Bronco Hard To Crank
Thread Starter
|
Junior User
Joined: Jun 2003
Posts: 73
Likes: 0
From: WILMINGTON,N.C.
Bronco Hard To Crank
I have a 1989 Bronco with a 302 in it and lately has been getting hard to start, you can hear the pump coming on when you turn the key but when it turns over it takes a few seconds for it to fire off. I guess what I'm trying to find out does this truck have 2 fuel pumps? It used to fire up just as soon as you bump the key, now once it cranks it runs great and has no problem starting the rest of the day until it sits over night...any ideas will be appreciated.
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
Bronco Hard To Crank
Yes, you have a low-pressure pump in the tank and a hi-pressure pump on the frame rail right below your feet. You can see them here. Put a fuel pressure gauge on the fuel rail and pull the codes.
Senior User
Joined: Jan 2003
Posts: 192
Likes: 0
From: Cary
Bronco Hard To Crank
Are you sure you're not driving my truck?
After changing the atlernator and battery in my '89 this week, my truck started doing the exact same thing. I was thinking that it was just that my new battery was getting sleepy over night and getting it's charge back while being driven.
It's interesting you ask about the fuel pump(s) because now I hear a slight buzzing whenever I let off the gas and I was thinking fuel pump as well.
I'd be interested in hearing what you find out.
After changing the atlernator and battery in my '89 this week, my truck started doing the exact same thing. I was thinking that it was just that my new battery was getting sleepy over night and getting it's charge back while being driven.
It's interesting you ask about the fuel pump(s) because now I hear a slight buzzing whenever I let off the gas and I was thinking fuel pump as well.
I'd be interested in hearing what you find out.
Fleet Mechanic
Joined: Aug 2001
Posts: 1,526
Likes: 0
From: Round Rock, TX
Bronco Hard To Crank
This is somewhat off-topic, but what year was it when they got away from the two pump setup? I always had trouble finding replacement intermediate fuel filters when I had the '86 Bronco.
Posting Guru
Joined: Sep 2002
Posts: 1,154
Likes: 0
Bronco Hard To Crank
I would say, that yor problem is a weak battery. This doesn't always mean that your battery is no good. It could judt be corroded connection (clean them with battery cleaner), broken battery cables, or a bad battery.
Also has your truck always done this. Or has it just started doing this recently?
Also has your truck always done this. Or has it just started doing this recently?
Senior User
Joined: Jan 2003
Posts: 192
Likes: 0
From: Cary
Bronco Hard To Crank
Not sure about Sailboat's truck, but mine has a new battery (tested again today and passed) as well as new battery cables.
I wonder if I somehow messed the starter up when trying to crank it with a dead battery.
Another thing I was thinking it might be...could I have run one of the fuel pumps dry or low with the alt was dead and now it's paying me back?
I wonder if I somehow messed the starter up when trying to crank it with a dead battery.
Another thing I was thinking it might be...could I have run one of the fuel pumps dry or low with the alt was dead and now it's paying me back?
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
Bronco Hard To Crank
Originally posted by bigric
what year was it when they got away from the two pump setup?
what year was it when they got away from the two pump setup?
Trending Topics
Thread Starter
|
Junior User
Joined: Jun 2003
Posts: 73
Likes: 0
From: WILMINGTON,N.C.
Bronco Hard To Crank
Follow up , my truck just started doing this out of the blue..when it does crank it almost seems it's just barley getting enough gas, then it catches and runs great from then on. It seems like it has to crank for a few seconds to get the fuel pressure up then it will get it and then run fine after that...crazy thing like I said just started doing this a week ago before that you could just bump the key and she'd crank right up. I can hear the pump coming on in the front so I'm wondering about the tank pump any ideas???
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Senior User
Joined: Jan 2003
Posts: 192
Likes: 0
From: Cary
Bronco Hard To Crank
I was talking with another buddy of mine about this today and he was thinking the easiest way to check for pressure would be to cycle the key to the on position several times before starting the truck. This should build pressure in the fuel rail.
Mine only acts up in the morning so I'll try it tomorrow and let you know. I can't get to a pressue gauge till tomorrow night.
Mine only acts up in the morning so I'll try it tomorrow and let you know. I can't get to a pressue gauge till tomorrow night.
Senior User
Joined: Jan 2003
Posts: 192
Likes: 0
From: Cary
Bronco Hard To Crank
Cycling my ignition switch about five times seemed to help a little this morning. It could tell a difference, but it still spun too much.
I'm going to change to the filter tonight and see where that gets me.
I'm going to change to the filter tonight and see where that gets me.
Thread
Thread Starter
Forum
Replies
Last Post
Torque1st
Explorer, Sport Trac, Mountaineer & Aviator
2
Jan 31, 2003 04:09 AM
