Running Rough - HELP ASAP
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Elder User
Joined: May 2003
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From: Orlando, FL
Running Rough - HELP ASAP
1990 Bronco 5.0
Last night did an oil/filter change, plugs (Autolight copper), wires (Accel), Cap and Rotar (GP Sorenson). Checked timing with spout connector removed - 10*btdc.
Before all of this the engine was running rough at idle, as gas was applied it ran better but it was still noticable when accelerating hard.
After all this it ran great until I drove and once I stopped the rough idle started again.
Thinking that now I should check 1) Vacumn, 2) Compression.
Last night did an oil/filter change, plugs (Autolight copper), wires (Accel), Cap and Rotar (GP Sorenson). Checked timing with spout connector removed - 10*btdc.
Before all of this the engine was running rough at idle, as gas was applied it ran better but it was still noticable when accelerating hard.
After all this it ran great until I drove and once I stopped the rough idle started again.
Thinking that now I should check 1) Vacumn, 2) Compression.
Hotshot
Joined: Jul 2002
Posts: 14,285
Likes: 12
From: Bend,OR
i have also not had much luck running accel wires. not sure why but for some reason i had this very issue. changed the plug wires and got better. also double check the pluge wire firing order, its so easy to swap wires onto the wrong plugs. also make sure they are not touching especially 7 & 8 wires.
have you pulled codes? might bump timing up to 12*btdc with spout removed. might change fuel filter as well.
have you pulled codes? might bump timing up to 12*btdc with spout removed. might change fuel filter as well.
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Elder User
Joined: May 2003
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From: Orlando, FL
I am not sure what brand the old wires were, but I would think that any kind of new wires would be better than ones with burns on the insulation from heat and shorting. Also, I am confidant that the wires are hooked up right/not touching, I made sure to triple check that last night because I went through that fiasco before.
I am waiting to get an extra hand to change the timing, I don't want to loosen the bolt enough to turn the distrubutor and then let go to crank the engine and have it spin.
I never thought of the fuel filter, it has been two to three years since mine has been changed.
I am waiting to get an extra hand to change the timing, I don't want to loosen the bolt enough to turn the distrubutor and then let go to crank the engine and have it spin.
I never thought of the fuel filter, it has been two to three years since mine has been changed.
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Elder User
Joined: May 2003
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From: Orlando, FL
No, I didn't have time last night to work on it. Tonight I am going to change the fuel filter, and time it to 12* btdc. If that doen't work I will have to wait until Monday to do anything else. Going out of town.
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Originally Posted by buckeyebronco
1990 Bronco 5.0
Last night did an oil/filter change, plugs (Autolight copper), wires (Accel), Cap and Rotar (GP Sorenson). Checked timing with spout connector removed - 10*btdc.
Before all of this the engine was running rough at idle, as gas was applied it ran better but it was still noticable when accelerating hard.
After all this it ran great until I drove and once I stopped the rough idle started again.
Thinking that now I should check 1) Vacumn, 2) Compression.
Last night did an oil/filter change, plugs (Autolight copper), wires (Accel), Cap and Rotar (GP Sorenson). Checked timing with spout connector removed - 10*btdc.
Before all of this the engine was running rough at idle, as gas was applied it ran better but it was still noticable when accelerating hard.
After all this it ran great until I drove and once I stopped the rough idle started again.
Thinking that now I should check 1) Vacumn, 2) Compression.
http://www.performancedistributors.com/84f150.htm
The above also work on Broncos.
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Thread Starter
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Elder User
Joined: May 2003
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From: Orlando, FL
Update: Got the fuel filter changed, and checked the computer of codes. Ran a KOEO check and got 11, which is "system passed" correct? And a 31 from continuous memory. I looked at the list of codes from ford fuel injection dot com but I have no idea what that code means. Can anybody shead any light on the situation?
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