Ford Five Hundred The new mid-sized luxury sedan, offering a powerful engine and all wheel drive.

Timing Chain Problems?? 2005 Five Hundred

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Old Apr 17, 2026 | 12:02 PM
  #21  
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Originally Posted by saemetric
But it does crank over very slowly when I’m doing this first startup. Battery is new and cable connections are tight. After this initial startup problem, battery and engine crank over just fine.
Check my Post # 2 above and just buy the battery monitor, a must have for anyone who owns a car.

You want to narrow the issues down and make sure your alternator is charging your new or old battery. Even if it's new if it's not charging properly the new can be defective, don't assume it's new and it must be in good condition.
Before you buy the battery monitor, use a jump starter like Noco GB50 or higher everytime you start the car and narrow things down.

Check Post # 2 again I mentioned OBDLink MX+, just buy it, and keep it if you like it. With it, no more guessing, you can tell what's going on with all the live parameters, if you really want to troubleshoot the issues yourself it's a good investment despite a steep price.
 
Old Apr 17, 2026 | 07:45 PM
  #22  
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Did get a code today. PO106 during the warmup phase of the saga…It’s a MAP sensor problem. Where is it on the 3.0 V-6 five hundred engine.Or do I even have an MAP sensor. If,so, could this affect the problem I’ve been having.?
 

Last edited by saemetric; Apr 17, 2026 at 09:11 PM.
Old Apr 17, 2026 | 11:57 PM
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So check and see if you have EGR System Module (ESM) or not, you probably do.




Number 10 on the diagram above. Zoom out views below near throttle body and the firewall, could be difficult to get to.



Your MAP is integrated into the ESM and it might be possible to disassemble the ESM apart and clean the individual components at your own risk. ESM with so many different components integrated into it, is probably very costly to replace, perhaps $500 to $1000 and since it's a module you more than likely need to program it. Laptop w/ Windows + Forscan + Vlinker FS required if you want to DIY it. Vlinker FS has 18V FEPS support required if your vehicle is 2007+ but since yours is 2005 you don't have to buy Vlinker FS but then it's inexpensive so just buy this adapter if you want to program ESM or any other modules in the future if you own a 2007+ car.
Of course download and follow the Pinpoint-DM.pdf first.
Don't forget to buy the battery monitor and OBDLink MX+ first I guarantee you won't regret. The P0106 not sure what scanner you using, you need MX+ to retrieve all the Ford's specific DTCs, all the non-P0xxx, and non-P. The pinpoint-DM test mentions that you need to troubleshoot all the other DTCs before you get to P0106, if you don't have a scanner capable to retrieve all possible DTCs you can have no check engine light, one P0106 and 50+ non-P0xxx and non-P DTCs you are not even aware of when they don't trigger a check engine light.
 
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Last edited by heiko; Apr 18, 2026 at 12:12 AM.
Old Apr 29, 2026 | 05:51 PM
  #24  
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Update on this posting.. As stated in my other “Grounding Issue” post, the cleaning of a battery + connection solved the slow startup issue. However the problem is still there with the “puffing” sounds rin the intake plenum area and rough idle like a miss. After a minute or two, it smoothes out and all is well.
It has a new ESM (EGR) valve which didn’t help with the puffing but did get rid of the MAP sensor DTC code..
After this initial cold start problem the car runs fine Very frustrating. No new codes when warm. Can I try the scanner in the morning when it’s cold in KOEO mode or should it be at normal operating temperature.

 
Old Apr 29, 2026 | 08:08 PM
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Since you do not take my recommendation for buying OBDLink MX+, you are going to diagnose this the difficult ways.
Remove and clean, I thought I mentioned this before already. Also don't forget to bleed the cooling system, and reset PCM adaptation (clear the KAM).

If cleaning the throttle body doesn't help, locate the IACV and clean that as well.

That's all you can do without buying all the recommended stuffs I mentioned previously.
 
Old Apr 29, 2026 | 09:18 PM
  #26  
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When I replace the plugs and coils, I did remove and clean the throttle body thoroughly. And how do I reset the PCM. And not familiar with what KAM means. What is the IACV (guessing idle air control valve?). Don’t seem to see one anywhere.

Tell me what OBLINK MK+ is , and what and where to use it. I’m not too computer literate so bear with me in my ignorance.
 

