Question about 1982 Ford Mustang

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Need to know why when i put a vacuum line to my egr valve my car dies? the car is a 1980 3.3

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The vacuum line to the EGR valve should not have any vacuum on it when it is at idle or it will stall the engine. If there is no EGR control unit or transducer, then it should have a ported vacuum source, and only have vacuum when the throttle is opened.

Posted on Apr 28, 2010

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Cause it opens the port to return unburn gases its normal

Posted on Apr 28, 2010

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1 Answer

I NEED TO REMOVE THE EGR VALVE


The Exhaust Gas Recirculation valve does just what the name implies: it diverts some exhau st gases back into the intake system at low engine speeds. This lowers combustion temperature to reduce NOx levels. It also reduces throttle response and bottom-end power.
Disabling the EGR valve is easy. Locate the valve and the EGR vacuum modulator valve (two gold-colored metal stampings, usually at the rear of the engine). The EGR valve has steel lines leading to it from the exhaust manifold. The EGR vacuum modulator has two vacuum lines between it and the intake manifold and a third vacuum (soft) line between the modulator and the EGR valve itself.
EGR Vacuum Modulator
EGR valve (arrow) is shown adjacent tosimilar EGR vacuum modulator valve. EGR valve is connected to exhaust manifold with steel lines. Modulator has vacuum lines only.
Disconnect the vacuum line between the valve and modulator and place any solid object of appropriate size (dowel, etc.) in the line, then reconnect the line. Or you can get a EGR block off plate

Oct 14, 2013 | Cars & Trucks

1 Answer

Vacuum diagram fr a 97 chevy tahoe


are you talking about the egr vacuum solenoid, if so these solenoid have a filter on them and they rot when getting old and filter falls off and where filter was it looks like a vacuum hose would go there, you should have 1 vacuum hose to solenoid and 1 from solenoid to egr valve, you could possible have a bad egr solenoid, any codes set ?

Sep 03, 2012 | 1997 Chevrolet Tahoe

1 Answer

1992 cavalier. starts and drives fine, but will die after it's been driven if i try to put it in gear again. What's the problem? bought it site unseen, drove it home about 7 miles and it started sputtering...


Try pulling the vacuum line off of the EGR valve when the engine is warm and starts to sputter. If it runs good cold and then dies when warm and won't start again until the engine cools it is most likely a bad or sticking EGR valve. Try the procedure to confirm it is the EGR. You can check the internet for location and an image of the EGR valve for your specific car. Please rate me on this answer.

Aug 01, 2010 | 1992 Chevrolet Cavalier

1 Answer

How do i test egr system on 93 toyota camry


Testing steps:

  • Remove the vacuum hose on the top of the EGR valve and plug it.
  • Connect a short hose to the EGR valve.
  • Start the car.
  • Now **** on the hose, or use an appropriate tool to apply suction to the line
  • this will open the EGR valve the engine should stumble and try to die.
    If it does the EGR valve is working.
There is an "Exhaust gas manifold pressure sensor" that measures the exhaust gas flow to the EGR valve. The problem is the sensor itself becomes clogged with exhaust carbon and gives the computer a fixed false reading, the computer in turn sends too much vacuum to the EGR valve and the engine runs rough, surges and may die.

Apr 25, 2010 | 1999 Toyota Camry

1 Answer

Hi.I Have Subaru Legacy 1995 2.2 its chokes when I push the gaze pedal I need help pleas


Hello, If you know what an EGR valve is and where it is on your car you will need to try this. The EGR valve is on the back of the intake manifold on the drivers side as long as it's left hand drive. It looks like a side ways flying saucer with a small black rubber vacuum line going to it. Pull that little line off and put a small bolt or golf "T" in it to keep from having a vacuum leak. Then give the bottom the the valve (not the saucer part) a couple of hard taps with a hammer and then go drive it to see if it drives normal now. If it does you will need an EGR vacuum control solenoid and replacing the EGR valve itself is also recommended. I hope this info helps...(subyguru)...

Mar 27, 2010 | 1995 Subaru Legacy

2 Answers

Car will run for awhile and just shut off and the it will have to crank a few time before it will start again an the it will shut off again


they had problems with the crank shaft sensor causing vehicle to shut off and restart intermintently replace crank sensor. thank you and have a good day.

