Question about 1995 Geo Tracker

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Intake hose on egr valve had antifreeze in it

Egr intake hose

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  • Geo Master
  • 20,706 Answers

Not a good sign. which engine, 8valve or 16v? MATTERS BIG TIME.
do you run 50% Antifreeze (AF) or just hope it dont freeze and crack the head.? (anything with AF in it can crack, anypart)
the EGR has only 3 ports.
1 is vacuum
the other 2 are exhaust.
my guess is that you removed egr, (you forgot to say)
and the black carbon ports , in valve dripped green AF.
right?
that means the intake manifold is cracked, and AF is pouring
in to there, or the head is cracked.
end story.
if the vacuum hose (you didnt say ) is full of AF, that is near impossible. its a very tiny hose.
use this page to find the correct part, and say where it leaks exactly
or post photo of object.
8v or 16V?
the 8v EGR is below the TBI
the 16v is at the rear (MPI) intake manifold very hard to get to.
http://www.fixkick.com/find-parts.html

ill take a wild guess.?
and its 8 valve engine.
part #1 EGR leaks
or was it REALLY the ISC?
the ISC has 3 hoses, not 1, , one is air, 2 are AF (water)
http://www.fixkick.com/sensors/8v-sensors.JPG

post back and we can do other tests. like compression test
or radiator leak down test. (fumes test)(

Posted on Apr 21, 2014

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Posted on Jan 02, 2017

up247
  • 3 Answers

SOURCE: 1996 Goe Prizm 1.6 P401

my first car was a 69 dart with 340 hi pro 4 speed bad *** car

Posted on Dec 20, 2008

3mac
  • 61 Answers

SOURCE: 94 Automatic Geo Metro 3 Cyl. Map Sensor - EGR Valve

Unfortunately, both of these items are equally important and repairs can't normally be avoided by taking care of your car.

Your MAP (Mass Air Pressure) Sensor measures intake manifold vacuum pressure to help control the air and fuel mixture and timing. It contains a pressure-sensitive element that connects to an electronic circuit, generating a signal that changes with pressure changes in the manifold.

Your EGR (Exhaust Gas Recirculation) valve recirculates exhaust gases through the intake manifold to be burned again, cooling peak combustion temperature. Dilutes the air and fuel mixture to keep the nitrogen oxide emissions within breathable limits. And yes, it could very well be that the EGR solenoid that is causing the issue.

Both units effect your vehicle's fuel/air mixture. This is important because your vehicle running lean/rich can cause "snowball" problems. For example, a faulty EGR can cause the vehicle to run rich/lean. If not repaired, in time, the exhaust caused by the wrong rich/lean fuel mixture can damage the O2 sensors and/or catalytic converter.

If I had to pick, I'd start with your MAP Sensor. One guess I would have is that your MAP Sensor failed and made your vehicle start burning the wrong fuel/air mixture. Assuming I'm right, this could have damaged the EGR Valve. So, I see no reason to replace the EGR Valve alone, just so it too can be damaged by the poor fuel/air mixture caused by the still-faulty MAP Sensor. If your lucky, you may see the faulty EGR code disappear once your MAP Sensor is replaced.

Hope this helps and good luck!

Posted on Jan 12, 2009

  • 398 Answers

SOURCE: egr valve location

The EGR Valve Location is typically housed on the intake manifold this schematic may help you
http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c1528008822d

Posted on Mar 07, 2009

  • 1 Answer

SOURCE: I have a 1996 geo tracker that the code reader

Had same problem and cleaning out port where the exhaust tube enters the intake solved the problem. This tube runs from near the EGR valve up to the intake. Two 10mm bolts on each end. Simple fix and cost is only time. 15min.

Posted on Dec 13, 2010

SOURCE: I replaced the EGR valve

The air flow through the EGR is usually detected by a DPFE (differential Pressure Feedback Exhaust) sensor. The DPFE is connected by two pipes/ports on the exhaust feed pipe leading to the EGR. This sensor measures the pressure difference (differential) in the two pipes when the EGR is open; the more open the EGR the more the pressure imbalance detected by the DPFE. If the pipes/ports to the DPFE become clogged or the sensor malfunctions, the signal to the ECU will be seen as incorrect as compared to how much the EGR has opened...'insufficient air flow'. It is just as likely for the DPFE to fail as the EGR when there are 'EGR problems' . Hope this gives you another thing to check

Posted on Sep 21, 2011

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My 2003 mazda6 2.3 is hard to start so I checked the egr valve for carbon ant it has antifreeze coming out of the egr valve hose why is that what can


I would do a compression test on each cylinder, sounds like a head gasket issue or a cracked head. I would say check intake but you have already addressed that, so next would be the head.