Last edited by saemetric; Apr 30, 2026 at 11:17 AM.
Old Apr 30, 2026 | 01:07 PM
  #27  
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KAM is keep alive memory. When people say resetting PCM or KAM on Ford vehicles they are referring to the same thing. The most reliable way to reset it is to use a capable scan tool that supports Ford. The cheapest and most affordable one is Foxwell NT510 Elite w/ Ford + Lincoln + Mercury software, get it from AliExpress it's under $100 and it's not subscription based, simply a one time purchase, lifetime updates. The Harbor Freight ones (perhaps even icon brand) are useless, you can only retrieve the very generic DTCs, no live data support, and of course no bi-directional support. You might have missed out some other critical DTCs when using a Harbor Freight one.
What's so good about Foxwell is the bi-directional support some $500 scanners can't do. Active test (bi-directional support), for instance, you can tell Foxwell to step on the gas pedal, the brake pedal, turn on the reverse light and all that without your actions. When using Foxwell your car must be stationary and KOEO unless you are told to start the engine. When viewing live data of course you can drive while watching Foxwell but it's unsafe to drive, that's time when you need OBDLink MX+ and watch the live parameters on your phone while driving.

OBDLink MX+, unlike generic adapters, has Ford's specific DTC support, not just Ford but so many other car make. Check the list here -> https://www.fordforum.com/forum/ford...h-light-50915/
All included for free and not subscription based. Say you own a Ford, a Toyota and a Nissan, you can retrieve all OEM specific DTCs.
Examples on transmission only, there are hundreds more (if not thousands) to choose from:



If you compare the two above you can see "Transmission Control Indicator Light" first one is OFF the second one is ON, I done that on purpose so you can see, I simply pushed on the OD button on the stall on my 98 E-150.
You can also monitor the A/F trims, the electronic throttle body, what is your demand APP (accelerator pedal position), what your PCM receives, and what is the actual feedback the ETB (electronic throttle body) is getting from the PCM.
With OBDLink MX+ you minimize your time getting to the component and removing the connector and of course assuming you have all the equipment, and if you don't, it saves you a lot of times getting the data on what your PCM is getting.

You said you cleaned your throttle body you need to reset it. Why? Let say your throttle plate is a little sticky (when cold) and it smooths out (when warm), your PCM is aware of that and smart enough to make the adjustment. After cleaning you want your PCM to NOT make the adjustment anymore, that's why you need to reset it so it relearns from scratch.

You have electronic throttle control, so no IACV.

After a KAM reset the LTFT will have a fresh start at ZERO. If you need to clear the KAM asap by disconnecting the battery without buying MX+, you still should borrow a scanner from someone else, you just need to be able to view generic live data, observe the current reading on LTFT on both banks. Do the KAM reset, then check the LTFT on that scanner again, if you see the LTFT clears to zero, then you know your KAM reset is done successfully.
MX+ you can't reset PCM or run any active test, Foxwell you do.
 

Last edited by heiko; Apr 30, 2026 at 03:33 PM.
Old Apr 30, 2026 | 05:55 PM
  #28  
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Default Foxwell NT510 Elite for Ford

Looking at AliExpress website it’s confusing as to which one you’re referring to.
Do you have a link to the specific scanner that is for Fords and under $100. Thanks 🙏

 
Old May 1, 2026 | 07:19 AM
  #29  
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A little word to the wise,

Scanners that can do a lot of tests do not come cheap. Some require a yearly subscription to stay current. Smart move to weigh what those costs could be versus having a good shop check your vehicle. Keep in mind places like Autozone will check your vehicle for codes for no charge.

Code readers can do only that, read codes and may not be what you might be looking for, while an expensive tool purchase could sit in the cabinet for years before another use is needed.
The tool is only as good as the person using it. If you don't have the knowledge of how the system is supposed to function, the tool may provide the needed info, but if you don't know what you are looking at,well you get my point.
 

Last edited by hanky; May 1, 2026 at 07:22 AM.
Old May 1, 2026 | 12:08 PM
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$139 at AliExpress now, half year ago if you select to ship from China it was around $90.
$142 on eBay now so it's better to just buy on eBay and here's the direct link: https://www.ebay.com/itm/116997486472

If you search "nt510 elite Ford" on eBay you can see there are 2 versions, one says 2026, the lone difference is the wifi update, which is useless, you update 3 or 4 times a year if your car is 2020 or newer. If you do decide to buy the 2026 one, the software is not preinstalled, you can leave a note to seller during checkout box saying "please preinstall "Ford + Lincoln + Mercury for me".

NT510 Elite, functionality wise is worth a $500 scanner. It can do PATS and key programming. Only when your car is 2007 onward then it can't because 18V FEPS is required. On your 2005 you can still do some programming and coding, of course not as many as Forscan. You also can use it to view live data on any non-Ford, just can't do bi-directional tests. Additionally NT510 Elite is a one-time purchase lifetime update, not subscription based like Forscan or many other scanners. So buy on eBay and keep it if you like it. Don't forget to also buy OBDLink MX+ since it serves different things, reading and clearing all DTCs, and viewing live data, and not just for Ford but many other car make. The scanner that Autozone use is just a generic one not any better than your harbor freight one.
 

Last edited by heiko; May 1, 2026 at 12:18 PM.



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