Car won't start after sitting for a day or so - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus Tech Discussions > Focus Tuning Chat

Focus Tuning Chat Discuss performance tuning options for your Ford Focus.

Search This Forum | Image Search | Advanced Search    
FocusFest FocusFanatics Merchandise

Reply
 
LinkBack Thread Tools Display Modes
Old 09-03-2010, 08:13 AM   #1
Focus Jr. Enthusiast
 
Join Date: Jan 2008
Fan#: 52592
Location: Canton, Ohio, United States
What I Drive: 1999, Black, Zetec Cougar

Posts: 47
Points 320, Level 6
Points: 320, Level: 6 Points: 320, Level: 6 Points: 320, Level: 6
Level Up 40% Completed
Level up: 40% Level up: 40% Level up: 40%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 2 cbman Good Standing Member
Buy-Sell-Trade Rating: (0)
Car won't start after sitting for a day or so

My car seems to be harder to start the longer it sits. If it has been sitting for 8 hours it will start ok, but if it has been sitting longer than a day it take multiple tries to get it to start.

This Spring I had to replace the spark plugs because I just couldn't get it to start, even after killing an old battery. The plugs were wet and looked dark and sooty. To get it to start I reduced the cranking fuel plusewidth, but I am still having an issue where it takes multiple tries to get it started. When it does start it rumbles around 300 RPM for a couple seconds.

I reduced the Crank Fuel PW to what I though it should be based on the 50# injectors I have and then some more. Also, my IAC Duty is .99 during cranking.

Oh, and I have a Turbocharged Zetec Cougar w/ 8.5:1 CR built.


cbman is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 09-03-2010, 09:30 AM   #2
Focus Addict
 
Notorious0ne's Avatar
 
Join Date: Nov 2009
Fan#: 70375
Location: Lehigh Valley, PA
What I Drive: 05 Saleen Focus, 04 Saleen Focus

Posts: 1,285
Points 7,930, Level 59
Points: 7,930, Level: 59 Points: 7,930, Level: 59 Points: 7,930, Level: 59
Level Up 90% Completed
Level up: 90% Level up: 90% Level up: 90%
Forum Activity 3%
Activity: 3% Activity: 3% Activity: 3%
FF Reputation: 15 Notorious0ne Great Standing Member
Buy-Sell-Trade Rating: (6)
you might have to get your computer tuned. so you get the correct mixture of fuel and all that fun shit. look up spark plug meanings like the colors and all that
__________________
2004/2005 Ford Focus Saleen

The cops are here to keep us safe.............I'm here to keep them busy!

Hatch Nation #43
Notorious0ne is offline  
    Reply With Quote Quick reply to this message
Old 09-03-2010, 09:34 AM   #3
FF Affiliate
 
1turbofocus's Avatar
 
Join Date: Oct 2003
Fan#: 1123
Location: Belmont, NC
What I Drive: 2000 ZX3 / 2002 SVT Turbocharged

Posts: 23,251
Points 54,724, Level 100
Points: 54,724, Level: 100 Points: 54,724, Level: 100 Points: 54,724, Level: 100
Level Up 0% Completed
Level up: 0% Level up: 0% Level up: 0%
Forum Activity 47%
Activity: 47% Activity: 47% Activity: 47%
FF Reputation: 154 1turbofocus Excellent Standing Member 1turbofocus Excellent Standing Member
Buy-Sell-Trade Rating: (28)
You shouldnt be messing with the crank fuel PW at all , you need to get the Inj set correct and the MTF

If you need some help just let me know

Tom
__________________
Focus-Power: Your #1 Source for Ford Focus Speed, Tuning & Performance!

Customer Support
AIM: hpdyno
Email: hpdyno@aol.com
Phone: 704-249-3745
Site: focus-power.com

Elder 1turbofocus
1turbofocus is offline  
    Reply With Quote Quick reply to this message
Old 09-03-2010, 10:25 AM   #4
Focus Jr. Enthusiast
 
Join Date: Jan 2008
Fan#: 52592
Location: Canton, Ohio, United States
What I Drive: 1999, Black, Zetec Cougar

Posts: 47
Points 320, Level 6
Points: 320, Level: 6 Points: 320, Level: 6 Points: 320, Level: 6
Level Up 40% Completed
Level up: 40% Level up: 40% Level up: 40%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 2 cbman Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by 1turbofocus View Post
You shouldnt be messing with the crank fuel PW at all , you need to get the Inj set correct and the MTF
Tom,
Isn't it true that when you increase injector size you need to scale crank fuel PW? A reduced pulsewidth so the larger injectors are putting out the same amount of fuel during cranking. I just used an SCT Load file for my 50# injectors. What settings do you think might need corrected?

I can't remember off the top of my head, what is MTF?

Edit: OK, MTF is likely MAF Transfer Function

Last edited by cbman; 09-03-2010 at 01:48 PM.
cbman is offline  
    Reply With Quote Quick reply to this message
Old 09-04-2010, 03:01 PM   #5
Focus Jr. Enthusiast
 
Join Date: Jan 2008
Fan#: 52592
Location: Canton, Ohio, United States
What I Drive: 1999, Black, Zetec Cougar

Posts: 47
Points 320, Level 6
Points: 320, Level: 6 Points: 320, Level: 6 Points: 320, Level: 6
Level Up 40% Completed
Level up: 40% Level up: 40% Level up: 40%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 2 cbman Good Standing Member
Buy-Sell-Trade Rating: (0)
Well, It looks like I have much more than a tuning issue. I pulled the plugs and they looked black and wet.

There was a faint sound of pressure being relieved, and it sounded like a very faint hissing. So, I was puzzled for a while where this sound could be coming from. I looked into the cylinders with a flashlight from the plug holes, and it looked like there was moisture beading up on the pistons. So, I decide to take off the coolant cap and it was pressurize so much that it blew the cap out of my hand and made a loud pop.

So, it looks like I may have a head gasket leak that is letting coolant slowly bleed into the cylinders. I wonder if pressure from the cylinders could actually be getting into coolant system.

Another issue is that the top insulators on two of my spark plugs were cracked. I've never heard of this happening and have no idea what to think of it. BTW, these plugs have only been in for a few months.

Now, I think i might know why I could have a head gasket leak. I have ARP head studs and supposedly you should wire-wheel the coating off of the studs and you're supposed to re-torque the head studs after the engine has had some warm-up cycles. I did not do either of these two things. So, it looks like I'll probably be taking out the head studs or just re-torquing them.
cbman is offline  
    Reply With Quote Quick reply to this message
Reply

Bookmarks & Social Networks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
What I Drive
Year, color, and model of your car. Example: 2003 Pitch Black ZX3
Name
Your real name.
City
State
Country
Insurance
Please select your insurance company (Optional)

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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



All times are GMT -5. The time now is 09:33 PM.


Copyright 2002-2015 FocusFanatics.com. All Rights Reserved : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Mazda CX-3, Audi S3, Mazda MX-5 Miata and Acura TLX. You can find all Ford Focus, Focus ST and Focus RS related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. If you own other makes have a look at Challenger Hellcat Forum, Charger Hellcat Forum, Cadillac ATS-V Forum, Cadillac ATS Forum, Cadillac CTS-V Forum, Lexus RC-F Forum, Lexus GS-F Forum, Mercedes GLA Forum, Mercedes GLE Forum, Civic Type-R Forum and Volvo XC90 Forum.





Search Engine Optimization by vBSEO 3.6.1