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98 GMC 5.7 P0404 CODE

REMOVED AND REPLACED EGR VALVE WITH AC DELCO. SAME CODE. TEST WIRING TO EGR VALVE OK. REMOVED AND CLEANED INTAKE. SAME CODE. REFLASHED PCM. SAME CODE. REPLACE PCM. SAME CODE. REPLACED EGR VALVE NEW AC DELCO. SAME CODE.

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: 1995 gmc Jimmy

timing is off try the timming senser

Posted on Oct 11, 2008

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SOURCE: fuel problems 97 jimmy

Yeah, The fuel pump can go bad . The normal warranty on the pump is 12 months or 12,000 miles. This is very rare . I would check if the fuel pump had a lifetime warranty.

I would also check the ignition switch, and all the fuses to make sure the fuel pump is the failure.

Good Luck

Posted on Mar 18, 2009

MNfisherman
  • 11896 Answers

SOURCE: my son's gmc 4.3l hesitates upon acceleration. I

do you have any check engine lights on? If you do, that is the first thing I would have checked. It does sound like plugged EGR, vacuum leak, or bad TPS

Posted on May 15, 2009

Molson02536
  • 3854 Answers

SOURCE: 95 GMC Sierra 4x4 350 5.7 rough idle problem

It sounds like a MAP sensor going bad. MAP is short for manifold absolute pressure sensor, it senses the manifold pressure and applies the right amount of gas with the right amount of ignition timing so the car runs and performs well if this does not work properly. It throws off the whole loop cycle for the computer, which in turn makes it run badly and get poor fuel economy. It can causes the engine to have a lack of power, combined with a loss of fuel economy. Poor take offs and sometimes an occasional stalling may occur if the MAP sensor is faulty and sending the wrong signals to the ECM.
Hope this helps and thank you for using Fixya.
Here is a link that my help you in the future. http://www.troublecodes.net/GM/

Posted on Mar 16, 2010

  • 1 Answer

SOURCE: I have a 1993 GMC Suburban 5.7L that bogs down and

Had the same problem with my 95, same engine as yours. It turned out the Knock Sensor was bad. It's located on the bottom of the engine block. I replaced just about every sensor I had on this truck and still did not solve the problem until I replaced this sensor. From what I understand, the knock sensor retards the timing when there's knocking of a misfire in the engine, then it's supposed to straighten itself back up when the engine cleans itself back up. When the sensor goes bad it won't realign itself and it throws the timing completely off kilter. Mine was backfiring so bad it blew the air cleaner cover right off. Since I replaced this sensor I towed a full 16' enclosed trailer for 3200 miles with no problems at all.

Posted on May 23, 2010

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1 Answer

Fault code po403/po404


the 403 is a circuit which can be a wiring , sensor or egr connection os faulty
http://www.obd-codes.com/p0403 http://www.obd-codes.com/p0404

Jul 19, 2016 | Cars & Trucks

1 Answer

Where is the EGR selonoid fuse on a 05 Dodge Magnum 5.7L?


There is no solenoid fuse , the PCM - engine computer supply's the control voltage . You have a wiring problem ! http://www.obd-codes.com/p0404 Engine Code P0404 EGR Position Sensor Performance

Feb 25, 2016 | 2005 Dodge Magnum RT

2 Answers

What is the code p0473 for a dodge sprinter van 2008


Error Code: P0404
Fault Location:
Exhaust Gas Recirculation (EGR) System - Range/Performance Problem
Causes:
-Hose leak/blockage.
-Wiring harness.
-Exhaust gas recirculation (EGR) valve/solenoid.
Error Code: P0473
Discription:
Exhaust Gas Pressure Sensor - High Input
Causes:
- Wiring short to positive.
- Exhaust gas pressure sensor (G450).
- Engine control module (ECM).
Error Code: P0674
Description:
Glow Plug Cylinder 4 Circuit - Circuit Malfunction
Causes:
-No Pre-Glow Period.
-Poor Cold Starting.
-Glow Plug Wiring faulty.
-Poor connection.
-Relay.
-Glow plug control module.
-Glow Plug faulty.
-Engine control module (ECM).
Solutions:
Check Glow Plug Wiring.
Check Glow Plug.
Error Code: P0675
Description:
Glow Plug Cylinder 5 Circuit - Circuit Malfunction
Causes:
-No Pre-Glow Period.
-Poor Cold Starting.
-Glow Plug Wiring faulty.
-Poor connection.
-Relay.
-Glow plug control module.
-Glow Plug faulty.
-Engine control module (ECM).
Solutions:
-Check Glow Plug Wiring.
-Check Glow Plug.

