• Welcome to Ecoboost Performance Forum. Please log in or sign up.
collapse

Intermitent Power Issue

Started by EAST TX SHO, March 16, 2017, 03:57:37 PM

Previous topic - Next topic

EAST TX SHO

Started noticing when I'm at highway speed and I floor it, the car doesnt surge forward like it used to.  Seems to be a slower pick-up in speed.... holding gears longer.
Took i to the dealer - their transmission guy couldnt find anything wrong.... no error codes, etc.
Seems I can hear the BOVs more pronounced that before.  Low speed acceleration doesnt seem to suffer.  ALWAYS burn premium gas, have even gone thru a couple of tanks in case it was a bad batch of gas.
2015 PP with 47k miles. Stock car except K&N drop in filter.
ANY THOUGHTS? 
17 Explorer Sport Twin Turbo
15 SHO PP hard loaded

93 SHO

SHOdded

Any fuel smell?  To eliminate injector/cat issue.

No codes?  No other symptoms like jerking/bucking/etc?  If the wastegates are malfunctioning, you would expect to get some over/underboost codes.  Check turbo piping for loose/cracked hoses.  That includes the smaller hoses on top of the intake manifold.
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

EAST TX SHO

THANKS for the input SHODDed,
No smell.
No codes, no jerking.
I'll check the hoses
17 Explorer Sport Twin Turbo
15 SHO PP hard loaded

93 SHO

derfdog15

Quote from: EAST TX SHO on March 16, 2017, 04:12:15 PM
THANKS for the input SHODDed,
No smell.
No codes, no jerking.
I'll check the hoses

My car didnt throw codes, but was underboosting. Would try to make peak boost for ~ 4 seconds then ECU would shut it down. DO you have a boost gauge or way to monitor? I came to the conclusion a wastegate was stuck, was going to look into it more but got ran off the road so I'll have to fix it after I get the car back.
2015 Tuxedo Black SHO PP -(SAE corrected): 369.4/451.4 - Gone to the automotive graveyard but not forgotten

2016 F150 FX4 Sport - 3.5L V6 Ecoboost - Stock for now

2003 Redfire V6 Mustang - Building to be an 11 second car

EAST TX SHO

FINALLY. Found a disconnected vacuum line- 1st one behind front BOV. hearing it's a common problem.... no clamp on it. Wasn't allowing turbos to come to full boost... so it was more noticeable at higher speeds. Checked the wife's 17 Explorer Sport.... hose already starting to slide off. $45-$50k vehicles each.... can't ford spend another 20 cents?
17 Explorer Sport Twin Turbo
15 SHO PP hard loaded

93 SHO

SHOdded

Quote from: EAST TX SHO on March 18, 2017, 03:12:12 PM
can't ford spend another 20 cents?
Nope. LOL.  Glad you found the loose tube.  So all is fixed then?
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

EAST TX SHO

Runs like new! I appreciate everyone's help. Damn techs at Ford dealership see so few SHOs in a small town, when they test drive they don't know what it's supposed to do. Both my vehicles have the same engine... guess I'll be the new expert in town
17 Explorer Sport Twin Turbo
15 SHO PP hard loaded

93 SHO

Heelfan1

Quote from: EAST TX SHO on March 18, 2017, 03:56:27 PM
Runs like new! I appreciate everyone's help. Damn techs at Ford dealership see so few SHOs in a small town, when they test drive they don't know what it's supposed to do. Both my vehicles have the same engine... guess I'll be the new expert in town

I know what you mean.. took mine in and told the service writer that I had a noise that sounded like a drivers front wheel bearing going bad. Under warranty btw.. he said they would check it out.. well long story short after 5 trips to the dealer I ended up with both axles replaced, and two new wheel bearings. The last thing they replaced was the drivers front bearing which fixed the issue. Long story short I got a totally new front end basically at no cost to me other then the aggravation of taking it to them 5 times.
2013 SHO non PP LMS Tuned, 160ts, 3 Bar, CAI, DP's
2013 EX Sport, LMS Tuned, 160ts,3 Bar, CAI
2018 Raptor H.O. Ecoboost LMS Tuned
2011 F150 Harley Edition 6.2 AWD(sold)
Whipple SC, JDM Tuned 600+ hp

ZSHO

#8
Its sad to say but most Techs are only trained to follow TSB/SSM Protocol and are not to well versed with this platform with the exception of the F-150 IIRC. but glad it was an easy fix and you can get back to enjoying the SHO of a lifetime. Z  :)


2013 Performance Package SHO| Livernois Custom Methanol Tune|3-Bar Map|Reische-170-Stat|Full Race Tial-10psi BOV in Black|PPE-Gloss Black Hot Pipes|EPP Dual Intake in Gloss Black|PPE Catted DP|Corsa Sport Cat Back Exhaust|H&R Sport-Springs|CFM Performance Billet Valve Cover Breather In Gloss Black|Llumar 20%Ceramic window Tint|MSD Ignition Coils in Black|Extreme Roof Spoiler|Redline Fluids all around|Gearhead Intercooler|First-SHO With Direct Port Alky-VP-M1-100%-Methanol Injection|LMS-Custom-Dyno-Tuned @ 415whp-465wtq| Best Trap Speed of 115.54 mph|