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I have a 07 dodge 3500 6.7 running rough acts like its missing i have done a dpf egr delete only time it does it is when the light that looks like lighting bolt comes on any suggestions?

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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

  • 1 Answer

SOURCE: 2003 Silverado rough idle, idles good after "check engine" light

Check your o2 sensor voltage, those trucks are real bad for o2 sensors, and yes if one sensor is reading 0mv, the others will start to drop out, and the vehicle will run very, rough. You also may check fuel system pressure, should be almost 60p.s.i. If its alot lower, Id be looking into a fuel pump. If that vehicle is drive-by-wire (no throttle cable), the throttle bodies get very dirty and cause that concern also. Id start by having the vehicle scantested.

Posted on Feb 07, 2009

  • 150 Answers

SOURCE: rough running, erratic spark

Run a compression test on the cylinders.If reading is low on any drop a little engine oil into the pot. If compression rises you have compession ring problems. Remove all plugs before you try this and place leads away from engine.

Posted on Mar 04, 2009

468 Chevelle
  • 81 Answers

SOURCE: Service engine code indicates EGR valve.

You could have a restriction in the egr ports. remove the valve. Plug the holes, start engine. 1 hole will be blowing out exhaust, the other will have large vacuum.

Posted on Mar 28, 2009

Mustgo
  • 2359 Answers

SOURCE: Can't fix the EGR excessive flow code

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

Posted on Dec 19, 2009

  • 1 Answer

SOURCE: 2007 dodge 3500, 5.9 cummins,engine light on,

my 2007 dodge 5.9 cummins all dash lights abs, parkbrake, check engine lights are on. airbag, and speedometer not working

Posted on Apr 16, 2010

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2003 ford expedition check engine light is on. It is reading a p405 code which is the egr sensor. I have change the sensor and the pig or electrical code twice . I brought the sensor from ford.


This DTC says nothing about changing the sensor or the connector or pig tail ! It's a circuit voltage low code
P0405 - DPF EGR Sensor Circuit Low Voltage Detected See DTC P1400 Problem with wiring or PCM !
P1400 - DPF EGR Sensor Circuit Low Voltage Detected The EGR monitor checks the DPF EGR sensor signal to the PCM for low voltage. The test fails when the average voltage to the PCM drops to a voltage less than the minimum calibrated value.
  • DPFEGR circuit short to GND
  • Damaged DPF EGR sensor
  • VREF short to GND
  • Damaged PCM
A DPF EGR PID reading less than 0.2 volt with the key ON and engine OFF or running, indicates a hard fault.

Sep 01, 2016 | 2003 Ford Expedition

1 Answer

Have had a 302 runs rough have done EGR cleaned and replace. New cap plugs wires replace vac hose to map EGR cleaned and checked tps iac fuel filter new have replaced ECM new. Every thing checks out have...


You don't give the year built, but back when ECM where first introduced it was known that the vehicle would run rough for await till the ECM had time to learn so of speak, by driving on the road. We had to drive down the road a few miles first to get running right on it's own.

May 20, 2014 | Cars & Trucks

2 Answers

I have a scan tool that says my egr valve system not ready on my Ford f150 5.4 and my catylist reads not ready how can I fix this problem


ABout EGR codes, there are alot choive to look or diagnostic... are you chec or replace the vacuum lines as well? If there is a leak, the DPFE will read incorrectly.

Did you reset the PCM or disconnect the battery after the repair? Assuming all fuses are good, the P1401 indicates a possible wiring fault. Check the connector. Is it clean? Is it pushed in all the way? Are the wires in good condition?

Since the DPFE has been replaced, likely there is a restriction in the EGR line some where. This could also be a bad EGR valve. But first ensure that the EGR valve vacuum line is attached and leak free.

If no problem found, then the EGR passageways in the throttle body should be cleaned. Carbon will build up and block the EGR flow.

If still no problem found, consider replacing the EGR valve.

Keep in mind this information from Ford Service CD...

