2003 Ford Taurus trouble starting - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Taurus | Mercury Sable | Ford Taurus SHO | 1986-2007 Forum for discussion of the Ford Taurus, Mercury Sable and Ford Taurus SHO. Covers vehicle years: 1986-2007

 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 01-31-12, 05:50 PM Thread Starter
Registered User
 
Join Date: Jan 2012
Posts: 2
2003 Ford Taurus trouble starting

Hi- My 2003 Taurus SES, with 103k miles, intermittently turns over but won't start unless I pump the gas pedal. This only happens when the car has been off for more than a few hours. It had a tune-up at 90k and I've tried fuel system cleaners. Anyone have a idea what could cause these starting issues?

Magickal is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 01-31-12, 06:48 PM
2002 F150 XLT
 
Bert's Avatar
 
Join Date: Nov 2008
Location: Oregon
Posts: 10,300
Re: 2003 Ford Taurus trouble starting

Autozone will pull codes for free. The light doesn't have to be on for a code to be present. Get a can of MAF cleaner and clean the MAF too.

Bert
Bert is offline  
post #3 of 7 (permalink) Old 01-31-12, 10:25 PM Thread Starter
Registered User
 
Join Date: Jan 2012
Posts: 2
Re: 2003 Ford Taurus trouble starting

Didn't know that about Autozone. Thanks
Magickal is offline  
post #4 of 7 (permalink) Old 02-07-12, 12:51 PM
canuck
 
360ci's Avatar
 
Join Date: Nov 2007
Location: Waterloo
Posts: 2,481
Re: 2003 Ford Taurus trouble starting

If you're certain the electrical system (primarily battery and alternator) is good, then I would suggest getting a fuel pressure test done. I had starting problems for nearly a week when the car would start, idle at 400rpm for a few seconds and shut off. Other days it ran good but on occasion would bog on the highway. On occasion too, I had to crank the engine and try to force fuel in by pressing on the accelerator.

New pump OEM Ford $820 Canadian with labour. I looked into aftermarket pumps and for $120 more, the Ford unit comes with a full two year warranty and if the car lasts me another 13 years, I'll have gotten my monies worth.

'11 Ram Quad Cab 4x4 SXT 5.7L HEMI (stock); 48,500m
'06 Pontiac G6 GT 3.5L 220hp; 64,000m
'12 Chrysler 200 Limited 3.6L 283hp; 28,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!
360ci is offline  
post #5 of 7 (permalink) Old 02-09-12, 06:03 PM
Registered User
 
Join Date: Feb 2012
Posts: 28
Re: 2003 Ford Taurus trouble starting

If memory serves, pressing the accelerator on a fuel injected car simply opens the butterfly on the throttle body and does not add extra fuel. This would lead me to believe that it may be running a bit rich which would be a fuel pressure problem.
It's a theory anyway.
tonyb1968 is offline  
post #6 of 7 (permalink) Old 02-12-12, 08:56 AM
Registered User
 
RickMN's Avatar
 
Join Date: Jul 2007
Posts: 231
Re: 2003 Ford Taurus trouble starting

Pressing the accelerator to the floor and holding it there puts the computer into "flood mode." That opens the throttle plate and stops the flow of gas. BUT, pressing the accelerator part way DOES add gas. That's usually the sign of a bad coolant temp sensor or a dirty MAF sensor.

I'd start by cleaning the MAF (since it's easy and cheap). See link below. Then I'd replace the engine coolant temp sensor. A bud sensor tells the computer that the engine is warmer than it really is. So the computer provides too-lean of a mixture. So when you pump the pedal, you're goosing the gas and that's why it starts.

Clean a MAF sensor

I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology. Visit my blog for cool articles and TSB's: http://www.ricksfreeautorepairadvice.com/
RickMN is offline  
post #7 of 7 (permalink) Old 02-12-12, 08:55 PM
Registered User
 
Join Date: Feb 2012
Posts: 28
Re: 2003 Ford Taurus trouble starting

As I said, I guess it was a theory...and only about half right, as usual.
tonyb1968 is offline  
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Cars and PAG Vehicles > Ford Taurus | Mercury Sable | Ford Taurus SHO | 1986-2007
Gear in this thread - Powered by O'Reilly Auto Parts


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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