Question about 1993 Chevrolet S-10 Blazer

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Were is the egr valve at on the motor - 1993 Chevrolet S-10 Blazer

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Its prob on the front of the intake up under the intake duct it has 2 bolts round about 4'' in length next to a/c compressor

Posted on Dec 07, 2012

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E404 error code?


P0404 Dodge - Exhaust Gas Recirculation Position Sensor Performance Early Exhaust Gas Recirculation (EGR) systems component s include and EGR Valve, and Engine Control ?odule (EC?) Controlled Vacuum Switch Valve or EGR Solenoid and an EGR Vacuum ?odulator. Depending on the engine and driving conditions, the EC? will control the EGR Solenoid which will operate the EGR Vacuum ?odulator to regulate the opening and closing of the EGR Valve.
The EGR system on recently built vehicles uses a step motor to control the flow rate of EGR from exhaust manifold. This motor has four winding phases. It operates according to the output pulse signal of the EC?. Two windings are turned ON and OFF in sequence. Each time an ON pulse is issued, the valve opens or closes, changing the flow rate. When no change in the flow rate is needed, the EC? does not issue the pulse signal. ? certain voltage signal is issued so that the valve remains at that particular opening.

Jul 04, 2014 | 2006 Dodge Grand Caravan

2 Answers

Why is codes p2106 p0401 on?


P2106 THROTTLE ACTUATOR CONTROL SYSTEM,-PO401-EGR INSUFFICIENT FLOW

May 29, 2014 | 2005 Ford Explorer

2 Answers

What is a EGR valve & IAC valve & where are they located?


Here's a picture of your egr valve,located by firewall.Here's your iac.

Jan 17, 2013 | 2000 Chrysler Concorde

1 Answer

Location of egr valve on 2003 chevy silverado


Hi there:
Here is a picture showing the EGR valve on the 4.8 Litre V8. The numbers below go with the picture. The arrow points to the front of the truck.

(1) Fuel Injector 2 Connector
(2) Throttle Actuator Control (TAC) Motor Connector
(3) Throttle Actuator Control (TAC) Motor
(4) Exhaust Gas Recirculation (EGR) Valve Connector
(5) Exhaust Gas Recirculation (EGR) Valve
(6) Fuel Injector 6
(7) Ignition Coil 2


9_14_2012_3_34_36_am.jpg
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Sep 14, 2012 | 1989 Chevrolet Camaro

1 Answer

Erg flow insufficient


  • The DPFE (differential pressure feedback EGR) sensor is faulty and needs to be replaced
  • There is a blockage in the EGR (tube), most likely carbon buildup
  • The EGR valve is faulty
  • The EGR valve may not be opening due to a lack of vaccuum
It is quite common for people to just replace the EGR valve only to have the OBD code return. The EGR valve is not always the culprit.
  • Use a vacuum pump and pull the EGR valve open while monitoring engine RPM's & DPFE voltage. There should be a noticable difference in RPM's with the EGR open
  • Clean out the EGR valve and/or tubing to remove deposits
  • Check the voltage at the DPFE, compare to specified values (refer to a repair manual for your specific model)
  • Replace the DPFE sensor (with a good quality / OEM one)
  • Replace the EGR valve
The EGR valve is located in the engine compartment. Its should look this

2_7_2012_10_25_48_pm.jpg

Feb 07, 2012 | 2000 Mercury Sable

1 Answer

What does the check engine code p0406 mean on my dodge caravan with a 3.3L engine?


P0406 - Exhaust Gas Recirculation Sensor A Circuit High
An improper voltage signal is sent to ECM through the valve

Early Models : The EGR valve control the amount of exhaust gas routed to the intake manifold. Vacuum is applied to the EGR valve in response to the throttle opening. The vacuum control the movement of the taper valve connected to the vacuum diaphragm in the EGR valve.

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Late Models : The EGR volume control valve uses a step motor to control the flow rate of EGR from exhaust manifold. This motor has four winding phases. It operates according to the output pulse signal of the ECM. Two windings are turned ON and OFF in sequence. Each time an ON pulse is issued, the valve opens or closes, changing the flow rate. When no change in the flow rate is needed, the ECM does not issue the pulse signal. A certain voltage signal is issued so that the valve remains at that particular opening.

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Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine hesitation

Possible causes
- Harness or connectors (EGR volume control valve circuit is open or shorted.)
- EGR volume control solenoid valve
- EGR temperature sensor and circuit

Possible solution
- Repair EGR harness or connector
- Replaced EGR volume control solenoid valve
- Replaced EGR volume control valve


Hope helps (remember to rate and comment this answer).

Mar 31, 2011 | Dodge Caravan Cars & Trucks

2 Answers

Engin light #po406 2005 ram quad cab


P0406 - Exhaust Gas Recirculation Sensor A Circuit High

Early Models : The EGR valve control the amount of exhaust gas routed to the intake manifold. Vacuum is applied to the EGR valve in response to the throttle opening. The vacuum control the movement of the taper valve connected to the vacuum diaphragm in the EGR valve.

zjlimited_230.gif

Late Models : The EGR volume control valve uses a step motor to control the flow rate of EGR from exhaust manifold. This motor has four winding phases. It operates according to the output pulse signal of the ECM. Two windings are turned ON and OFF in sequence. Each time an ON pulse is issued, the valve opens or closes, changing the flow rate. When no change in the flow rate is needed, the ECM does not issue the pulse signal. A certain voltage signal is issued so that the valve remains at that particular opening.

zjlimited_231.gif

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine hesitation

Possible causes
- Harness or connectors (EGR volume control valve circuit is open or shorted.)
- EGR volume control solenoid valve
- EGR temperature sensor and circuit

Possible solution
- Repair EGR harness or connector
- Replaced EGR volume control solenoid valve
- Replaced EGR volume control valve
When is the code detected?
- An improper voltage signal is sent to ECM through the valve


Hope helps.

Mar 06, 2011 | 2005 Dodge Ram

1 Answer

How do I install an EGR valve for 2005 dodge durango?


To install the EGR Valve on a 2005 Durango first it is necessary to remove the air intake hoses and palce them to the side. Next, in order to get the EGR valve you will need to remove the windshield wiper motor, which is a pain but necessary to do get to the EGR valve. After removing all of the itemsthat are in the way you will be faced with a task that will try your patience, the EGR valve is located on the right side of the motor, (as if you were facing the motor from the front) just behind and to the rear of the throttle body. After you locate it you will need a rachet with a flexible head because it is fairly difficult to reach otherwise. A mirror and light will also help so you can see what you are doing since the EGR valve is located in such a hard place to see and get to that you will only be able to see part of it while you are removing the screws. After removing the EGR valve, simply reversethe procedure and your done. P.S. I own a 2005 Dodge Durango SLT with a 4.7L engine and I replaced mine this year after a check engine light came on and I checked the code on the OBD. By the way the EGR valve is a pain in the rear to change. Good luck!

Jun 29, 2010 | 2005 Dodge Durango

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