What is your question?
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What is your question?
For the last month I have been issues with my service engine soon light coming on, and when hooked up to the computer it says: Cylinder #2 misfire. I have changed the coil pack, and injector for that cylinder. Check all wires for anything broken or rubbing, and found nothing. Any ideas on what could be causing this issue?
1 Reply
Did you replace the Plug? Just because it looks ok does not mean it fires properly. Also check the compression just to be sure.. This is always the first place to start and always use the factory specified plugs, especially on these 4.7 Mercedes like engines.
Yes the spark plug was changed also. I am thinking it may be the camshaft position sensor which is a $23 part, we have run other tests such as water in the cylinder, and that is not happening.
If you did replace the plug and checked the compression, i'd replace the plug again, using a platinum. Stay away from bosch. I don't think it is the camshaft position sensor as I believe that either works or it doesn't, plus I believe it only tells the engine when to fire cylinder #1. If you have an EGR valve, check that and make sure it is functioning (not stuck open) as that can cause a misfire. I have a 2002 4.7L and it doesn't have an EGR valve. Took me a while to figure that one out...had to call the dealer! Start with the basics again and go from there. I did a complete tune up on my durango and it ran great for about 2 weeks, then started missing. Couldn't figure it out. Took it to a shop. $120 later said they needed another $240 to figure it out so I left that shop. Still no clue. Took it to another shop and $50 later and a new spark plug in the missing cylinder and it runs perfect! I laughed at myself for that one!! Good Luck