Update Shudder/Hesitation issue

[krewat]

Your statement about your 13 and 16 SHOs doing weird things makes me wonder if I'm being too picky ...

LOL

I noticed when I first got my 2013, that if I get in the car, start it, and try to drive away, it surged pretty bad - to the point where it would get the traction control going. So I got used to remote starting it from as far away as I could, walking to it, and then driving away. No surge. So I got used to it.

2016? SAME THING.

(Shoulder shrug emoticon goes here)

Both SHO's are leases. The 2013, I did the bare minimum service to it, and only complained about the (somewhat?) well-known catastrophic loss of power when I pulled out in traffic. They updated the calibration, and it never did it after that. Besides the axle-shaft recall, where my axle was actually coming out of the transaxle, the fuel delivery module recall, and the rear license plate bulb socket recall, all done at once, those two times were the only times I had it in for service. Overall the car just performed great, the little light-throttle weirdnesses I just dealt with - by making sure I didn't use light-throttle

This 2016, I'm about 75/25 on buying it after the lease is up. So I'm going to monitor and warranty every little thing I can before the lease is up in 3 years.

I'm already devising a way to eliminate that freakin' annoying double-honk when you leave the engine running and get out and close the door (or trunk). Without making any major changes, like uploading a new software package using IDS that this guy came up with: www.fordPImods.com And easily removed if I do return it at the end of the lease.

Although, that AWD monitoring display shown on that web site would be pretty cool to have.

Back to your issue though, really, try 93 octane just to have a complete base-line. Little things, even a dirty air cleaner can do all sorts of weird things.

ALSO - CLEAN THE MAF sensor! I did this once on my 2013 when I was changing the oil at around 20K miles, and holy cow, that thing was DIRTY. Made a difference in low-throttle driveability

 

[rcryniak]

They did an upper intake cleaning as a courtesy

Aren't intake cleanings on this platform a bad idea, or has someone figured out how to safely do it without jacking up the turbos?

 

[John Miller]

I have tried all octanes and a bunch of gasoline brands - including Shell, Exxon, and Sunoco. No difference.

You mention light throttle issues or drivability a couple times - it is unclear whether you are referencing similar symptoms as I?

The air filter is original, and I have not cleaned the MAF. Maybe I'll give that a go but, again, only got 20k-ish miles ...


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[krewat]

Well, I don't know what mine does at exactly the conditions you describe. I'll try to do that this weekend if I remember.

I've seen MAFs in my other vehicles get pretty cruddy in 20K miles. I live on Long Island, where we have heavy traffic, lots of diesel trucks, and the air cleaner at 20K miles is starting to get a black coating on it - either from asphalt dust, or diesel soot. The MAF usually starts to look a little discolored too, and every time I clean it, it helps. Your mileage may vary

 

[John Miller]

Aren't intake cleanings on this platform a bad idea, or has someone figured out how to safely do it without jacking up the turbos?

I wondered the same thing, and then figured the Internet lore about the prohibition had to do more with Seafoam and such, but that dealers had an acceptable method.

 

[John Miller]

Well, I don't know what mine does at exactly the conditions you describe. I'll try to do that this weekend if I remember.

I've seen MAFs in my other vehicles get pretty cruddy in 20K miles. I live on Long Island, where we have heavy traffic, lots of diesel trucks, and the air cleaner at 20K miles is starting to get a black coating on it - either from asphalt dust, or diesel soot. The MAF usually starts to look a little discolored too, and every time I clean it, it helps. Your mileage may vary

Well, I'm probably getting close to needing a new air filter anyway, so will do that and clean the MAF. I'm pretty sure it is not the issue, but what the heck.

In the meantime, I need to get confirmation about whether an X4 will get the data needed per the suggestions here ...

 

[SHOdded]

Ecoboosts use MAP, not MAF, BUT they use the same MAF cleaners Spray liberally in a well-ventilated environment. Those fumes will get to you.

 

[John Miller]

Is this the same MAP on top the engine that will get replaced with a 3 bar MAP if I go tune?


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[krewat]

Ecoboosts use MAP, not MAF, BUT they use the same MAF cleaners Spray liberally in a well-ventilated environment. Those fumes will get to you.

Looks like a MAF, smells like a MAF - sits in the same place as a MAF - pa-TAY-toe, pa-TAH-toe. But yeah, I get the drift. EXCOOOSE ME for never having a forced-induction car before and getting used to saying MAF.

All in good fun

 

[rcryniak]

I wondered the same thing, and then figured the Internet lore about the prohibition had to do more with Seafoam and such, but that dealers had an acceptable method.

According to that FordTechMakuloko guy, he's actually discussed the issue with Ford's engineering team, and Ford's own engineers came to the conclusion after testing that any intake service of any type, be it DIY or dealer, can bomb the turbos... watch the videos man, not to scare you, but watch them... and then cross your fingers. Although Ford may be working on a cleaning method, AFAIK that hasn't happened yet.

 

[SHOdded]

That's the one you upgrade to a 3 bar, correct. The other MAP sensor is on the pipe pre-throttle body, and it is actually 3 bar.

 

[SHOdded]

Looks like a MAF, smells like a MAF - sits in the same place as a MAF - pa-TAY-toe, pa-TAH-toe. But yeah, I get the drift. EXCOOOSE ME for never having a forced-induction car before and getting used to saying MAF.

All in good fun

Interesting factoids right there!

 

[rcryniak]

Looks like a MAF, smells like a MAF - sits in the same place as a MAF - pa-TAY-toe, pa-TAH-toe. But yeah, I get the drift. EXCOOOSE ME for never having a forced-induction car before and getting used to saying MAF.

All in good fun

The MAP is on top of the engine, the IAT sensor is in the location traditionally for MAF sensors.

 

[SHOdded]

Aren't intake cleanings on this platform a bad idea, or has someone figured out how to safely do it without jacking up the turbos?

Ford also says not to R&R PTU fluid ... so take it for what it's worth. But then again, that's why G** created methanol, so we could clean our Ecoboost engine's "backsides"!

 

[rcryniak]

That's the one you upgrade to a 3 bar, correct. The other MAP sensor is on the pipe pre-throttle body, and it is actually 3 bar.

Wait, there's two MAP sensors?? Why two? To measure the difference? I thought all that was required to calculate air volume was temperature and pressure relative to atmospheric, as that would give you how much air is flowing...

 

[rcryniak]

Ford also says not to R&R PTU fluid ... so take it for what it's worth. But then again, that's why G** created methanol, so we could clean our Ecoboost engine's "backsides"!

Well said, my friend, well said... and that just sold me on Meth injection haha... oh that sounds kinda illegal (buh-dump-bump tsssss)... haha

 

[rcryniak]

The MAP is on top of the engine, the IAT sensor is in the location traditionally for MAF sensors.

Huh... just did a quick check, apparently if you have a MAF you can also have an IAT lol, my bad. Livernois CAI puts the IAT after the filter, right the path like a MAF sensor, that's what threw me. (For those of you not in the know, I'm just learning all this stuff... :duncecap_emoticon_that_doesnt_exist_on_shoforum_lol

 

[John Miller]

So, what should I be cleaning then? LOL


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[SHOdded]

Clean the MAP sensor on top of the Intake Manifold, at the very least, clean the other MAP sensor (officially known as the TCBP / CACT [turbocharger boost pressure/charge air cooler temperature] sensor) on the charge pipe attached to the throttle body.

 

[John Miller]

Wow, great info. So, spray it down with .... what? Or just wipe it?


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