Check Engine light

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Oct 31, 2018 | 10:19 AM

ernsppw

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From: Lonoke, Arkansas

Check Engine light

Got a CE light on my way to work this morning. Seemed to run smooth but every once in a while it seemed to get a little sluggish for a split second. Don't know where to even start looking. I hope I can get the beast home tonight. What scan tool works best on these trucks?

Oct 31, 2018 | 10:24 AM

knottyrope

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From: Bahstun

do not go to an auto store for one

things to check while placing an order
Do you have more than 1/4 tank fuel? Shower head is known to break or suck air
measure fuel pressure with a tire gauge
last time you changed fuel filter?
Oil level full? low oil will cause injectors to stop running

scanner to monitor your engine

https://www.amazon.com/Vgate-Bluetooth-Scanner-TORQUE-ANDROID/dp/B00AAOOQJC/ref=sr_1_1?ie=UTF8&qid=1473776759&sr=8-1&keywords=vgate+OBD2

Torque Pro
https://play.google.com/store/apps/d...g.prowl.torque

Use the communication in the profile
SAE J1850-PWM

make sure you add in Ford PIDs

https://play.google.com/store/apps/d...ch.CarGaugePro

people like it cause it will pull codes, buzz test and CCT

Warning, Some OLD PCM's have to be flashed before you can pull codes

Oct 31, 2018 | 11:14 AM

ernsppw

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From: Lonoke, Arkansas

First thing I did was check oil, it was good. Oil change ~2k miles ago. Changed fuel filter about the same time. Removed tanks and replaced shower heads when I bought the truck ~8k ago. New stock fuel pump about the same time. I have noticed my fuel pressure fluctuates from 50 to 70 lbs and back when I'm @ 65 or 70 mph.

Oct 31, 2018 | 12:57 PM

knottyrope

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Joined: Apr 2016

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From: Bahstun

so long as fuel does not drop below 45 PSI at WOT, you should be good

you need to get the codes that are stored or its an expensive guessing game

Oct 31, 2018 | 01:06 PM

ernsppw

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From: Lonoke, Arkansas

Quote:

Originally Posted by knottyrope

so long as fuel does not drop below 45 PSI at WOT, you should be good

you need to get the codes that are stored or its an expensive guessing game

I'll check that fuel filter when I get back to my shop. Do I need to get all three of those scan items in the links you sent me? I'm assuming the 2nd and 3rd link is for the software for the 1st?

Oct 31, 2018 | 03:48 PM

knottyrope

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Joined: Apr 2016

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From: Bahstun

I drain my filter for water first since it can impede flow of fuel
Then see if filter is clogged
if black and slimy, you might have algae growing in tanks
if dark it could be an injector oring failing

1st is the dongle I use with an android phone

2nd is the phone app I use
3rd is used by some for the tests the other does not have

Nov 1, 2018 | 10:45 AM

ernsppw

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From: Lonoke, Arkansas

Update- Looks like it's just a clogged filter. Drained the bowl right before I left for home after work. No CE light all the way (30miles). I still notice my fuel pressure goes up and down sometimes below 40lbs. I'm thinking I've put off the E-fuel long enough and just need to bite the bullet. Anybody got a suggestion that won't break the bank?