did a cap , rotor , coil, sparkplug wires, change to day and truck is still misfirin
#31
#32
Originally Posted by DJdemon6696
i have a visible broken vacuum hose.. i will take its pic.. and post it *** soon as my dad gets home with the Camara... wait a few minites
1. Go down to your autoparts store and get a bunch of 5/16" vacuum hose and connectors.
2. Replace ANY and ALL suspect vacuum lines.
3. Clear the codes from your CM. You truck may be functioning in Limp mode once it warms up. You can remove the negative terminal from your battery for 10 mins to clear codes.
4. Fire up the beast again.
I bet your idle issue goes away and the truck will run much better. No need to post any pictures Dj. Replace the lines that are obviously broken and test any other lines.
Good Luck
Mike
#33
#36
Try posting a wider image. Give a better idea of location. Looking at your other post I would say it goes to one of the vacuum ports on your "air control valve". Find your Thermactor pump and follow the 1" rubber hose until you come to the air control valve. mine has two vacuum lines to it I replaced one I think it was orange with rubber hose. You should be able to trace it's route with a little persistance.
#37
i think my missfire its not a vacuum problem but.. a electrical or fuel related problem... i fixed this hose... and now it idles smooth smooth see this post
https://www.ford-trucks.com/forums/6...yone-know.html
any ideas ?
https://www.ford-trucks.com/forums/6...yone-know.html
any ideas ?
#38
#39
misfire
Originally Posted by DJdemon6696
i think my missfire its not a vacuum problem but.. a electrical or fuel related problem... i fixed this hose... and now it idles smooth smooth see this post
https://www.ford-trucks.com/forums/6...yone-know.html
any ideas ?
https://www.ford-trucks.com/forums/6...yone-know.html
any ideas ?
Stupid question: How do you know it is misfiring?
#41
Originally Posted by DJdemon6696
no they dont.. they run all over the place :S... didnt have a chance to rout them yet..
Spend the time to do it right the first time and you won't second guess yourself later.
Good Luck
Mike
Thread
Thread Starter
Forum
Replies
Last Post
TexasMarkIII
1987 - 1996 F150 & Larger F-Series Trucks
2
04-22-2016 02:08 AM
DJdemon6696
1987 - 1996 F150 & Larger F-Series Trucks
9
08-01-2007 01:40 PM