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
    8,950
  • #2
    dandyoun
    Reputation
    4,550
  • #3
    tennisshoes
    Reputation
    3,070
View All

Related Models For Sale

Used GMC Sierra 1500
857 Great Deals out of 65,108 listings starting at $2,495
Used Ford Mustang
669 Great Deals out of 37,869 listings starting at $895
Used Ford F-250
473 listings starting at $4,000
Used Ford Explorer
833 Great Deals out of 63,646 listings starting at $1,000

Used Cars For Sale

2018 Ford F-150 For Sale
35,852 listings starting at $19,355
2017 Ford F-150 For Sale
126 Great Deals out of 77,270 listings starting at $17,989
2016 Ford F-150 For Sale
116 Great Deals out of 7,766 listings starting at $18,989
2015 Ford F-150 For Sale
308 Great Deals out of 10,858 listings starting at $15,995
2014 Ford F-150 For Sale
427 Great Deals out of 13,874 listings starting at $10,995

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.