3.0L 2003 Ranger 3 cylinders Misfiring i need some help please

[red Ranger (Sarah)3.0L]

yes the plugs coil and wires are all changed and the old spark plugs looked good i will get some pics tomorrow

 

[pentode]

Ok.... Well that seems like most of the easy stuff ruled out. As was mentioned, cam synchro is possible, and or wiring to it. I guess wiring to the coil pack is possible too. I'll keep thinking about it but I'm sure someone else will jump in here soon.

 

[red Ranger (Sarah)3.0L]

right you think it could be gaskets like intake gasket and or the ecm ? if I cant figure it out by November I might just take it to a shop but I would like to find out why this is happening it's so bizarre

 

[pentode]

right you think it could be gaskets like intake gasket and or the ecm ? if I cant figure it out by November I might just take it to a shop but I would like to find out why this is happening it's so bizarre

It's possible it could be either of those things but I'd still tend to look for simpler solutions first. Are the misfires staying consistently on those 3 cylinders?
Have you checked all the wiring going to the injectors including the big bulk connector on the driver's side of the intake?

 

[Ranger850]

Could it possibly bethe timing is off?

 

[red Ranger (Sarah)3.0L]

It's possible it could be either of those things but I'd still tend to look for simpler solutions first. Are the misfires staying consistently on those 3 cylinders?
Have you checked all the wiring going to the injectors including the big bulk connector on the driver's side of the intake?

it sound like its a consistent misfire and i checked the wires but not the main connector also there is alot of debris around the injectors oh and i looked at the pcv valve and it seems loose like the grommet is worn or something but no oil around it but i will check the things you said again thank you

 

[red Ranger (Sarah)3.0L]

Could it possibly bethe timing is off?

i was thinking that, i mean it happened so suddenly but would timing only affect 3 cylinders? also i am not quite sure its a consistent misfire it sounds like it so it could very well be timing

 

[pentode]

it sound like its a consistent misfire and i checked the wires but not the main connector also there is alot of debris around the injectors oh and i looked at the pcv valve and it seems loose like the grommet is worn or something but no oil around it but i will check the things you said again thank you

Do you still have your old coil pack? If it were me I'd swap it back in and see if the misfires stay in the same place.

 

[red Ranger (Sarah)3.0L]

Do you still have your old coil pack? If it were me I'd swap it back in and see if the misfires stay in the same place.

hmm i do have my old coil pack i could try that but actually it is consistent because when i hard start it i can hear a consistent Gallup

 

[pentode]

hmm i do have my old coil pack i could try that but actually it is consistent because when i hard start it i can hear a consistent Gallup

OK but if it misfires on the exact same 3 cylinders that's a good data point.

 

[red Ranger (Sarah)3.0L]

OK but if it misfires on the exact same 3 cylinders that's a good data point.

Right I believe it’s just those 3 and like I said I did a compression test on number 1 and it was like 175 psi so I don’t think it’s compression

 

[bobbywalter]

is it losing coolant ?


spray it down in the dark

 

[red Ranger (Sarah)3.0L]

is it losing coolant ?


spray it down in the dark

I don’t believe it’s losing coolant so I am thinking not a head gasket also what will spraying it in the dark do is that something to do with spark?

 

[bobbywalter]

yes ....

spray it and check for arcing or if it dies

 

[red Ranger (Sarah)3.0L]

yes ....

spray it and check for arcing or if it dies

ok i will try that what would that mean if it did die or if there is sparks?