Where is egr valve located on 1983 chev s10 blazer


4 cylinder model the EGR valve is located between 2 & 3 cylinder on intake manifold and between Carb and valve cover it has a diaphragm cover about 3 inches round and one vacuum hose 2 bolts holds it to the intake. V-6 models EGR valve is located on drivers side of engine just behind carb and about the same size and roundness and one hose two bolts.

Nov 04, 2013 | Ford Expedition 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.

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Oct 12, 2012 | 1998 Nissan Maxima

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

3 Answers

I have a 99 f150 that has a code showing its p0402 egr valve excessive flow the engine is a 5.4 how do i fix it


First make sure all lines are connected to EGR , if not ,connect them if they are? Then remove EGR value and clean and reconnect.

Jan 24, 2010 | 1999 Ford F150 Regular Cab

2 Answers

Where is the EGR valve on 1986 Dodge Ram D50 pickup 2.0cc 4 cyl


if there pipes or tubes on top of your exhaust manifold that is where your EGR valve should be. if you want diagrams or text to help fix this problem i suggest the book from Chilton. they tend to explain thing pretty well.

Oct 01, 2009 | 1986 Dodge Ram 50

1 Answer

EGR VALVE 1999 MERCURY COUGER


SECTION 303-08: Engine Emission Control 1999 Cougar Workshop Manual REMOVAL AND INSTALLATION Exhaust Gas Recirculation (EGR) Valve Removal
  1. Remove the air cleaner outlet tube.
    1. Disconnect the intake air bypass hose.
    1. Disconnect the positive crankcase ventilation hoses.
    1. Remove the air cleaner outlet tube.
  1. Disconnect the tube from the exhaust gas recirculation valve.
  1. Remove the exhaust gas recirculation valve.
    • Disconnect the vacuum hose.
Installation
  1. sxu~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: When cleaning the gasket faces, do not allow debris to enter the intake manifold or exhaust gas recirculation valve.
    Clean the gasket faces of the intake manifold and exhaust gas recirculation valve.
  1. Install a new exhaust gas recirculation valve gasket.
  1. Position the EGR valve and install the bolts.
    • Install the vacuum hose.
  1. Connect the EGR tube.
  1. Install the idle air control valve. For additional information, refer to Section 303-14A . For additional information, refer to Section 303-14B .

Sep 15, 2009 | 1999 Mercury Cougar

1 Answer

1999 saturn s series 4 cyl. has code po405 already replaced egr valve


Hi. This code has come up for two possible reasons. the actual new egr valve has become clogged by the increasing amount of carbon that has built up in the intake manifold. when replacing th egr valve, its a good rule of thumb to use a cleaning solution to cleanse the hole that the egr valve is inserted in. make sure you clean it thoroughly inside as well. This method is good but, it dosen't always work so, the next level of cleaning the intake is to remove it and clean it manually. the next possible issue could be that the wire connectors are worn. this is highly unusual but, it may be the issue here.


Please rate and god bless:)

Apr 04, 2009 | 1999 Saturn SC

1 Answer

EGR Valve


remove the vacuum line and either 2 nuts or 2 bolts holding it to intake manifold. clean gasket material from mating surfaces and reinstall.

Jun 22, 2008 | 1984 Chevrolet El Camino

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