Jan 08, 2015 | 2003 Mazda Mazda6

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

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

1 Answer

Picture of egr valve and were it is located


dffc43b.jpg

Fig. 11: EGR valve and component mounting-3.0L engine


da251ab.jpg

Fig. 12: EGR valve and component mounting-3.8L engine

Removal:
  1. Disconnect the negative battery cable.
  2. If necessary, remove the air inlet tube from the throttle body and air cleaner housing.
  3. Label and detach all vacuum hoses from the EGR valve.
  4. Label and detach any electrical wiring harness connectors from the EGR valve.
  5. Disconnect the EGR valve-to-exhaust manifold tube from the EGR valve.
  6. Remove the EGR valve mounting fasteners, then separate the valve from the upper intake manifold.
  7. 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) on 3.8L engines, or to 106-159 inch lbs. (12-18 Nm) on 5.0L engines.
  2. Connect the EGR valve-to-exhaust manifold tube to the valve, then tighten the tube nut to 30 ft. lbs. (41 Nm).
  3. Connect all wiring or hoses to the EGR valve.
  4. Install the air inlet tube.
  5. Connect the negative battery cable.

Hope this helps (remember comment and rated this).

Jul 27, 2010 | 1995 Ford Windstar

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

Have coolant leak right under egr valve any ideas


check the heater hoses for breaks or pin holes i do believe the run around the EGR area and can be spraying antifreeze around there also check the water tubing going into the intake manifold for leakage as well

Jan 23, 2010 | 1998 Nissan Quest

1 Answer

How to install egr valve on 2000 mitsubishi mirage 1.5


  1. Disconnect the negative battery cable.
  2. Remove the air cleaner and intake hoses as required.
  3. If necessary, detach the EGR temperature sensor connector.
  4. Tag and disconnect the vacuum hose from the EGR valve.
  5. Remove the mounting bolts and the EGR valve from the engine.
  6. Clean the mating surfaces on the valve and the engine. Make sure to remove all gasket material.
  7. Inspect the valve for a sticking plunger, caused by excess carbon deposits. If such a condition exists, clean with appropriate solvent so valve seats correctly.
To install:
  1. Install EGR valve with a new gasket in place.
  2. Install the mounting bolts and tighten as follows:
  3. 1.5L, 1.6L, and 1.8L engines—7–10 ft. lbs. (10—15 Nm)
  4. 2.0L engines—10–15 ft. lbs. (15—22 Nm)
  5. 2.4L and 3.5L engines—16 ft. lbs. (22 Nm)
  6. 3.0L engines—8 ft. lbs. (11 Nm)
  7. Connect the vacuum hose to the EGR valve.
  8. If detached, attach the EGR temperature sensor.
  9. Install the air cleaner and air intake hoses as required.
  10. Connect the negative battery cable.
9772c4c.gif
The EGR valve is retained to the intake manifold with two bolts.

Dec 07, 2009 | 2000 Mitsubishi Mirage

1 Answer

Does anyone have engine schematics for a 2003 pontiac 3.1 V6? Or know of a site where I can find engine schematics? I have to replace an EGR Valve but don't know where it is located.


If you don't know where the EGR Valve is located, it is safe to assume that you did not properly diagnose your EGR system...how do you know the valve needs replacing?

If you are trying to fix a trouble code P0401 " Exhaust Gas Recirculation (EGR) Insufficient Flow" (This is a very common code with 3.1L GM Engines)
An EGR Valve replacement will most likely make you about $125 poorer than you were before and will not fix the problem.

Your EGR port into the intake manifold is most likely clogged up and needs to be cleaned out.

You will need a Throttle Body Gasket, an EGR Gasket, a can of ThrottleBody and Intake Cleaner, and a little antifreeze. (You will lose just a little when you remove the throttle body.)

d859ab3.gif
Remove the EGR Valve and the Throttle Body. Use a screw driver or pick to chip out the carbon buildup in the EGR port going into the intake manifold. You will probably have to work it from the intake side as well as the EGR side to get as much of the black carbon out as possible. Be careful not to let this stuff go down into the intake plenum - you will burn some valves if it gets in there. Then use the Throttle Body and Intake cleaner to finish the cleanup. (It helps to take a rag and stuff it into the intake manifold just past the EGR port to catch the gunk so it doesn't go down into the plenum...just don't forget to remove the rag before putting the Throttle Body back on)

Put everything back together and top-off your antifreeze and clear your computer codes. That should fix it.

Oct 27, 2009 | 2003 Pontiac Grand Prix

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

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