2004 5. superscrew, 74K, air force intake, Magowflow SI/DO, superchip (old) tuner set 87

Normal driving.

replaced sparks with no problem at 40K

change oil every 4-5K with mobil one.

I noticed this when i turns quick left or right it stalls.

NO CEL light-- nothings warning light up...

It happens 3-4x in a few months...I turned motor on, it started up quick like normal..

what is possible cause this ?

Thanks!
Jake

 

The lack if routine maintenance?

Clean your tb
Clean your maf
Change your fuel filter.....

Look in the "how to's" section of the forum for complete details....

 

what 88 said

 

1 and 2 done last aug

Fuel filter yikes back to 35k <----- guess need replace it.

5/8" for gas disconnect? I think I remembered :-)

Thanks
Yoman

 

Might want to give this a look see based on your location: https://www.f150online.com/forums/ar...placement.html

 

Canned tunes with a CAI? It may be running excessively lean.........

Does it do it with the stock tune loaded?

 

Yep start here. Clean TB and replace that fuel filter. Doubt it's the FPDM but I'd check it for obvious signs of crackage.

There have been a couple posts about this issue lately.... Strange.

 

Cai? Please explain thanks!

Tuned as stock 87 by superchip..Since 2005 same as for air intake system.

Never have this issue until recenlty.

Wow thanks for link I'll check it too

I'll do fuel filter first.

Thanks
Jake

 

Cold Air Intake=CAI....
Aftermarket air intake track....replaces the stock one.
Example>>>

 

I think the clue here is its quits on quick turns-left or right. To me sounds electrical. aLoose connection..

To the OP- Do you have power - dash lights etc. after it stalls?

 

Oh DUH me!

yeah i have Air Force one....Never has problem with it UNTIL recenlty..

I was told if its too LEAN then warning CEL will light on ? no?

Maybe need to have filter clean (?) I just cleaned it last Aug too oh well.

Thanks!
Jake

 

You can be running lean and never know it. Just not so lean as to throw a code. Running lean over a long period of time can do some damage to valves and cylinders. That is why the arguement some throw out wanting proof there is damage does not hold water. An engine that might have lasted 200,000 miles had it not been running lean, may fail in 100,000. Running one wide open in a very lean condition will usually give you much quicker and more visable damage.

 

I see....SHould i remove it and put stock back on now ? Its now 73K

How do i know if it runs lean or not ? Is there any test for it ?


I wonder if old superchip tuner (troyer) 1714 will adjust it lean/rich ?

Thanks!
Jake

 

A dyno with someone that knows how to tune properly can tell you if it's lean and can do a custom tune to fix it, if it's needed.

Also, you can get tunes written for specific calibration that allows for the intake from Troyer, PHP, VMp and othrs.

 

My truck is all stock cept for a k&n filter with all the maintenance done regular. Does it if I was turning, hit railroad tracks, and today did it while driving down the highway. 06 5.4 with 60k miles. Something is for sure wrong.