2002 Ford Mustang Engine Knocking

I FEEL SURE SOMEONE ELSE WILL JUMP IN WITH OTHER POSSIBILITIES (THEY USUALLY DO)

MAYBE THE KNOCKING IS THE MISFIRES SETTING OFF RAW FUEL IN THE EXHAUST SYSTEM

IS THE OLE CHECK ENGINE LIGHT ON?

HERE'S MY POSSIBILITY

MAYBE YOUR PROBLEM IS MUCH LIKE MY NIECE'S WAS

WELL, MY NIECE DRUG HER '03 6 CYL. MUSTANG IN HERE THE OTHER EVENING (WELL NOW, A FEW MONTHS AGO)--BEEN SKIPPING AND MOSTLY SHAKING FOR A WHILE.

-THERE WAS NO CHECK ENGINE LIGHT OR CODES

MY FAMILY FEMALE PHILOSOPHY:

DRIVE IT TILL IT WON'T GO NO MORE!

THEY SORTA FIGURED IT WAS THE PLUGS, BUT UPON POPPING THE HOOD WHILE IT WAS RUNNING, IT SORTA APPEARED TO BE HAVING A "LIGHT SHOW" GOING ON UNDER THERE.

WE REPLACED THE PLUGS (THEY HAD 'EM ON HAND), AS IT HAD BEEN TIME TO DO SO LONG AGO. THIS WAS NOT THE PROBLEM THOUGH

BUT THE LIGHT SHOW WAS THREE DIFFERENT PLUG WIRES HAD RUBBED "UNDERHOOD STUFF" UNTIL THEY WERE ARCING ON THE METAL COMPONENTS THEY TOUCHED

THE ALL TIME AWARD WINNER WAS THE ONE THAT WAS RUBBING ON THE BRAKE BOOSTER---IT WAS GNAWED A THIRD OF THE WAY THRU!

THIS TIME WE INSTALLED NEW--LIFETIME WARRANTY WIRES AND I PURCHASED A FEW FEET OF 3/8 FUEL LINE, I CUT THE FUEL LINE INTO VARIOUS LENGTHS--SPLIT THEM AND COVERED PORTIONS OF THE WIRES, EVERY PLACE A WIRE DID OR COULD RUB OR TOUCH ANYTHING.

THAT WAS THE FIX FOR HER!

HOPE THIS HELPS

THE MEDIC

Thank you this will help me a lot! I have new plugs coming in tomorrow or Friday and if that doesn't fix it I'll probably replace the could and wires as well I believe that's what you're saying fixed it pretty much replacing all the spark wirings

YES, THE NEW WIRES DID THE TRICK

PROTECTING THEM WITH THE SPLIT FUEL LINE SLEEVING, SHOULD KEEP IT FROM HAPPENING AGAIN! (I DON'T MEAN TO FULLY COVER THEM, JUST PLACES WHERE THEY RUB STUFF)

KEEP US POSTED ON PROGRESS

SHOULD THAT NOT HELP YOU OUT, FEEL FREE TO SUBMIT ANOTHER QUESTION, THIS TIME I'LL LET SOMEONE ELSE HAVE A SHOT AT IT

THE MEDIC

Ok so I got the spark plugs in and got the installed. Unfortunately one spark plug I can't change myself. The intake manifold is covering up the hole and I can't get the socket down there to remove it and I don't feel comfortable removing the manifold.
But the old plugs were pretty rough. On first start it fired up perfectly but I turned it off and restarted it and it still knocked. Then it fired up right after like it did before. So I don't know what to do now. I don't know how much a shop would charge me just to change that one plug or if theyd even do it for me.

So I'm not sure what to do now.

Would the converter shield banging cause it not to start though?

Could it be the o2 sensors causing it. I did some reading and a guy was having the same prob and it was the o2 sensors

Well the engine light is on cause of the o2 sensors being one of the codes it brings up when I did the service. But there are 13 total check engine codes that came up when I got it checked. So I'm thinking start clearing those codes and that will probably fix it. Also I got an oil change and when midas started it to move it, it misfired they suggested a tune up and said that would most likely fix it. Any thoughts in that idea?