91 F150 5.0 Have spark and fuel but wont start

Asked by Dec 08, 2015 at 12:24 PM about the 1991 Ford F-150 XLT Lariat SB

Question type: Maintenance & Repair

I have a 1991 Ford F-150 5.0. My fuel pump works, new fuel filter, new coil,
new plugs & wires, new entire distributor and still wont start. Before it shut off
on me it had really poor mpg's, shaky idle, and the rpm hand would act crazy
jumping all over the place. Any help please????

3 Answers

755

Check the timing it sounds maybe like the timing jumped. It could also be that the brain box for the dist is bad. On ur truck is there a gray box on the dist or does it have two plugs coming off the dist?

It has two plugs . I haven't checked the timing but would that keep it from not starting at all?

755

The timing will most deff cause it not to start, the two plugs should go to a silver box on the driver side fender. Pull the dist back out put a socket and a large breaker. Bar on the blot for the harmonic balancer wit some one at the top looking down at the engine u will need to do a TDC (Top Dead Center) that is when piston one is at its furthest reach inside the cylinder once u have it at TDC go ahead and put the dist back in and try that

Your Answer

Add photo

Related Questions

  • 91 F150 5.0 Have spark and fuel but wont start 3 answers

    I have a 1991 Ford F-150 5.0. My fuel pump works, new fuel filter, new coil, new plugs & wires, new entire distributor and still wont start. Before it shut off on me it had really poor mpg's, shaky ...

    1991 Ford F-150 XLT Lariat SB

    -

    Maintenance & Repair

  • 96 f150 5.0 cranks but wont start 4 answers

    I have a 96 f150 5.0. It cranks but wont starts. Ive replaced the wire harness and yes everything is connected. Replaced the vaccuum lines one by one. Wires and spark plugs. Coil. Crankshaft posit...

    1996 Ford F-150 XLT 4WD LB

    -

    Maintenance & Repair

  • have good spark and fuel on my 96 f150 5.0 motor cranks but will not start 4 answers

    1996 Ford F-150 XLT Extended Cab LB

    -

    Maintenance & Repair

  • 92 f150 5.0 302 wont start 2 answers

    I have a 1992 with a 5.0 302 efi motor, just replaced the starter motor and the truck started running poorly, now it wont start at all, just turns over, has spark and starting fliud wont even give it ...

    1992 Ford F-150

    -

    Maintenance & Repair

  • got fuel and spark but wont run all does is wanna fire 18 answers

    85 f150 turns over and fires but wont run

    1985 Ford F-150

    -

    Maintenance & Repair

F-150

Looking for a Used F-150 in your area?

CarGurus has 195,111 nationwide F-150 listings starting at $290.

ZIP:

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 8,480
#2 dandyoun
dandyoun
Reputation 4,420
#3 tennisshoes
tennisshoes
Reputation 2,940
View All

Related Models For Sale

Used GMC Sierra 1500
783 Great Deals out of 68,701 listings starting at $1,800
Used Ford F-250
462 listings starting at $4,690
Used Ford Mustang
712 Great Deals out of 44,995 listings starting at $1,500
Used Ford Explorer
905 Great Deals out of 65,302 listings starting at $799
Used Ford Ranger
171 Great Deals out of 5,619 listings starting at $1,200

Used Cars For Sale

2018 Ford F-150 For Sale
716 listings starting at $29,070
2017 Ford F-150 For Sale
57 Great Deals out of 125,637 listings starting at $18,199
2016 Ford F-150 For Sale
109 Great Deals out of 9,637 listings starting at $14,950
2015 Ford F-150 For Sale
225 Great Deals out of 8,764 listings starting at $15,990
2014 Ford F-150 For Sale
354 Great Deals out of 12,473 listings starting at $9,900

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.