Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Reply
 
Thread Tools Search this Thread

  #31  
Old 07-17-2016, 07:39 PM
Howzit Howzit is offline
Tall Dude, Little Truck
 
Join Date: Jul 2016
Posts: 35
Default Re: Duratec pinging like crazy...

I hate to bump an old thread, but did you ever resolve this? Also, the 190 stat you put in, was it an electric stat, like the 208 is?
__________________
2003 Ranger XL 2.3L L4 5spd manual. Reg Cab, Short Bed. Rostra Cruise Control (Silver)

2005 Lexus LS430 Modern Luxury Package 4.3L V8 6spd Auto (Jenny)

2008 Toyota Corolla LE 4spd Auto (Leah)(wifes)
Reply With Quote
  #32  
Old 08-29-2016, 12:06 PM
GoldieRanger GoldieRanger is offline
Liking the Ford Ranger Forum
 
Join Date: Jul 2016
Posts: 24
Default Re: Duratec pinging like crazy...

Yes! please how was this resolved? I have a 2003 2.3 Duratec 5 speed and she's pinging too..
please help
Reply With Quote
  #33  
Old 08-29-2016, 12:22 PM
Tyler46 Tyler46 is offline
Ford Ranger Dismantler
 
Join Date: Nov 2014
Posts: 7,013
Default

Quote:
Originally Posted by GoldieRanger View Post
Yes! please how was this resolved? I have a 2003 2.3 Duratec 5 speed and she's pinging too.. please help
Check the knock sensor to make sure it's working. It's supposed to retard the timing under those conditions. Really cool little tool is an Ultragauge. It tells you the spark advance under certain RPM.

Motor running too warm

Inlet air too warm

Could be a number of things. Run a can of seafoam, could be carbon build up. Or pull one of your plugs and use a 7/8 socket to turn the crank pulley around so the piston is at the top and try and get your eyes in there
__________________
2007 Regular Cab - 2.3 DOHC - 5 Speed Auto - 4.10 Gears - Maxtrac 7" Lift - Fiberwerx 3" Fenders - Bilstein 5100 Series - 15x10 Ultra 164's - 35x12.50x15 Red Letters - Custom dents

Quote:
Originally Posted by guell View Post
People like him make me believe that birth control needs to be put in the public water supply
Reply With Quote
  #34  
Old 09-01-2016, 02:55 PM
rangergambler rangergambler is offline
Ford Ranger Driver
 
Join Date: Aug 2014
Posts: 909
Default

Where is the knock sensor on a duratec and how do you replace it?

----------

Whoever said their ranger is losing coolant that is a sign of possible headgasket/craked head issue. I had same symptons on my ranger it would lose coolant little by little and then one day steam was coming out of pipe.
__________________
2010 2.3 Stick Reg Cab XL - Maxtrac 2 inch coils - Bilstein 5100 front shocks - Bilstein yellow rear shocks
Reply With Quote
  #35  
Old 09-01-2016, 03:18 PM
Tyler46 Tyler46 is offline
Ford Ranger Dismantler
 
Join Date: Nov 2014
Posts: 7,013
Default

According to this potato pic it's under runner #3



image-3982929974.jpg
__________________
2007 Regular Cab - 2.3 DOHC - 5 Speed Auto - 4.10 Gears - Maxtrac 7" Lift - Fiberwerx 3" Fenders - Bilstein 5100 Series - 15x10 Ultra 164's - 35x12.50x15 Red Letters - Custom dents

Quote:
Originally Posted by guell View Post
People like him make me believe that birth control needs to be put in the public water supply
Reply With Quote
  #36  
Old 09-01-2016, 08:17 PM
GoldieRanger GoldieRanger is offline
Liking the Ford Ranger Forum
 
Join Date: Jul 2016
Posts: 24
Default Re: Duratec pinging like crazy...

Thanks Tyler that's really helpful!
Reply With Quote
  #37  
Old 09-01-2016, 11:28 PM
Tyler46 Tyler46 is offline
Ford Ranger Dismantler
 
Join Date: Nov 2014
Posts: 7,013
Default

Figured since I don't have fender liners and bigger fenders I would be more helpful and snap a few pics of mine from my truck. The part on the left and bottom of some pics is the thermostat and the top left is the power steering pump. The big black plastic cover on the side of the motor is the PCV valve.

The knock sensor is placed right between cylinder 2 & 3 so the PCM can detect knock from all 4 cylinders.







It's not hidden very well, you can even zoom in to see it here.



This is an Internet pic from a Focus 2.3, same motor.