P0401 - EGR Flow Insufficient Detected
The EGR system is monitored during steady state driving conditions while the EGR is commanded on. The test fails when the signal from the DPF EGR sensor indicates that EGR flow is less than the desired minimum.
Vacuum supply
EGR valve stuck closed
EGR valve leaks vacuum
EGR flow path restricted
EGRVR circuit shorted to PWR
VREF open to D.P.F. EGR sensor
D.P.F. EGR sensor downstream hose off or plugged
EGRVR circuit open to PCM
VPWR open to EGRVR solenoid
D.P.F. EGR sensor hoses both off
D.P.F. EGR sensor hoses reversed
Damaged EGR orifice tube
Damaged EGRVR solenoid
Damaged PCM

Perform KOER self-test and look for DTC P1408 as an indication of a hard fault. If P1408 is not present, look for contamination, restrictions, leaks, and intermittents

P1401 - DPF EGR Sensor Circuit High Voltage Detected
The EGR monitor checks the DPF EGR sensor signal to the PCM for high voltage. The test fails when the average voltage to the PCM goes to a voltage greater than the maximum calibrated value.
DPF EGR circuit open
VREF short to PWR
Damaged DPF EGR sensor
DPFEGR circuit short to PWR
SIG RTN circuit open
Damaged PCM

A DPF EGR PID reading greater than 4.5 volts with the key ON and engine OFF or running, indicates a hard fault.


Hope this helps (remember to rate and send us your comments about this answer).

May 22, 2011 | 2001 Ford F150 Styleside SuperCrew

1 Answer

Exhaust Gas Recirculation Flow Insufficient Detected 2002 Ford Crown Victoria LX The car works very good at 60 and I go 35 to city and then when we slow down to city speeds it will have little jerks and we...


P0401 - EGR Flow Insufficient Detected The EGR system is monitored during steady state driving conditions while the EGR is commanded on. The test fails when the signal from the DPF EGR sensor indicates that EGR flow is less than the desired minimum.
  • Vacuum supply
  • EGR valve stuck closed
  • EGR valve leaks vacuum
  • EGR flow path restricted
  • EGRVR circuit shorted to PWR
  • VREF open to D.P.F. EGR sensor
  • D.P.F. EGR sensor downstream hose off or plugged
  • EGRVR circuit open to PCM
  • VPWR open to EGRVR solenoid
  • D.P.F. EGR sensor hoses both off
  • D.P.F. EGR sensor hoses reversed
  • Damaged EGR orifice tube
  • Damaged EGRVR solenoid
  • Damaged PCM
Perform KOER self-test and look for DTC P1408 as an indication of a hard fault. If P1408 is not present, look for contamination, restrictions, leaks, and intermittents.
not likely the PCM, engine computer. they seldom go bad.
report back findings.

May 16, 2010 | 2002 Ford Crown Victoria

2 Answers

2007 dodge 3500, 5.9 cummins,engine light on, fault code p2146, running rough


It's a code that signify's you have a voltage circuit problem with one or more fuel injectors. When a problem is found with the fuel injector circuit it affects fuel delivery on all the injectors and that is why it is running rough.

Good Luck

Jan 29, 2010 | 2007 Dodge Ram 3500 Quad Cab Laramie

2 Answers

Starts good but bogs out in gear


Tuned-up lately, like new plugs & wires? Check EGR Valve, and also cycle key to retrieve any trouble codes that may be stored that will point you /us in right direction, and let us know what came up. Turn key to on, off,on,off,on, and leave in on position & count flashes of "check engine" light. goes like this: 2 flashes, pause, 2 more is code 22. 3 flashes,pause 4 more, is code 34........write them down & get back.

Jun 24, 2009 | 1995 Dodge Neon

2 Answers

1) Seat belt is stuck 2)Check engine light


Sometimes you need to reset the computer. Try disconnecting the battery.

Apr 30, 2009 | 1998 Ford Explorer

1 Answer

EGR EVP Sensor


Right on top of the EGR, (Exhaust Gas Recirculation), valve, which is on top of the intake.

Looks like this,
http://fordfuelinjection.com/index.php?p=35

Now, let's talk. The guy's and gal's at the auto parts stores, are just there to sell auto parts, not diagnose cars, pickup trucks, and so on. Nice that they try to help, but an ODB II scanner just shows generic information.

What I'm stating by that, is that you could buy that expensive part, and this may not cure your problem, and/or you could damage your computer if the procedure isn't done correctly.

The P1400 code states,
1.DPF EGR signal circuit shorted to ground
2.DPF EGR signal VREF circuit open
3.DPF EGR sensor is damaged or has failed
4.PCM has failed (Powertrain Control Module)
5.TSB 4-3-1 contains repair information for this trouble code

You need a scanner that is the NGR, (New Generation Star), or has the capability to read
Ford Enhanced Data.

This connects to the PCM in the harness. (It's located on top of the engine) If the procedure isn't done right, you can "Let the smoke out", of the PCM.
You also have to reset the computer to clear the error code.

I know shop time is expensive, but sometimes it leads to less expense in the long run.

Apr 28, 2009 | 2000 Ford Taurus

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