Carolina Broncos › 66-96 Ford Broncos › Bronco Tech v
motor issues please help!!

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Threaded Mode
motor issues please help!!
bigredbronco Offline
Junior Member
**
Posts: 23
Threads: 3
Joined: Dec 2012
Reputation: 0
#1
12-22-2012, 10:37 AM
She has no problem starting but once I put it in drive she stuggles and cuts off. cant even get more than 5 feet. just redid the timing but it didnt help
Find
Reply
chuzie Offline
Administrator
*******
Posts: 4,530
Threads: 131
Joined: Nov 2005
Reputation: 0
#2
12-22-2012, 10:42 AM
What year and type of motor and transmission
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.Confusedmokin:
Roads? Where we're going, we don't need roads.

[Image: sig2.jpg]
Website Find
Reply
bigredbronco Offline
Junior Member
**
Posts: 23
Threads: 3
Joined: Dec 2012
Reputation: 0
#3
12-22-2012, 10:50 AM
82 351. I think this is its 3rd motor and the transmission only has like 5k miles on it
Find
Reply
chuzie Offline
Administrator
*******
Posts: 4,530
Threads: 131
Joined: Nov 2005
Reputation: 0
#4
12-22-2012, 10:53 AM
So carb and C6?
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.Confusedmokin:
Roads? Where we're going, we don't need roads.

[Image: sig2.jpg]
Website Find
Reply
chuzie Offline
Administrator
*******
Posts: 4,530
Threads: 131
Joined: Nov 2005
Reputation: 0
#5
12-22-2012, 11:02 AM
What is your idle set at?
How long has this been going on?
Any recent changes other than the timing?
What did you set the timing to?
Can you keep it running with a little extra throttle?

I have additional question depending on EFI or carb and auto or manual trans response.
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.Confusedmokin:
Roads? Where we're going, we don't need roads.

[Image: sig2.jpg]
Website Find
Reply
bigredbronco Offline
Junior Member
**
Posts: 23
Threads: 3
Joined: Dec 2012
Reputation: 0
#6
12-22-2012, 11:07 AM
its got an eddlebrock carb. it idles at 800 and stays there it only happens when I try to go somewhere. it got this bad a couple days ago and i havent messed with it since. only thing i have done other than the timing is a new alt. i set the timing so the light matched up and no matter how much throttle i give it it sounds like its starving and dies. its an auto. I would have more info about it but ive only had it for a month and a half
Find
Reply
chuzie Offline
Administrator
*******
Posts: 4,530
Threads: 131
Joined: Nov 2005
Reputation: 0
#7
12-22-2012, 11:20 AM
So in park or neutral, you can punch the throttle and it runs fine? This issue only occurs when you place it in gear?

I am inclined to say you have a carb issue(s) perhaps vacuum kick, fast idle cam index, or fast idle RPM adjustment.
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.Confusedmokin:
Roads? Where we're going, we don't need roads.

[Image: sig2.jpg]
Website Find
Reply
bigredbronco Offline
Junior Member
**
Posts: 23
Threads: 3
Joined: Dec 2012
Reputation: 0
#8
12-22-2012, 11:22 AM
It happens when I do it in park/neutral but only sometimes. you think maybe my jets are clogged? Or could it be a filter
Find
Reply
chuzie Offline
Administrator
*******
Posts: 4,530
Threads: 131
Joined: Nov 2005
Reputation: 0
#9
12-22-2012, 11:26 AM
I bet the sometimes parts is dependent on engine temp. If you have a clogged jet or filter, it would stall out in Park/Neutral as well when you punch the throttle.

Check out a tech manual for procedures to set the aforementioned parameters.
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.Confusedmokin:
Roads? Where we're going, we don't need roads.

[Image: sig2.jpg]
Website Find
Reply
bigredbronco Offline
Junior Member
**
Posts: 23
Threads: 3
Joined: Dec 2012
Reputation: 0
#10
12-22-2012, 11:30 AM
shall do. I tried letting it heat up. when its cold it idles at 2k but all i have t do is just kick the gas and it settles at 800
Find
Reply


Possibly Related Threads…
Thread Author Replies Views Last Post
  Which Motor Should I Use? obxbronco 7 1,945 02-24-2016, 10:01 PM
Last Post: obxbronco
  motor help!!!!! broncatron 6 3,951 07-09-2013, 10:03 PM
Last Post: broncatron
  351 issues gumby93 18 6,386 09-29-2012, 07:30 PM
Last Post: blazinchuck
  Blown Motor. NateMob 22 7,000 11-02-2011, 09:26 PM
Last Post: NateMob
  Specs for 351W motor mount bolts? 73Bronc 11 3,049 09-27-2011, 11:36 PM
Last Post: 73Bronc
  Power Steering issues Crawdad 31 5,535 07-28-2011, 09:29 PM
Last Post: Crawdad
  Wheel hop issues JustJeff 2 1,711 01-25-2010, 01:53 AM
Last Post: JustJeff
  Swapped the motor in my Centurion and added a turbo! smooth 4 1,693 12-11-2009, 01:43 PM
Last Post: broncomania
  Transfer Case Issues Pup 2 2,442 08-28-2009, 06:59 PM
Last Post: Pup
  Motor Mount locations JayT 8 1,816 08-19-2009, 01:09 AM
Last Post: JayT

Forum Jump:


Users browsing this thread: 5 Guest(s)