2004 F150 RUNS ROUGH AND stalls while coming to a stop. new timing chain, guides and tensioners. timing was done correctly. I have checked and cleaned the throttle body. put in new plugs and checked

40

Asked by Sep 03, 2014 at 05:35 PM about the 2004 Ford F-150 XLT

Question type: Maintenance & Repair

2004 F150 RUNS ROUGH AND stalls while coming to a stop. new timing chain, guides
and tensioners.  timing was done correctly. I have checked and cleaned the throttle
body. put in new plugs and checked for vacumn leaks. i disconnected the battery and
reconnected to go thru the relearn proceedure, and now there is no throttle. pushing the
peddle does nothing.
so in order,

1.) rough idle
2.) stalling, but runs great at higher rpm.
3,) no electronic throttle.

Im going nuts with this. is there any checks i can do at home to find the issues? I have
also cleaned the maf, and the throttle body. no codes, but the mil light is on . seems to
be a problem with these trucks it seems. found numerous complaints about this. help
someone

2 Answers

40

a little update. fixed throttle issue. now have learned that these engines when they drop oil pressure cannot operate the timing correctly. hot oil idle pressure is 20 psi. Cold is perfect, but drops as it warms. 130,000 miles. only oil ever used is the recommended motorcraft, and it has always been changed as specified. what is the recommended hot idle psi? I got a funny feeling its engine replacement time. any of you 5.4 triton experts have any suggestions?

4 out of 4 people think this is helpful.

Scott did you ever get anywhere with this because my truck has exact same symptoms

Your Answer

Add photo

Related Questions

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 6,290
#2 dandyoun
dandyoun
Reputation 3,970
#3 tennisshoes
tennisshoes
Reputation 2,370
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,623 Great Deals out of 148,186 listings starting at $1,800
Used GMC Sierra 1500
1,138 Great Deals out of 57,455 listings starting at $995
Used Dodge Ram 1500
528 Great Deals out of 12,901 listings starting at $1,795
Used Ford F-250 Super Duty
468 Great Deals out of 42,477 listings starting at $2,995
Used Toyota Tundra
642 Great Deals out of 28,026 listings starting at $1,599
Used Toyota Tacoma
776 Great Deals out of 33,028 listings starting at $1,900
Used Ford Mustang
682 Great Deals out of 38,187 listings starting at $1,750
Used Nissan Titan
231 Great Deals out of 14,416 listings starting at $4,299
Used Ford Explorer
1,381 Great Deals out of 71,973 listings starting at $985
Used Ford Ranger
217 Great Deals out of 6,922 listings starting at $1,500
Used Chevrolet Tahoe
1,042 Great Deals out of 32,012 listings starting at $1,495
Used Chevrolet Colorado
322 Great Deals out of 16,955 listings starting at $2,195
Used Chevrolet Silverado 2500HD
433 Great Deals out of 28,916 listings starting at $2,998

Used Cars For Sale

2017 Ford F-150 XLT For Sale
1,874 listings starting at $17,605
2016 Ford F-150 XLT For Sale
216 listings starting at $17,892
2015 Ford F-150 XLT For Sale
6 listings starting at $24,998
2014 Ford F-150 XLT For Sale
35 listings starting at $11,883
2013 Ford F-150 XLT For Sale
28 listings starting at $12,443