MY 2003 FORD F 150 WILL NOT IDLE WHEN STOPPED ,ONCE YOU HIT THE GAS IT WILL RUN FINE UNTILL YOU STOP AGAIN. ANY IDEAS WHAT IS WRONG?

Asked by Aug 13, 2016 at 06:18 AM about the 2003 Ford F-150

Question type: Maintenance & Repair

TRITON 4.6 ENGINE, W IS THE LETTER IN VIN IM STUMPPED

2 Answers

216,685

Most probably a dirty throttle body. Carbon buildup will cause the valve to stick. Clean it out with throttle body cleaner. Check on youtube on how to do it properly. Also clean out the IAC while your at it.

1 out of 1 people think this is helpful.
35,045

If cleaning the throttle body doesn't help it I would suspect the IAC (Idle Air Control). Is the check engine light lit?

Your Answer

Add photo

Related Questions

  • 2003 4.6L f150 fuel problems 7 answers

    Hey, guys new to this site, having fuel problems with a 2003 F150, been a good for Truck for 147,500 mile, until it stopped. Replace fuel pump, wrong!! Problem, contacts on both fuel and pcm relay c...

    2003 Ford F-150 XLT Extended Cab SB

    -

    Maintenance & Repair

  • Help 10 answers

    I have a Ford F-150 fuel pump works gets gas will not start I have no ideal what's wrong replaced fuel pump and filter and gas tank and spark plugs and wires still will not start

    2003 Ford F-150

    -

    Maintenance & Repair

  • what's wrong with my a/c 4 answers

    A/c works fine until I hit a curve or take a turn, then I hear a vent or door "thump" close under the dash. I can turn it to OFF 3 or 4 seconds then turn back to max a/c and it blows cold again unti...

    1999 Ford F-150 Work SB

    -

    Maintenance & Repair

  • 03 f150 brake problems., brakes stop good the petal go to floor. 10 answers

    Repair center said master cyl. replaced 3 times, new pads on rear and bled them out, lines and calipers work as should , now wants to replace the valve up front on drivers side where the lines run to...

    2003 Ford F-150 XL Extended Cab SB

    -

    Maintenance & Repair

  • My Truck doesn't start, no crank 68 answers

    I can only start My truck when I jump start it from the starter solenoid with a screw driver. Other than that when I put my key in the ignition, everything comes on even the chimes still it won't turn...

    2003 Ford F-150 XL Stepside SB

    -

    Maintenance & Repair

Search Ford F-150 Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Ford F-150 Experts

#1 OJ
OJ
Reputation 6,670
#2 dandyoun
dandyoun
Reputation 4,130
#3 tennisshoes
tennisshoes
Reputation 2,470
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,741 Great Deals out of 149,181 listings starting at $1,500
Used GMC Sierra 1500
1,057 Great Deals out of 58,731 listings starting at $1,599
Used Dodge Ram 1500
528 Great Deals out of 13,262 listings starting at $1,800
Used Ford F-250 Super Duty
476 Great Deals out of 41,915 listings starting at $1,999
Used Toyota Tundra
643 Great Deals out of 27,765 listings starting at $3,200
Used Toyota Tacoma
712 Great Deals out of 32,122 listings starting at $2,000
Used Ford Mustang
582 Great Deals out of 41,215 listings starting at $1,699
Used Ford Explorer
1,204 Great Deals out of 71,147 listings starting at $1,000
Used Nissan Titan
245 Great Deals out of 15,282 listings starting at $3,999
Used Chevrolet Tahoe
852 Great Deals out of 28,370 listings starting at $1,700
Used Ford Ranger
228 Great Deals out of 7,053 listings starting at $1,200
Used Chevrolet Colorado
321 Great Deals out of 17,605 listings starting at $2,250
Used Ford F-350 Super Duty
488 Great Deals out of 25,898 listings starting at $2,999

Used Cars For Sale

2017 Ford F-150 For Sale
70,919 listings starting at $18,904
2016 Ford F-150 For Sale
221 Great Deals out of 64,669 listings starting at $8,843
2015 Ford F-150 For Sale
223 Great Deals out of 7,724 listings starting at $18,891
2014 Ford F-150 For Sale
532 Great Deals out of 11,288 listings starting at $11,988
2013 Ford F-150 For Sale
686 Great Deals out of 14,353 listings starting at $8,450