03 random shutdown/ hickups
Thread Starter
|
Senior User
Joined: Jun 2007
Posts: 129
Likes: 0
03 random shutdown/ hickups
i have an 03 f350 6.0 every now and again if its just idleing it will just shut down but then will fire right back up and have no cel if im driving it will give me a hickup lose power for a fraction of a second then come right back on. Any ideas whats going on here. It has 183xxx on it a cai edge juice module (stays on the lowest setting most of the time) and muffler/cat delete not really sure where to start
Lead Driver
Joined: Sep 2012
Posts: 7,833
Likes: 96
From: Manteca,Ca
Berry,check Ficm volt no less than 47.5 /48 ,whats batterie 14.amp , check separete , next alt. do you have a gauge to read live data? Hicup like stall out ( fast rpm at Idiol siten at a light) jump the truck?
Hotshot
Joined: Apr 2010
Posts: 19,072
Likes: 243
From: Saratoga Springs,UT
Next time it dies dont try to restart or anything
Check the Upper Fuel bowel for fuel when it dies
scan for DTC
Remove tunner
Get a gauge to read live data at OBDII Port
I use scangaugeII they sell at autozone
Sounds like a Shorted wire
Some DTC take multiple drive cycle failures to set
Check the Upper Fuel bowel for fuel when it dies
scan for DTC
Remove tunner
Get a gauge to read live data at OBDII Port
I use scangaugeII they sell at autozone
Sounds like a Shorted wire
Some DTC take multiple drive cycle failures to set
Thread Starter
|
Senior User
Joined: Jun 2007
Posts: 129
Likes: 0
When I say hick up mean cruising at 60 or whatever speed engine shuts down and re fires all in about a seconds time the ficm was replaced end of last year just did fuel filters yesterday will check connections in the morning
Lead Driver
Joined: Sep 2012
Posts: 7,833
Likes: 96
From: Manteca,Ca
Berry, OEM oil and FUEL filters are best for these trucks ,no after market filters check and make sure the oil cap is OEM , DO you have a gauge to read live senser data , -like(scangaugeII or dash boss ) in like- readings in temp sensers will help us help you. remember take the readings like This
!. koeo ( key on Engine Off)+ (make note)
2. start ( low Idol)=(make note)
3. 2500 rpm _( make note)
all at warm engine temp 195 is good.
Like to know what kind of oil ur useing , most use 5w 40 synthec rottella what are you running? have you cleaned your EGR lately? are you reading HOT temps? and what coolent have you been running plus flush? sorry lots to look at but recomended
!. koeo ( key on Engine Off)+ (make note)
2. start ( low Idol)=(make note)
3. 2500 rpm _( make note)
all at warm engine temp 195 is good.
Like to know what kind of oil ur useing , most use 5w 40 synthec rottella what are you running? have you cleaned your EGR lately? are you reading HOT temps? and what coolent have you been running plus flush? sorry lots to look at but recomended
Trending Topics
Thread Starter
|
Senior User
Joined: Jun 2007
Posts: 129
Likes: 0
I bought the truck end of last year haven't yet gotten a scan gauge for it I'm running amsoil and napa gold oil filter and motor craft fuel filters. Haven't cleaned the egr will look into that and my temp gauge just says hot and cold have no idea what temps I'm running if its warm out needle is in the middle cold out barely gets off cold
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Lead Driver
Joined: Sep 2012
Posts: 7,833
Likes: 96
From: Manteca,Ca
I'm not sure the napa filter would be an Issuie as long as its the same height as OEM filter, mite be some thing to look into.also the cap that has to OEM as far as your mod can you unhook it and run stock to see if that helps.as Benny has stated check the wireing harness for Chaffing lots of places to rub on ,in the tech folders theres a list of places to look make sure ficm is plugged in all three plugs
Hotshot
Joined: Apr 2010
Posts: 19,072
Likes: 243
From: Saratoga Springs,UT
I bought the truck end of last year haven't yet gotten a scan gauge for it I'm running amsoil and napa gold oil filter and motor craft fuel filters. Haven't cleaned the egr will look into that and my temp gauge just says hot and cold have no idea what temps I'm running if its warm out needle is in the middle cold out barely gets off cold
Sounds like you need a thermostat & EGR Valve Cleaning
The Temp Gauge SUCKS in these trucks so if it reads Cold Its REALLY COLD ECT Thermostat could be Stuck OPEN
Pretty good chance the EGR Valve is all Gooey needs cleaning if it runs Cold
You also may see a MPG Incress with new thermostat since Heat is part of whats needed for Proper/Thuro diesel fuel Combustion!!
Hotshot
Joined: Apr 2010
Posts: 19,072
Likes: 243
From: Saratoga Springs,UT
Pull it and you can SOAK the Bottom Half in cleaner
But be careful NOT to get Liqued into the weep Holes by the gasket area or up in electronics part
I found the best way to get the EGR Valve out is too use 2 Pry bars
I use 2 like this
Use use these for work so mine have been hit by a Belt Sander to make the tips Thinner and very sharp
But use 2 and position them so that they Oppose each other and pry up evenly it will pop right out
Using only 1 prybar is way harder since when you only pry 1 side it puts the egr valve on a BIND and Pinches it in there
Maybe you can work around it with 1 IDK
2 bars work slick
SOme undo bolts and turn egr valve to where they can Loop Wire threw the bolt holes and then use Something to go threw the wire loop and pry it up
Wire trick works but bars are way slicker
Thread
Thread Starter
Forum
Replies
Last Post
radskull
1999 - 2003 7.3L Power Stroke Diesel
94
Sep 24, 2019 01:41 PM