Sep 20, 2014 | 2008 Dodge Sprinter

1 Answer

How to fix p0404 and p0420


code p0404 refers to exhaust gas recirculation (EGR) valve position--range/performance problem ===causes --hose leakage/blockage--wiring ---EGR valve/solenoid
code p0420 refers to cat converter system bank 1-efficiency below threshold===causes --cat converter---wiring---HO2S 2

May 31, 2014 | 2007 Dodge Grand Caravan SXT Minivan

1 Answer

Check engine light chrysler 300


code p0404 refers to exhaust gas recirculation(EGR)-range/performance problem---Causes hose leak/blockage---wiring---EGR valve/solenoid I would go for the EGR valve /solenoid Replace the faulty units with genuine one because most aftermarket units are not set for OEM cpu units and are not completely compatible.

May 10, 2013 | Cars & Trucks

1 Answer

1998 Ford Escort - P1405 Error code


Follow the link for help with this fault code P1405 Ford DPF EGR Sensor Circuit High Voltage Detected

I suggest you replace the EGR valve position sensor.

Mar 10, 2017 | 1998 Ford Escort

3 Answers

CODE P0401 COMEING UP


I had an OBD II 401 code and fixed it by cleaning out the EGR vacuum line in the intake manifold. I removed teh EGR Valve and the set screw below it. i used a rifle cleaning brush and one length of the rod. Then I replaced teh set screw. I started teh engind and let the vacuum **** some carb cleaner through the front port hole. when it was sucking good I replaced teh EGR valve and reset the codes. That fixed it.8_26_2012_9_39_13_pm.jpg

Feb 12, 2010 | 1999 Isuzu Rodeo

1 Answer

2001 Saturn Sl1 1.9 Code P0404


Spray carb cleaner around #1 intake runner,known to blow gasket there,Replace leaner egr valve.

Jun 15, 2009 | 2001 Saturn S-Series

2 Answers

P0404 err code and it feels like engine serges 45 to 55 mph


Check your EGR valve hose for leaks/cracks etc, remove wiring connector & clean all contacts. Remove battery terminals before you start, but make sure you don't have to recode your anti-theft, or code your stereo, without proper info ready at hand. If your not sure, leave them on, but make sure key is off. Try again now, and see if code returns, if it does, get a new gasket for EGR valve, remove it & clean it thoroughly with throttle body spray cleaner, and re-install. It should be located close to throttle body, with 2 bolts attaching it to intake manifold. Near TP sensor & IAC motor. Try again, but see if you can get codes erased prior to, or immediately after, and see what happens.

Apr 25, 2009 | 2005 Dodge Caravan

2 Answers

2005 Dodge 1500 code p0404 EGR valve.


The electronic EGR valve and solenoid assembly is attached to the rear of the left cylinder head ,

  1. Remove electrical connector (5) at top of EGR valve solenoid.
  2. Remove tube mounting bolt (1) at intake manifold.
  1. Remove two bolts (4) connecting EGR tube (1) to valve assembly.
  2. Remove gasket located between EGR tube flange and EGR valve assembly.
  3. Remove two EGR valve mounting bolts (5).
  4. Separate valve assembly (3) from engine.
  5. Remove and discard metal gasket located between cylinder head and valve assembly.
INSTALLATION
  1. Clean area at rear of left cylinder head where it joins base of EGR valve.
  2. Clean EGR tube where it joins EGR valve.
  3. Position new gasket between EGR valve and cylinder head.
  4. Position EGR valve to cylinder head. Install and tighten two bolts (5). Refer to Torque Specifications.
  5. Position new gasket between EGR tube flange and EGR valve assembly.
  6. Position EGR tube (1) to side of EGR valve and into intake manifold.
    1. Install EGR tube flange bolt (1) at intake manifold. Tighten bolt. Refer to Torque Specifications.
    2. Connect electrical connector (5) to top of EGR valve solenoid (2).Do a final tightening of two EGR tube bolts (4). Refer to Torque Specifications

Feb 05, 2009 | 2005 Dodge Ram 1500

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