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Bronco lacking in power and serious stutter

Posted: Thu Apr 08, 2010 8:46 pm
by greenmachine89
First I'll start at the beginning. Bought this 90 B2 and it came with loud rockers and a serious stutter or shake when idling. If you were to apply gas it would stumble at first but seem to rev up just fine. While driving it wants to fall on it's face and seems to have little to no power at all.

I changed the spark plugs, wires, cap rotor, fuel filter and air filter. Saw no signs of anything being bad. Ran rough still. Checked compression and all cylinders were equal. Adjusted valves and the tick from the rockers is gone but the stutter is still there. Checked the fuel pressure reg and found no fuel in the vac line haven't gotten to the pressure check yet. It seems like it is running on only 4 cylinders. Any input here would be great!

Re: Bronco lacking in power and serious stutter

Posted: Fri Apr 09, 2010 1:06 am
by Ranger Dave
squirt some gas in the intake see if it goes away. could be plugged injectors

Re: Bronco lacking in power and serious stutter

Posted: Fri Apr 09, 2010 12:06 pm
by greenmachine89
Ok I feel like and idiot! My old man had unplugged the 1st and 4th cylinder wires and thats what was wrong! Thats why it pays to double check other peoples work!