2000 ford Taurus se engine misefire and winning sound.
What is your question?
Engine is mise fireing on # 2 cylinder also running lean. Changed vacum hoses that were bad and pcv valve, plugs and wires. Had an extra coil pack so changed it out. While engine is running a loud sound begins quietly at first and then gets louder. Sounds like a bearing spinning and squeling. The sound goes away when you loosen the oil cap and allow more air to enter crank case. Car set up for a year it has 57,000 miles. What could cause the sound? I think what ever it is may be causeing mise fire.
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Check for rodent nest in air cleaner....engine is not breathing as pcv valve pulls vacuum.....the breather is in the air cleaner box and may be clogged,.... only Motorcraft has the right pcv valve for this engine! Other's just dont cut it!!
Thank you for quick response. I checked for rats nest not present.Have motorcraft pcv valve I used to be ford mechanic but this one has me stumpted. I will be tearing down intakes as lover intake is leaking oil at end gaskets. I wonder if it is possible that there is carbon build up in intake that is not alowing crankcase to breath. Not sure why only mise fire on # 2 cylinder as I said I am stumpted. It may be something ovious. Older man drove this car so possible he did not open it up much
Fire,, fuel,, vacuum,, compression!!! For whatever reason, your engine is not getting fresh crankcase air!! Check the entire 'breather' circuit....inclu valve cover,, not intake!
Thank you for quick response. I checked for rats nest not present.Have motorcraft pcv valve I used to be ford mechanic but this one has me stumpted. I will be tearing down intakes as lover intake is leaking oil at end gaskets. I wonder if it is possible that there is carbon build up in intake that is not alowing crankcase to breath. Not sure why only mise fire on # 2 cylinder as I said I am stumpted. It may be something ovious. Older man drove this car so possible he did not open it up much
Fire,, fuel,, vacuum,, compression!!! For whatever reason, your engine is not getting fresh crankcase air!! Check the entire 'breather' circuit....inclu valve cover,, not intake!