1986 351w idle problem
Thread Starter
|
New User
Joined: Feb 2006
Posts: 4
Likes: 0
1986 351w idle problem
I have a problem with this engine idling I just installed a rebuilt motor in 2 days ago.. it is the H.O engine. we had the engine idling half decent and ran good I just drove it 300 miles and now i cant take my foot off the gas when starting or coming to a stop.. runs beautiful on the highway. does anyone have a suggestion to what could be causing this. I have tried adjusting the idle and the timing is to what i believe to be correct. any help would be appreciated.
Post Fiend
Joined: Jan 2004
Posts: 6,610
Likes: 2
From: Northwest, Arkansas
Welcome to FTE and all it's glory 
. You are now part of the largest Ford Community on the net. Glad you chose to register and am sure your stay will be beneficial. Have a good time and see you on the Forums. 
Besides all the great Tech forums here we also have local state chapters where people from the same area can get together for meets, parties, or just carry on general conversation. Take the time to check out the chapter in your local area.
To make it easier to navigate please read the Forum Guidelines.
. You are now part of the largest Ford Community on the net. Glad you chose to register and am sure your stay will be beneficial. Have a good time and see you on the Forums. Besides all the great Tech forums here we also have local state chapters where people from the same area can get together for meets, parties, or just carry on general conversation. Take the time to check out the chapter in your local area.
To make it easier to navigate please read the Forum Guidelines.
Save the old ones
Joined: Dec 2002
Posts: 666
Likes: 4
From: Boyne Mich
Does it matter if the engine is cold or hot? I am assumimg it is a Carb engine?
I would check to see if the choke is the Problem. Lean / rich I am not sure.
also check for Open Vacuum leaks. Power brakes or emissions vacuum lines off ect... That will usually cause the symptoms. You can check for Vac leaks with a can of WD-40, Safer than other things I heard of.
Be sure to check the intake manifold gaskets as well.
I by no means am any expert due to my '84 351w poping and bucking under load (but it idles great). Just a few things to look at.
I would check to see if the choke is the Problem. Lean / rich I am not sure.
also check for Open Vacuum leaks. Power brakes or emissions vacuum lines off ect... That will usually cause the symptoms. You can check for Vac leaks with a can of WD-40, Safer than other things I heard of.
Be sure to check the intake manifold gaskets as well.
I by no means am any expert due to my '84 351w poping and bucking under load (but it idles great). Just a few things to look at.
Thread Starter
|
New User
Joined: Feb 2006
Posts: 4
Likes: 0
thanks for the thoughts I will check those out i know that the choke is not the problem neither is the intake leaking but i will check the vacuum.. and no it does not matter if the engine is hot or cold it does it all the time
