Rolls but doesn't start

10

Asked by Mar 23, 2009 at 06:54 PM about the 1991 Ford F-150 XLT Lariat Extended Cab LB

Question type: Maintenance & Repair

Ok, I wasn't sure about(LB SB?) Just to break this down over the past couple months...

Back in January (minnesota mind you -30 degree weather) my ignition switch broke, I had it fixed; ran good for awhile; up until a month ago the engine started spluttering and idles really low (2 RPM when starts up and drops to 1; but when idling it was 1.5 RPM and drops to .5 RPM) well at this point I replaced all the fuses; put in fuel injector cleaner in it and still ran low.  
Well up until today the alternator rolls but doesn't fire up.  If I gas it; it still does the same thing.  It ran fine the night previously; rained pretty hardcore last night to early morning and now doesn't start... am I missing something or could it possibly be the alternator? or maybe something like the fuel filter/air filter being plugged up?

2 Answers

115

One thing you could try is like you said replace the fuel filter. Another thing that I think could couse it to have these issues is the timing might be off and be in need of ajustment. other than that there are many other things you could do it just depends how much effort you want to put in

1 of 1 people found this helpful.
10

So I replaced the Spark Plugs; Fuel Filter; Changed the Oil; changed the Air Filter. Runs ok, still rolls when it rains have to flip ignition; stop; flip ignition; stop. This will get it to start. Thinking maybe it could be the actual fuel injector... The RPM came up a bit (not completely) but still loses momentum sometimes whilst applying the gas. Sometimes when it starts up it will run for about 5 seconds then clunk out. usually just gotta restart the engine again and it runs fine. Anymore Suggestions?

Your Answer

Ford F-150 Experts

  • #1
    OJ
    Reputation
    9,260
  • #2
    dandyoun
    Reputation
    4,630
  • #3
    tennisshoes
    Reputation
    3,250
View All

Related Models For Sale

Used GMC Sierra 1500
1,110 Great Deals out of 64,988 listings starting at $1,750
Used Ford Mustang
541 Great Deals out of 36,470 listings starting at $1,500
Used Ford F-250
431 listings starting at $2,995
Used Ford Explorer
1,026 Great Deals out of 70,291 listings starting at $2,100

Used Cars For Sale

2018 Ford F-150 For Sale
99,656 listings starting at $17,079
2017 Ford F-150 For Sale
157 Great Deals out of 39,291 listings starting at $17,990
2016 Ford F-150 For Sale
205 Great Deals out of 7,850 listings starting at $16,694
2015 Ford F-150 For Sale
430 Great Deals out of 11,571 listings starting at $11,990
2014 Ford F-150 For Sale
570 Great Deals out of 14,953 listings starting at $9,990

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.