bucking/missing

[powercat]

I have been having a problem with my Ex missing our bucking at around 60 mph. doesn't loose power, just bucks a little like when you're on rough pavement. Primarily when cold. Doesn't do it when its warmed up.

I've read threads about the IPR valve and the ICP sensor, but i don't really know what those are.

Injector problem? Read some threads where people use an oil treatment (rev-x or Archoil), don't know if that will help.

would appreciate any advice

[Tuscany]

Spool valves sticking in the injectors.

[powercat]

Ok, what should I do about it?

[Tuscany]

You can try Archoil 9100 oil aditive and see if it helps. If not your going to need new injectors or have yours rebuilt.

[205mx]

Hey man, I have some Archoil 9100 oil treatment. Full size 16oz. Just dump the whole thing in with a fresh oil change with Rotella T6 Synthetic. If that makes the truck run smooth again, you'll know it's Stiction. How long you can go running the treatment is indefinite... I think it's still open for debate. Some say its a fix. Generally most on here believe its just a band aid. I think it's a really heavy duty, super absorbent- stays on for a while or until you can afford stitches (new injectors) type of band aid.


Ps I have some for sale.
I'll sell it for $40. I'll pay shipping.
Call/text 205-617-2145

[powercat]

thanks for the info. I have already ordered the Archoil 9100, should be here today. wish it was warmer to do the oil change

[aclem16]

Sounds like an injector.I would take it to a Ford dealer and tell them its running rough when it's cold,and request they perform a Power Balance Test with the IDS during a cold start road test.It will identify which cylinder(injector) is causing the problem.I work at a Ford dealer and that's how we isolate the problem injector.Shops without this capability will recommend replacing all injectors.

[powercat]

Thanks, what is the IDS (sorry dumb question in know)

If i need to relace an injector, how big of a job is that?

[Korx]

Injectors aren't that hard to replace. All you have to do is pull off valve covers and oil rails. If you find a bad one you could get a new one ~$200 roughly or if you can afford some downtime you could send all 8 to Jesse Warren. He will go through and rework your all injectors and offer a 6 month warranty. ~$600 for all 8. He can either rework your stock ones or upgrade them to 155s or 175s.

Sent from my Autoguide iPhone app

[aclem16]

The IDS is the laptop based scantool used at Ford dealerships.If you need an injector replaced I recommend Ford Motorcraft injectors,I've seen nothing but problems arise from rebuilding injectors.I have 3 brand new Ford Motorcraft injectors still in the box if you are interested in buying them.They list for well over $200 a piece,but I will sell them for $125 each.