2005 F150 5.4 3V Hard Start on first try. - FordTough.ca - Home of Canadian Ford Truck Enthusiasts
F-150 2004 to 2008 Forum XL, XLT, STX, LARIAT, FX4, FX2

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 12 (permalink) Old 08-18-2015, 11:45 PM Thread Starter
Forum Newbie
 
Join Date: Aug 2015
Location: Lethbridge, Alberta
Posts: 3
2005 F150 5.4 3V Hard Start on first try.

I bought a used 2005 F150 with a 5.4 3V engine and since I had it it's hard to start usually just on the first try; if you try it on the second try it starts right up no issues. I have tried lots of things replacing the engine Oil/Coolant Temperature sensor (screws into the side of the oil pan), replaced Fuel Pump Drive Module, replaced the VCT solenoids in the engine, replaced the air filter, and replaced the fuel filter I even sprayed the MAF sensor with MAF sensor cleaner and sprayed the throttle body with throttle body cleaner. Another thing I tried is just priming the engine 5-6 times usually fixes the hard start, so I'm thinking it's either the check valve in the fuel pump assembly or the fuel rail pressure/temperature sensor? What do you guys all think might be the problem?
ajschwab2004 is offline  
Sponsored Links
Advertisement
 
post #2 of 12 (permalink) Old 08-19-2015, 09:46 AM
 
Canadian Bacon's Avatar
 
Join Date: Mar 2013
Location: Milton/ Georgetown, Ontario
Posts: 741
Have you changed the spark plugs? Is it only in the morning or if you turn it off go into a store and come back out also?

Nicole - 2004 Ford F-150 Lightning #3573
Emily - 2010 Ford F-150 FX4

Amsoil Independent Dealer
Amsoil Home Page
Canadian Bacon is offline  
post #3 of 12 (permalink) Old 08-19-2015, 02:59 PM Thread Starter
Forum Newbie
 
Join Date: Aug 2015
Location: Lethbridge, Alberta
Posts: 3
It does it all the time if I go into a store and its off for like 25 mins hard to start and if I try it in the morning for the first time hard to start. The only thing that works for me is if I prime it 5-6 times like if I'm building up fuel pressure to start that is the only thing that works.
ajschwab2004 is offline  
 
post #4 of 12 (permalink) Old 08-23-2015, 09:20 AM
 
Big Daddy D.'s Avatar
 
Join Date: Apr 2010
Location: Brantford Ontario
Posts: 260
I would be checking the fuel pressure, with your mechanic, as well as for codes.

Press on regardless!
Big Daddy D. is offline  
post #5 of 12 (permalink) Old 08-23-2015, 11:26 AM Thread Starter
Forum Newbie
 
Join Date: Aug 2015
Location: Lethbridge, Alberta
Posts: 3
I work at Ford Dealer as a Lube Tech we hooked up to the computer and gave no codes. Even checked the fuel injectors to see if one was stuck open and the computer showed the injectors had no faults.
ajschwab2004 is offline  
post #6 of 12 (permalink) Old 08-23-2015, 01:23 PM
 
I like Fords Too's Avatar
 
Join Date: Nov 2012
Location: Scarborough Ontario
Posts: 709
sounds like the fuel pessure is bleeding down when shut off

if nothing's leaking and the injectors are good I bet fuel pump is loseing it's inner sealing ableity being ten years old
I like Fords Too is offline  
post #7 of 12 (permalink) Old 08-24-2015, 06:58 AM
 
Destructicon's Avatar
 
Join Date: Mar 2010
Location: Stoney Creek, Ontario
Posts: 1,539
Garage
Why does everyone rely on the computer to give them a code for things?

Electrician, powered by Tim Hortons, brought to you by Ford. Java Inside!
The Past - 1976 F-350 Crew Cab 1992 - 2006 RIP
The Past - 1995 F-150 XL Enforcer All Gear Drive 2008 - 2015
The Present - 1993 F-250 XLT Turbo Diesel Super Cab 4x4 2015 - ?
The Future - Who knows?
Destructicon is offline  
post #8 of 12 (permalink) Old 08-24-2015, 11:59 AM
 
I like Fords Too's Avatar
 
Join Date: Nov 2012
Location: Scarborough Ontario
Posts: 709
because often it will give you the source problem or relay info related to an effect from the problem

good diagnostic procedure to check for codes

my old turbo fwd mopars were much better though as all you needed was to turn the key 3 times and the engine light would flash the codes for you

no computer / code reader needed

ford and gm always required a code reader which is gay - just brings more people into the shop because they can't read the codes themselves

granted it isn't always going to find an issue ... but if it does it's gonna save a butt load of time
I like Fords Too is offline  
post #9 of 12 (permalink) Old 04-19-2016, 07:16 AM
 
Big Daddy D.'s Avatar
 
Join Date: Apr 2010
Location: Brantford Ontario
Posts: 260
Quote:
Originally Posted by I like Fords Too View Post
because often it will give you the source problem or relay info related to an effect from the problem

good diagnostic procedure to check for codes

my old turbo fwd mopars were much better though as all you needed was to turn the key 3 times and the engine light would flash the codes for you

no computer / code reader needed

ford and gm always required a code reader which is gay - just brings more people into the shop because they can't read the codes themselves

granted it isn't always going to find an issue ... but if it does it's gonna save a butt load of time
I agree... one must start somewhere...

Press on regardless!
Big Daddy D. is offline  
post #10 of 12 (permalink) Old 09-13-2017, 03:09 AM
Forum Newbie
 
Join Date: Sep 2017
Location: Brampton, Ontario
Posts: 4
Well, i got my 4.6 and no issues. I would check the fuel pump, seems like the issue.
Dewast is offline  
Reply

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
4.0L Ranger - Hard Start Blue Oval Ranger Forum 5 12-07-2014 01:07 PM
NEED HELP: 2005 Silver Metallic F150 XLT 4X4 5.4L 3.55 Ratio 145WB Scab deviance159 F-150 2004 to 2008 Forum 15 05-31-2013 06:19 PM
NEED HELP: Replace/Upgrade Foglight bulbs 2005 F150 Arn Lighting 4 10-28-2008 09:42 PM
2007 XLT 4.0L hard to start.....WTF?? Chienlaid Ranger Forum 12 07-30-2008 10:22 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome