Brandon Hovater
Well-Known Member
Would bad gas mess up my fuel injectors and how hard is it to replace them? Miss fire on 3,5 and 6. Thanks y'all!
bad fuel
- Thread starter Brandon Hovater
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Yardsale
Well-Known Member
If it were bad fuel affecting fuel injectors, I'd speculate that if it were bad enough to affect three fuel injectors, it'd probably affect all.
While bad fuel could cause a problem, I'm going with I doubt so in this case, especially considering that there is a fuel filter and it serves all of the injectors.
I assume this is related to your previous post (<a href="http://mysporttrac.com/shared/msgboard9e.asp?BOARDNAME=MSG&VIEW=1344256&REPLYCOUNT=26" target="_blank">Runs ruff 2/3 power and idles ruff too</a>). Might want to keep the info. together in the same thread, so that others can find the problem and solution together.
While bad fuel could cause a problem, I'm going with I doubt so in this case, especially considering that there is a fuel filter and it serves all of the injectors.
I assume this is related to your previous post (<a href="http://mysporttrac.com/shared/msgboard9e.asp?BOARDNAME=MSG&VIEW=1344256&REPLYCOUNT=26" target="_blank">Runs ruff 2/3 power and idles ruff too</a>). Might want to keep the info. together in the same thread, so that others can find the problem and solution together.
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- Joined
- Sep 21, 2003
- Messages
- 22,363
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- Location
- Long Island, NY
- What engine do you have?
- V8 engine
- What year is your Sport Trac?
- 2010
- What Generation is your Sport Trac?
- 2n Gen Owner
I would almost say Bad coil.
Todd Z
Todd Z
Brandon Hovater
Well-Known Member
I changed the coil and still same problem. New fuel filter, cleaned the MAF sensor too.
Steve Krusich
Well-Known Member
I had the same problem on a Gen 2, V8. I had installed Champion plugs. As soon as I re-installed new Motorcraft plugs the problem disappeared for good.
Yardsale
Well-Known Member
Lloyd Ledford
Member
double check your firing order--142536, if that's ok, compression test may point to something. worth a shot.
Lloyd Ledford
Member
double check your firing order--142536, if that's ok, compression test may point to something. worth a shot.
Gavin Allan
Well-Known Member
I would stop changing parts and start doing some diagnostic work to determine what the problem is. First of all, are there any codes stored?
Brandon Hovater
Well-Known Member
P0300,303,305,306,po1000.
Yardsale
Well-Known Member
We've already been down this route.
Richard Toms
Well-Known Member
Ford told me misfire on 5 and a little bit on 3. Suggested a new coil. Fine I said, put it on. Ran fine for a day. Then got the same code back. Replaced o2 sensors. Runs like a champ, no more problems. Get the o2 sensors checked.
