NO START 85' BRONCO

Asked by Apr 23, 2016 at 02:28 AM about the 1985 Ford Bronco XLT 4WD

Question type: Maintenance & Repair

I have an 85 Bronco with a 351 windsor. This truck needs some major love but
i think i got it at a good deal for 500 bucks. I wanted a project truck to start
learning and I got one, I don't know much about cars/trucks but I am a Jet
engine mechanic, so I am mechanically inclined but just not too familiar with
the nomenclature, so bare with me please lol. Okay so heres my issue. First off
before I start going into it I had to bypass the key in the steering column and I
am testing my ignition by jumping the Batt with the starter switch/solenoid on
the fender. When I did this the first time I heard a loud whine, so it sounded like
the starter was spinning, but the flywheel was not being engaged. I removed
the starter and tried again to verify starter was extending and spinning and it
was. I also checked Starter on a bench at O'reillys and it checked good. The
wear mark on the starters teeth from the flywheel looked pretty dead center as
well. The flywheel also has metal flakes around its teeth. I am leaning towards
the Flywheel needing to be replaced but before i do i am going to check the
battery output with a multimeter. I also manually rotated the cam shaft? (told
you I'm new to this) my buddy showed me how to do it with a rachet, and it
rotates smooth with no binding. I tried starting in Neutral as well, not sure if
thats a capable troubleshooting step but I thought maybe the transmission
was preventing the flywheel from turning, maybe I am just retarded haha. What
do YOU guys think is the culprit?

1). Newer Battery, but still going to check voltage output.

2). New Starter Solenoid on fender.

3) New Starter.

4) Grounding Wire looks good.

3 Answers

96,995

Ok you stated flywheel so I assume it has a standard tranny, sometimes the ring gear on the flywheel will crack and then all it does it spin around on the flywheel, so to verify this you can pull of the starter or inspection cover on the trans and see if you can move just the ring gear with a large screwdriver or small pry bar, I'm thinking it has already moved away from the starter drive si it is not engaging the drive. But then you stated you tried it in neutral so now I'm not sure what trans you actually have, cause if you have an automatic it is then called a flex plate, and those can and sometimes do break, there again removing the starter and inspection cover if it is broke you can move it in and out. So you rotated the crankshaft with a breaker bar so you know the engine is not seized. So far, I am in agreement with you as far as something amiss with the ring gear or flex plate depending on what tranny you have.

2 of 2 people found this helpful.

Thanks I'm going to try removing inspection cover on the tranny. Told you my nomenclature was bad haha. I have an automatic transmission. I'll let ya know how it goes. Also I found that according to the schematics the past owner looks like they hooked up the starter relay wrong, I tried the right way jumped it and it wouldn't turn off when I jumped it. Lol. Battery is a little low at 12.38 voltage but not by much.

96,995

Full battery charge should be 13.2 volts. See pic for wiring.

Your Answer

Add photo

Related Questions

  • NO START 85' BRONCO 3 answers

    I have an 85 Bronco with a 351 windsor. This truck needs some major love but i think i got it at a good deal for 500 bucks. I wanted a project truck to start learning and I got one, I don't know muc...

    1985 Ford Bronco XLT 4WD

    -

    Maintenance & Repair

  • 1994 Bronco won't start 2 answers

    Having an interesting starting problem with my Bronco. 5.8 engine. Turn key to accessory, fuel pump charges, everything works. Turn key to start, it does nothing. No clicks, no turning over....

    1994 Ford Bronco XL 4WD

    -

    Maintenance & Repair

  • 85 bronco 4.9 L6 carburated cuyys out on the highway 2 answers

    85 bronco 4.9 carbureted 6 engine turns off for a few seconds, then turns back on for few minutes then turns off again for few seconds. when this happens clunking of the drive train happens. this only...

    1985 Ford Bronco XLT 4WD

    -

    Maintenance & Repair

  • 89 Ford Bronco ii wont start? 1 answer

    The car just died on me on the way home, towed it the rest of the way and tried to start it again, would barley turn over. The more i tried it the less it would crank, now when I try to start it the...

    1989 Ford Bronco XLT 4WD

    -

    Maintenance & Repair

  • 86 bronco II no spark 1 answer

    I left a friends at night had all power and lights got home went out next morning to start and battery was dead put a new battery in then wasn't getting spark replaced. Ingnition module, sylinoid ...

    1986 Ford Bronco XLT 4WD

    -

    Maintenance & Repair

Bronco

Looking for a Used Bronco in your area?

CarGurus has 197 nationwide Bronco listings and the tools to find you a great deal.

ZIP:

Search Ford Bronco Questions

Ford Bronco Experts

#1 tennisshoes
tennisshoes
Reputation 420
#2 Js08016
Js08016
Reputation 170
#2 Clayton Cameron
Clayton Cameron
Reputation 170
View All

Related Models For Sale

Used Ford F-150
2,121 Great Deals out of 193,348 listings starting at $290
Used Ford Mustang
683 Great Deals out of 44,710 listings starting at $1,500
Used Chevrolet Blazer
1,168 listings starting at $1,495
Used Ford F-250
465 listings starting at $4,390
Used Ford Ranger
168 Great Deals out of 5,599 listings starting at $900
Used Toyota 4Runner
228 Great Deals out of 19,349 listings starting at $1,500
Used Ford F-100
164 listings

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.