Feb 23, 2010 | 1999 Acura CL

1 Answer

Intermittently won't hold idle and stalls


The symptom you describe can be caused by either a bad or dirty EGR vavle or a broken / defective vacuum line.

Try this
1. disconnect and plug off the EGR vacuum supply line

2. Connect a vacuum hose of equal size to the EGR valve.

3. Start vehicle

4. draw a vacuum on the line orally.

a. the engine should die or run really bad.

5. Restart vehicle and repeat checking for same result.

6. If EGR valve is performing correctly as stated in steps 4 and 5 thern you most likely have a bad / cracked / damaged vacuum line somewhere.

7. Reconnect original vacuum line to the EGR Valve

8. Locate source of Vacuum leak.

Jan 27, 2010 | 1995 Jeep Grand Cherokee

3 Answers

How to clean EGR valve passages in 1993 Isuzu Trooper DOHC V6


You have to the EGR valve (sometimes the Intake manifold to EGR Vlalve line also). After you remove it take a drill bit the about 20 % smaller than the actual hole of the outlet side and rotate the drill bit with your hand to dig out the carbon. Aditionally the line coming from the intake manifold to the EGR valve will clog near the connection to the EGR valve. I use either a single piece of copper wire or the wire that you would use to tie ribar together to clean the line. When your done cleaning take a piece of vacuum line and connect it to the diaphram side and **** on it... then plug the line well with your thumb. Grasp the valve and blow thru it... Air should blow thru it freely. Remove your thumb from the vacuum line and try blowing again.. No air should pass thru the valve.
Then reinstall the valve and start the vehicle with the vacuum line disconnected (but blocked off) Use another piece of vacuum line connected to the diaphram again and **** on the line.. The vehicle should die or run really bad. If it does this then you cleaned it correctly.

Oct 25, 2009 | 1993 Isuzu Trooper

2 Answers

Engine malfunction


Check for

vacuum leaks on intake manifold,

the air tube between the air filter.

intake manifold vacuum hose.

===
clean throttle plate with Berryman carburator cleaner

SEE sample picture HERE
===

Also remove carbon built up behind the EGR valve and the EGR passage tube.

===

Vacuum leak WILL offset the intended 14.7 to 1 air fuel ratio.

More un-metered air (leaks) will lean out the fuel mixture.

Use small amount of Berryman carb clearer at potential air leak area will help you identify trouble spot.

At idle,just spray and listen for the RPM surge.

The in-rush of carb clearer will increase the RPM on the motor.

Record the problem spot(s) and address it later.

===

EGR carbon built up require 2+ hours to clean from start to finish.

You will need a new EGR base gasket before your start.

Locate and remove the EGR valve after the vehicle is cool down.

Carefully record the connector and vacuum line (for older vehicle) location by drawing an easily to follow diagram.

Remove the EGR valve.

Inspect the location of the carbon built-up inside the valve and the EGR passage tube.

SOAK these areas with WD-40 spary.

You will need a small screwdriver,cloth hanger and lot of newspaper and time to get this cleaning done right.

RE-SOAK the carbon and let it sit for over-night will also help.

One the last round,pass a shop vacuum of the EGR valve and the passage pipe.

Install the new EGR gasket and connectors.

Allow the vehicle to warm up outdoor to burn up any remaining WD-40.


Take it for a test drive.


Please rate my answer if it's useful to you.


Cheers,

Mustgo

Oct 24, 2009 | 2002 Mazda Tribute

1 Answer

1980 F100 with a straight 6 cyl. Won't idle.


The vacuum comes from the intake manifold and ported vacuum comes from the carb above the throttle plate. You might have a leak at the carb gasket or intake manifold gasket. Spray some car cleaner or WD40 around the gaskets and vacuum lines while the engine is running and when you hear the idle speed up, you've found the leak. You will need to install the rebuilt carb first, and you should tighten any loose intake manifold bolts. Don't overtighten them. Also check the EGR valve because it could cause the engine to stall at idle. A good tune up might be needed too. I've seen some of those engines run real rough when the ignition timing was off.

Sep 06, 2009 | 1981 Ford F 100

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