__________________
2007 Regular Cab - 2.3 DOHC - 5 Speed Auto - 4.10 Gears - Maxtrac 7" Lift - Fiberwerx 3" Fenders - Bilstein 5100 Series - 15x10 Ultra 164's - 35x12.50x15 Red Letters - Custom dents

Quote:
Originally Posted by guell View Post
People like him make me believe that birth control needs to be put in the public water supply
Reply With Quote
  #38  
Old 09-09-2016, 08:10 AM
GSF1200S GSF1200S is offline
Wrist Twister
 
Join Date: Jun 2012
Posts: 995
Default Re: Duratec pinging like crazy...

I feel like such an a******. I make it a point to close up my threads, and certainly to answer questions when they are asked. Worse, some of the cats who posted with issues likely wont come back because I didnt engage soon enough, and we could have helped each other solve the problem.

Truth be told, I havent been driving my Ranger much, and I havent visited this forum in months. Instead Ive been doing that thing called getting distracted by life, and spending my free time and driving time with motorcycles

I have not fixed this issue. I changed the knock sensor, the cooling system is tip-top (havent lost a drop of coolant since I switched from a duracrap water pump to a motorcraft), my ultragauge indicates sane timing advance values, my plugs indicate a perfect burn, and my truck basically runs perfect (including no ping)... on 93 octane. I even logged my truck with Forscan and a bluetooth OBD2 reader and compared to another guys tuner logs who lives a few hours away and owns an 03 Ranger- our logs are basically the same. Given my truck averages 25mpg and I rarely use it during summer, Ive just lived with 93.

The one thing Ive been meaning to do that might well fix the problem is change the MAP sensor, but I just havent gotten around to it. I WILL update this thread if I find a solution, and I WILL check back now often to see if anyone else finds a solution, has questions for me, or whatever.

Sorry dudes...

Howzit: if youre still around, I used a fixed thermostat from a 2006 ranger 2.3l (bought motorcraft off rock auto) and a 1500ohm 1/2 watt resistor to trick the ECM into thinking the heater circuit is present (to avoid a CEL so I can pass inspection). The cooling system now works perfect- no loss of coolant, no overheating, heater is a furnace, no coolant smells, etc.

GoldieRanger: Nope, no fix yet

Im going to PM you two guys so that if youre still around, we can have a dialog about what weve tried, when the ping happens, etc. We should have that dialog here in thread so others can benefit

**EDIT** Thanks Tyler for keeping the candle burning
__________________
2002 Ford Ranger XLT Supercab, 2.3L Duratec I4, 5-speed manual, 4.10 gears, ~100,000 miles
Power nothing with air conditioning; crank windows for life!
Throttle cable mod, retained accessory power mod, 2006 thermostat w/resistor mod
Headlight relay harness, Philips xtreme-vision bulbs
P235/75R15 Michelin LTX M/S2s

Last edited by GSF1200S; 09-09-2016 at 08:12 AM.
Reply With Quote
  #39  
Old 09-09-2016, 10:36 PM
GoldieRanger GoldieRanger is offline
Liking the Ford Ranger Forum
 
Join Date: Jul 2016
Posts: 24
Default Re: Duratec pinging like crazy...

Thanks for the message, GSF1200S
No real success yet. I have been burning nothing but Chevron/Techron 91 octane but that hasn't fixed the ping.
Something happened yesterday, tho... my CEL came on when I took 'er out for a drive. Drove 'er normally, nothing different than everyday driving BUT I scanned the code today at work and it was an EGR code. 'Insufficient flow' it said.

I'm wondering if the EGR has something to do with the ping..............
This might be something for a different thread tho
Reply With Quote
  #40  
Old 09-10-2016, 12:24 AM
GSF1200S GSF1200S is offline
Wrist Twister
 
Join Date: Jun 2012
Posts: 995
Default Re: Duratec pinging like crazy...

Quote:
Originally Posted by GoldieRanger View Post
Thanks for the message, GSF1200S
No real success yet. I have been burning nothing but Chevron/Techron 91 octane but that hasn't fixed the ping.
Something happened yesterday, tho... my CEL came on when I took 'er out for a drive. Drove 'er normally, nothing different than everyday driving BUT I scanned the code today at work and it was an EGR code. 'Insufficient flow' it said.

I'm wondering if the EGR has something to do with the ping..............
This might be something for a different thread tho
Glad you're still with us after my delay

Actually, your code is entirely relevant. EGR (mis)function absolutely can cause ping. In fact it is the most likely cause of ping in many cases. This makes me want to replace the MAP sensor now as it is the primary sensor responsible for EGR function on the Duratec. I have not been able to determine if the Duratec even has a DPFE sensor- I will have to look closer and gain access to a manual. Youll notice other posters in this thread mentioned EGR as one of their first suspicions.

