Guests - If You want access to member only forums on HSO. You will gain access only when you sign-in or Sign-Up on HotSpotOutdoors.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
boatfixer

2005 Ford Freestar check engine light

7 posts in this topic

Check engine light came on, runs rough. Mrs boatfixer takes it to a shop that has done work for me before and I trust them. Tech took a quick scan and said #2 was mis-firing. Said pretty sure it's an injector, probably not a coil. Question, Can't the fancy schmancy scanner tell the difference between an ignition and fuel problem? She is taking it back in tomorrow for a better look. What can I expect to pay for cleaning injectors?

Share this post


Link to post
Share on other sites

No!

The "fancy schmancy scanner" cannot tell you anything more than the cylinder that the misfire is on (P0302 - #2 misfire). Its up to the tech to put his/her brain to work to rule out all the possibilities except the one that is causing the problem. These possibilities can be, a vacuum leak, burnt valve, burnt piston, any other source of poor compression, ad spark plug, bad valve seals (oil foiling of the plug), week injector, bad coil, wiring between the PCM and affected coil/injector, PCM, worn cam, bad lifter, and the list goes on and on. It would be nice if there was a "fancy schmancy scanner" though!

If this is the 3.0 DOHC 24 valve engine it has coil over coils. One coil per cylinder. In my experience I have replaced way more coils than injectors on this engine. Unfortunately I think that the # 2 coil is under the plenum so it can not easily be moved to another cylinder to see if the misfire follows the coil or not. Typically you can use a spark tester and watch the spark fail as you crank it over (the other coils need to be disconnected so the vehicle will not start with the plenum off).

Share this post


Link to post
Share on other sites

Oops! I forgot to add it comes and goes. Not there all the time. And it's a 3.9l. My bad!

Share this post


Link to post
Share on other sites

Airjer is correct, I too would guess coil pack over injector. You can hook up tools te determine if it is a coil causing the miss, or an injector. But it is easier to swap part to a different cyl. and see if the miss moves to the other cyl

Share this post


Link to post
Share on other sites

I would also say C.O.P...

I would think intake leaking, before a failed inj...

Share this post


Link to post
Share on other sites

Whew!!! Dirty injectors. Runs great and Mrs. B is happy again.

Share this post


Link to post
Share on other sites

WOW that hurts!! I guess we all get a swing and a miss every once and a while. Glad to hear it was a simple and probably relatively inexpensive to repair!

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • Eaves would have been nice, better to the ducks than someone else. They beat us last go around but we were way better and Gibson won the game by himself.
    • Wow...Ducks get Eaves from Dallas for a conditional 2nd round pick...pretty cheap rental IMO..where were the Wild on this deal...oh ya we don't have a 2nd round pick 
    • Update:     Put some fresh gas in, sprayed the carb valve with some cleaner and cleaned the filter.  Also adjusted the idle speed up a bit. Runs great again!   Thanks for the advice and help everyone! 
    •   Nope...I think that is an original Bear55 Quote but Yogi Berra would be jealous if he were still alive.   Agree on the Blackhawks...when the season ends they will probably be the favorite to win the cup IMO so it will take an upset by any team to knock them off...would love for the Wild to be the ones to do so....it is getting very interesting as the trade deadline and playoffs time approach!
    • Out here (Virginia) our lakes are dirty and warm, and from what I understand, saugeyes thrive in those conditions. Our walleyes are all stocked since very few of our lakes have suitable spawning habitat and there is little to no natural reproduction.   Really looking forward to catching a saugeye just so I can cross it off my list!

    • Funny, that is the same face I get when I think of people voting for a reality tv star in as president. Worse yet he is some kind of billionaire, like the general public should ever trust one of those guys in public office.
    • More like Yogi the Bear but if I stole his quote my apologies.  Have to get that Chicago gorilla off our back, don't care if they win 4 of the next 5 cups, we just need one and I will be a happy camper.

      I'm not liking that they found some decent youth to play with Towes, we need to pounce before they fill in their gaps with depth and scoring again.
    • I am up to 27 in ND so far.  Waiting for more snow to melt.  Cold weather and deep snow makes the deer really group up out here and makes for easy shed hunting, but is really tough on the deer.  The 4th pic is one from some round bales that the deer were destroying earlier this year.   The biggest I find year to year is generally around that mid 60" range.  And I found that one (first pic) in early Janruary.  So hopes of finding a bigger one this year is low haha.
    • The only Merc I saw in Belize was on a parted out boat 75ft from water. Otherwise it was 70% Yammy's, 15% Honda's, 10% Suzzy's and a 5% hodgepodge of Evinrudes, Tohatsu, ect....... 
  • Our Sponsors