countrymudboy
New member
So been going rounds with my project for about a yr minus winter. It starts up but runs rough really rough. It has no low end power and pops and back fires upon acceleration. Also and here is the key i believe the intake (to air filter) sounds like a jet airplain. Way to strong of a vacumm i believe.
Truck is 1989 Ford Bronco Eddie B edition. 5.0 engine.
Here is what's been done....
when I first got it I replaced all plugs wires distribtor cap rotor.
truck had been sittiling for supposably a year inow believe it was longer... so next I drained the tank
replaced fuel filter and then fuel pressure regulator.
that got it to the point of running but about like it is now verry rough surging idle when first started and some back firing.
Constantly recheck for vacumm leaks..
checked timing and ran even worse at 8BTD Where the haynes says to put it. (I know may guys on here set to 10 I have been playing with that)
Next I replaced the MAP sensor. didnt' do much
next couldn't find a leak at hoses but with carb cleaner discovered upper intake leak
replaced upper intake gasket and cleaned that and throttle body.
helped but didnt' cure
since i have replaced IAC EGR EGR possition sensor. and just yesterday replaced distibtor thinking it was the guts of that causing misfire/ timing issues. still to no avail.
Bronco still has same symptoms and runs worse than it was before winter. I can't seem to find any more vacumm leaks so running out of ideas.
when i tried to pull codes again all i got was 33 that's why i replaced the possition sensor day before distributor. that was the koeo test can't seem to find the right link for the koer test and can't remember the pedal steering combo to get it started right so only did enginge off test.
Have not check codes yet since doing distributor and egr possition sensor but wasn't any change running wise
Lost on direction now sooo ANY ideas PLEASE share.
Truck is 1989 Ford Bronco Eddie B edition. 5.0 engine.
Here is what's been done....
when I first got it I replaced all plugs wires distribtor cap rotor.
truck had been sittiling for supposably a year inow believe it was longer... so next I drained the tank
replaced fuel filter and then fuel pressure regulator.
that got it to the point of running but about like it is now verry rough surging idle when first started and some back firing.
Constantly recheck for vacumm leaks..
checked timing and ran even worse at 8BTD Where the haynes says to put it. (I know may guys on here set to 10 I have been playing with that)
Next I replaced the MAP sensor. didnt' do much
next couldn't find a leak at hoses but with carb cleaner discovered upper intake leak
replaced upper intake gasket and cleaned that and throttle body.
helped but didnt' cure
since i have replaced IAC EGR EGR possition sensor. and just yesterday replaced distibtor thinking it was the guts of that causing misfire/ timing issues. still to no avail.
Bronco still has same symptoms and runs worse than it was before winter. I can't seem to find any more vacumm leaks so running out of ideas.
when i tried to pull codes again all i got was 33 that's why i replaced the possition sensor day before distributor. that was the koeo test can't seem to find the right link for the koer test and can't remember the pedal steering combo to get it started right so only did enginge off test.
Have not check codes yet since doing distributor and egr possition sensor but wasn't any change running wise
Lost on direction now sooo ANY ideas PLEASE share.