Unfortunately, the EGR valve itself is an absolute nightmare to get to on our trucks. It generally requires either removal of the transmission or for the motor mounts to be loosened and the entire driveline angled downwards in order to get enough space to remove it. This is due to the fact the EGR is mounted on the back of the engine, which itself is due to the fact the engine was designed for a front wheel drive car (and was shoehorned in by Ford, hence many weird designs like the crazy cooling hose wrapping around back the engine, etc).

In your case, you might try cleaning the MAP sensor right away or replacing it. Its the sensor on top of intake manifold near the back (firewall) of said manifold. The PCV valve hose dumps off right near where the MAP is mounted, and so despite the duratec not having much blowby, it nonetheless slowly gums up the MAP sensor. Mine has some permagunk I cannot clean off, which is why I have been wanting to replace it. Its barometric values via OBD2 report close to my altitude, but its impossible to tell if close is good enough, nor is it possible to see the MAP accurately reports to the ECU changes in manifold pressure necessary to make proper EGR changes.

I have closely watched EGR function using Forscan and have verified EGR function into various modes, but cannot without more advanced software or a manual conclude if it all happens at the right time.

I have been putting off changing my clutch slave as it works fine but is nonetheless due on mileage- I plan to completely pull the EGR system when I have the transmission out (on top of changing the cooling hose with the plastic tee), and I will report on what I find. Given the difficulty of accessing the system, I will likely replace the EGR valve with a motorcraft variant while its tore down just to be safe.

Finally, in your case I could suggest a backpressure test if you have a gauge or a local shop with one. I did a backpressure test on mine though and I had no discernable issue there.

I will keep this thread up-to-date with anything I find.
__________________
2002 Ford Ranger XLT Supercab, 2.3L Duratec I4, 5-speed manual, 4.10 gears, ~100,000 miles
Power nothing with air conditioning; crank windows for life!
Throttle cable mod, retained accessory power mod, 2006 thermostat w/resistor mod
Headlight relay harness, Philips xtreme-vision bulbs
P235/75R15 Michelin LTX M/S2s
Reply With Quote
  #41  
Old 09-10-2016, 05:58 AM
tomw0 tomw0 is offline
Ford Ranger Driver
 
Join Date: Aug 2015
Posts: 890
Default Re: Duratec pinging like crazy...

I have not gone and re-read the other posts, but will mention that the EGR system will/can definitely have an effect on pinging. Lack of EGR allows the 'peak' combustion temperature to be higher, which may lead to higher head temperature, piston temperature and cylinder wall temperature.
One check you can run readily is to pull the vacuum line from the EGR valve diaphagm. If you feel vacuum at engine idle speed, something is wrong. If the engine idle improves, something is wrong. If you open the EGR valve, using a vacuum source or a tool against the other side of the diaphragm, the engine idle should go to pot. If the valve is working and there is exhaust gas available to be flowed. There should be no EGR flow at idle.
tom
Reply With Quote
  #42  
Old 09-10-2016, 07:33 AM
GSF1200S GSF1200S is offline
Wrist Twister
 
Join Date: Jun 2012
Posts: 995
Default Re: Duratec pinging like crazy...

Quote:
Originally Posted by tomw0 View Post
I have not gone and re-read the other posts, but will mention that the EGR system will/can definitely have an effect on pinging. Lack of EGR allows the 'peak' combustion temperature to be higher, which may lead to higher head temperature, piston temperature and cylinder wall temperature.
One check you can run readily is to pull the vacuum line from the EGR valve diaphagm. If you feel vacuum at engine idle speed, something is wrong. If the engine idle improves, something is wrong. If you open the EGR valve, using a vacuum source or a tool against the other side of the diaphragm, the engine idle should go to pot. If the valve is working and there is exhaust gas available to be flowed. There should be no EGR flow at idle.
tom
Ill have to dig in again to be certain of all the specifics, but the EGR valve on the duratec is an electric stepper motor design- I believe the MAP fills the roll of allowing the ECU to determine what position the EGR motor should be in based on vacuum conditions in the manifold. From what I understand this design is much more robust and reliable than the older style EGR valves. Perhaps you can correct any misinformation I might have with the above?

Ive noticed that if I unplug the MAF sensor, the truck runs almost identical to how it normally does. If I unplug the MAP sensor, it immediately starts to run like crap (prolly due to EGR and expected EGR gasses not being there hence effecting combustion).

I dont want to speculate further, because honestly EGR is probably where Im weakest knowledge-wise under the hood. I need to examine some manuals- I usually prefer to attack these problems by reading theory on how a system works first before I start trying to test/replace things.

