EVR Solenoid - Tested Bad?
 

Hello everyone, I'm new to this forum and have done a lot of research in the past and should first say thanks.

Now to my question. I've recently had some pinging issues arise in my 02' F150, 4.2 85k miles. Pinging only occurs when at operating temp, and moderate acceleration.
What I've done: Cleaned MAF, Changed DFPE, manually tested EGR, 2 seafoam treatments. No difference.

I just did a 'dynamic' vacuum test on the EVR Solenoid. I hooked up the vacuum inbetween the EVR Solenoid & the EGR. At no point during acceleration/driving did I get greater then 4mg hg of vacuum. I tested the vacuum line to the intake as well and got 15mghg at idle, and around 8 at the point where pinging starts.

Could someone tell me the amount of vacuum the egr should get during moderate throttle/2000 rpms at normal operating temp? Can an EVR Solenoid not work 100%? Is there any way to tell if it's getting bad info from the PCM and nothing to do with EVR?

Sorry for the long post and thanks for reading.

RE: EVR Solenoid - Tested Bad?
 

No help?

RE: EVR Solenoid - Tested Bad?
 

No CEL? or stored no/low flow codes for EGR?

Noidle concern, performance loss/driveabilty problems other than the ping?

RE: EVR Solenoid - Tested Bad?
 

Thank you for replying.

I had a CE light come on probably for two days total. IIRC the code was P0402. Nothing ever again (the CE light does work)

No performance symptoms whatsoever. The ping is greatly reduced with octane booster, and amongst other things is why I believe the egr system is at fault.

If I find the egr is supposed to get greater vacuum then 4mghg during any point of driving, I can attribute it to the evr solenoid, or the PCM. Unless I'm way off...

Is there a way to bench test an MAF sensor?

RE: EVR Solenoid - Tested Bad?
 

Have a scana tool put on it that can read the PID's. Look at the hertz reading and post back with that reading and your approximate altitude. As a reference, we are at approx. 1000 feet and out hertz reading is approximately 157. I will see if I can find the chart and post it here.

RE: EVR Solenoid - Tested Bad?
 

unfortunately Idon't have the equipment for that. I guess I'll be stopping by my local shop.

RE: EVR Solenoid - Tested Bad?
 

The P0402 is for excessive EGR flow at idle. The EGR vent or the DPFE may be the cause of that.

RE: EVR Solenoid - Tested Bad?
 

Known issue with the 4.2. Couple of thoughts to try.

Thought #1

TSB 07-16-17
TITLE
Spark knock under light loads and acceleration - 3.8L, 3.9L, and 4.2L - Split port intake manifold Runner Control ( IMRC ).

This TSB covers
FORD
2001-2004 Mustang
1996-2003 Windstar
1997-2003 E-150 and F -150
2004-2007 Freestar

MERCURY
2004-2007 Monterey

ISSUE
Various vehicles equipped with a 3.8L, 3.9L, or 4.2L engine and a Split Port IMRC may exhibit spark knock under light load and acceleration.

This bulletin has you look at the IMRC actuator Rods to see if they are connected properly and if not replace them and add new retainers clips.

Thought #2

You could also have eccessive build-up inside your intake from the oil vapors that are sucked into the intake via the PCV valve causing the problem.

RE: EVR Solenoid - Tested Bad?
 

Interesting. I will look into that TSB as soon as possible. Thank you for that information.

RE: EVR Solenoid - Tested Bad?
 

If you have a P0402, I would think that you have a faulty DPFE sensor. If, in fact, you did have excessive EGR flow at idle, your engine would stall. If the sensor was reading too high at idle, then the computor would not apply much vacuum at road speed, to keep the flow down. Now if you really didn't have high flow at idle, but the computor thought you did, it would restrict flow and that would give you a slight ping.

RE: EVR Solenoid - Tested Bad?
 

I only think I had P0402... I honestly just do not remember. It went away after a few days and thought it was just some bad fuel or something and didn't think twice.

I put in a brand new DPFE and the ping was still there.

I'm trying to find the TSB 07-16-17 literature... but it looks like that isn't given out freely? Would anyone have a copy of the full TSB?

RE: EVR Solenoid - Tested Bad?
 

http://www.fordtechservice.dealercon...1527/adobe.gifPrintable View (67 KB)


TSB
07-16-17[/align]


[*]SPARK KNOCK UNDER LIGHT LOAD AND ACCELERATION - 3.8L, 3.9L, AND 4.2L - SPLIT PORT INTAKE MANIFOLD RUNNER CONTROL (IMRC) [/ul][/align]

Publication Date: August 7, 2007





FORD:[/align]
2001-2004 Mustang
1996-2003 Windstar
1997-2003 E-150
1997-2008 F-150
2004-2007 Freestar


MERCURY:[/align]
2004-2007 Monterey

ISSUE:[/u]
Various vehicles equipped with a 3.8L, 3.9L or 4.2L engine and Split Port IMRC may exhibit spark knock under light load and acceleration.
ACTION:[/u]
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE[/b][/u]

Inspect for disconnected IMRC actuator rods.
[ol][*]Check both right hand and left hand side IMRC rods are properly attached to the actuator motor and intake manifold runner.[*]If the IMRC actuator rods are found to be connected properly, do not continue with this TSB. Refer to Powertrain Control/Emission Diagnosis Manual.[*]If any IMRC actuator rods are disconnected, refer to Workshop Manual (WSM), Section 303-14 for IMRC service.[*]If any IMRC actuator rod linkages are found disconnected, replace all four (4) linkage rod retainers. (Figure1)

http://www.fordtechservice.dealercon...27/tb8910b.gif
Figure 1 - Article 07-16-17

[/ol]




PART NUMBER
PART NAME

F5RZ-9F955-AB
Retainer - Actuator Side (2 Required - White Color)

6F2Z-9F955-A
Retainer - Runner Side (2 Required - Red Color)

WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.



OPERATION
DESCRIPTION
TIME

MT071617
Use SLTS Operations If Available; Claim Additional Diagnosis Or Labor Performed As Actual Time
Actual Time
DEALER CODING



BASIC PART NO.
CONDITION CODE

9F955
33
[hr]

NOTE: [/b]The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by "do-it-yourselfers". Do not assume that a condition described affects your car or truck. Contact a Ford, Lincoln, or Mercury dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article. The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right to supercede this information with updates. The most recent information is available through Ford Motor Company's on-line technical resources.
Copyright © 2007 Ford Motor Company