Ask Experts Questions for FREE Help !
Ask
    harleyman2008's Avatar
    harleyman2008 Posts: 3, Reputation: 1
    New Member
    		  
    #1

    Feb 15, 2011, 07:18 AM
    Why is my 1997 ford f-150 missfiring
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Feb 15, 2011, 07:33 AM

    This link should help:

    https://www.askmehelpdesk.com/cars-t...ml#post2028083
    harleyman2008's Avatar
    harleyman2008 Posts: 3, Reputation: 1
    New Member
    		  
    #3

    Feb 15, 2011, 07:41 AM
    I have a misfire on 1997 ford 4.6 in 5 and 8
    The spark plugs are black when I take them out not carbon its like oil
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #4

    Feb 15, 2011, 07:55 AM

    Check for spark in cylinders 5 and 8. Go over the entire secondary ignition system. Replace those items that really need replacing. Ensure the spark plug wires are not shorting out. It shouldn't be too hard to identify the real culprit.
    harleyman2008's Avatar
    harleyman2008 Posts: 3, Reputation: 1
    New Member
    		  
    #5

    Feb 15, 2011, 08:06 AM
    Comment on TxGreaseMonkey's post
    Everything is new
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #6

    Feb 15, 2011, 08:13 AM

    What plugs are you using?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #7

    Feb 15, 2011, 08:17 AM

    Check the positioning of the coil-on-plugs for cylinders 5 and 8--ensure they solidly contact the plugs. If no joy, replace the COPs.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Ford F-150 will not start [ 2 Answers ]

I was driving home the engine died. I thought it was because I ran out of gas so I switched tanks, and tried to start it, but it would not start. It started like it didn't have any power. I then tried to jump it, but that didn't work. It still start like it didn't have any power. I checked the...

1998 ford f-150 [ 1 Answers ]

I've been told my antifreeze leak is coming from my freeze out plugs. The claim is there is much, much, labor at replacing these plugs $$$$$$. I've done some work before and I'm fairly handy. Is this a job for me? Where to find directions ( Chilton Manual)?

Ford f 150 [ 6 Answers ]

I have a 1998 ford f150 and it is missing bad and I have replaced the spark plugs and the fuel filter and no check engine light is on

View more questions Search