GoldieRanger, your duratec is the first duratec I've heard of thats popped an EGR code. I think EGR is likely the culprit and either the MAP, carbon buildup in the EGR passage, or other EGR problem is likely the cause of our problems. Probably the only reason mine is gone with Premium is that my problem isnt as severe as yours yet (hence why I have no EGR code), and that premium is 93 where I am as opposed to your 91.
__________________
2002 Ford Ranger XLT Supercab, 2.3L Duratec I4, 5-speed manual, 4.10 gears, ~100,000 miles
Power nothing with air conditioning; crank windows for life!
Throttle cable mod, retained accessory power mod, 2006 thermostat w/resistor mod
Headlight relay harness, Philips xtreme-vision bulbs
P235/75R15 Michelin LTX M/S2s
Reply With Quote
  #43  
Old 09-10-2016, 06:40 PM
GoldieRanger GoldieRanger is offline
Liking the Ford Ranger Forum
 
Join Date: Jul 2016
Posts: 24
Default Re: Duratec pinging like crazy...

A brief update. So today I was fortunate enough that my boss let me work on my truck pretty much the whole day in the shop. Took everything apart that needed to come apart and uncovered the elusive Duratec EGR valve. Long story short, after fighting with the EGR for the better part of 2 hours, ONLY THEN was I able to find a thread out of desperation that explained you either have to drop the trans or tilt the engine and trans forward to replace it
anyway, needless to say I ran out of time if I was going to put the truck back together and drive 'er home.
THIS IS NOT OVER! Thursday is my day off and Round 2 is imminent, as well as the demise of this lazy, potentially carboned up, spent, USELESS, ENGINE INJURING, son-of-a-gun EGR!!

...I digress...
Its encouraging to read the recent posts because it re-affirms what I have researched in the last couple days about how the EGR works on these engines and why it needs to be there in addition to the effect it has on pinging.
Interesting, too, about the MAP sensor, GSF1200S. I didn't know the MAP held that much authority, if you will, on the engine functions but it makes sense seeing as the EGR is electronic on the Duratec.
And thanks, Tom for that info. I, like many others, lack much understanding when it comes to engine emission controllers and what not, so any info is much appreciated.

Suffrin', fellas... I really hope this new valve and MAP cleaning fixes the ping. I really like this little engine. I know there must be a logical reason as to why she's pinging. This is not normal engine function.

Will baby it for the next few days until I have time, taking backroads, keeping my foot out of it, etc. She'll be ok... now if only I will be heheheh
Reply With Quote
  #44  
Old 09-11-2016, 09:34 AM
tomw0 tomw0 is offline
Ford Ranger Driver
 
Join Date: Aug 2015
Posts: 890
Default Re: Duratec pinging like crazy...

Guess I should note which engine is the victim before posting. I plead ignorance about the later EGR system, but the function is the same. The MAP reads manifold absolute pressure, or 'vacuum' in the intake. High vacuum means the throttle is closed, or not wide open anyway, low vacuum happens at wide open throttle, where engine is loaded.
Older MAPs were used to inform the computer, which would then diddle with the fuel spritz time to improve fuel economy when under light loads. As noted, the new application is to do the same thing, but use the 'load' to adjust the EGR flow. Back then, the MAF was not available, so 'table driven' parameters were used to regulate emissions based on estimated air coming in, load, temp, etc. With the MAF, a 'known' amount of air is being ingested, and the fuel amount for proper burn should be 'known' also.
tom
Reply With Quote
  #45  
Old 09-11-2016, 09:42 AM
Tyler46 Tyler46 is offline
Ford Ranger Dismantler
 
Join Date: Nov 2014
Posts: 7,013
Default

Exactly, you can see my pics I posted of my UG at idle and at 2500, at idle my intake pressure was at like 14.5 - atmospheric pressure. And at 2500 my intake psi was 3.48
__________________
2007 Regular Cab - 2.3 DOHC - 5 Speed Auto - 4.10 Gears - Maxtrac 7" Lift - Fiberwerx 3" Fenders - Bilstein 5100 Series - 15x10 Ultra 164's - 35x12.50x15 Red Letters - Custom dents

Quote:
Originally Posted by guell View Post
People like him make me believe that birth control needs to be put in the public water supply
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Is what I hear pinging danray35e 3.0 Vulcan Tech 15 03-28-2015 06:58 PM
2.5L pinging Gary H 4-Cylinder Tech 21 04-24-2013 06:18 AM
Sometimes I'm girl crazy.. right now I'm grille crazy. uh0h50 General Ford Ranger Discussion 22 01-27-2013 11:40 PM
Pinging under a load scorp2002 General Ford Ranger Discussion 0 07-14-2011 05:08 PM
Pinging DieselBrad 4.0 SOHC / 4.0 OHV Tech 9 09-06-2010 05:19 PM