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jus4kix03MM
02-23-2013, 02:27 AM
The motor on the MM started a knocking sound the other day. It has 99354 miles on it. Ive done the regular maintenance on schedule all the time for the past 4 years of ownership. Am I making too big of an assumption that the motor is on its way out? Could it be something else?:shake:
whitey
02-23-2013, 03:30 AM
Could it be bad gas? Run some techron through it, and fill her up with about 5 gal of 93oct
Blackened300a
02-23-2013, 04:58 AM
The motor on the MM started a knocking sound the other day. It has 99354 miles on it. Ive done the regular maintenance on schedule all the time for the past 4 years of ownership. Am I making too big of an assumption that the motor is on its way out? Could it be something else?:shake:

Running rough? Maybe a tensioner collapsed and you are hearing the timing chain slapping. Have you isolated it to what part of the engine it's coming from?
jus4kix03MM
02-23-2013, 10:36 AM
Could it be bad gas? Run some techron through it, and fill her up with about 5 gal of 93octill try that. Thanks


Running rough? Maybe a tensioner collapsed and you are hearing the timing chain slapping. Have you isolated it to what part of the engine it's coming from?
Theres no loss of power. She still runs smooth. I just replaced the tensioner a month ago. Sounds like the knocking is coming from the bottom of the motor. Possible bad cat? Hate to admit it but i pretty much baby this car and i very rarely drive it hard as its my DD and being without it will be an extreme hardship.
RF Overlord
02-23-2013, 11:11 AM
Mary's car has had a soft "nuk-nuk-nuk" sound off and on for the last 6 years and 80,000 miles (has 165,xxx now). I thought rod-knock at first, too, but it's never gotten any worse. Seems to happen randomly...
jus4kix03MM
02-23-2013, 12:06 PM
Mary's car has had a soft "nuk-nuk-nuk" sound off and on for the last 6 years and 80,000 miles (has 165,xxx now). I thought rod-knock at first, too, but it's never gotten any worse. Seems to happen randomly...

Unfortunately. Mine has been getting louder over the days.
nh muscle
02-23-2013, 12:14 PM
Start saving your $$$$ I blew 3 rod bearings at once!!! Then we did aluminator trillogy stainless works exhaust . Only .$$18000 but its now 550 up!!
lji372
02-23-2013, 12:31 PM
sorry to hear.
i suggest take it to your trusted mechanic. can't tell you how much time and money i've wasted trying to decipher and do word of mouth trouble shooting.

there's a reason i do what i do and they do what they do.

although if it wasn't my daily driver i would throw in some 93 and pounce on it a few times. i kind of have the hit it with a hammer mentality. make sure you do it in the direction of your mechanic, you'll save a few bucks on the tow :)
Shaijack
02-23-2013, 05:46 PM
Sell it ot me or Darren.
L.Mark
02-24-2013, 12:41 AM
Speaking of gas...how bad is it if you don't run 93 oct in the car but use the nexrt grade down? Speaking hypothetically of course...:rolleyes:
jus4kix03MM
02-24-2013, 07:49 AM
Speaking of gas...how bad is it if you don't run 93 oct in the car but use the nexrt grade down? Speaking hypothetically of course...:rolleyes:
I have a tune for 91 oct. Mine has always ran great up until a few days ago.
SC Cheesehead
02-24-2013, 08:38 AM
Speaking of gas...how bad is it if you don't run 93 oct in the car but use the nexrt grade down? Speaking hypothetically of course...:rolleyes:

You can re-tune for lower octane fuel, but running it without retarding the spark can be risky.

4V motor + spark knock = BOOM.
jus4kix03MM
03-05-2013, 12:32 AM
Well. Looks like it is a rod knocking. What to do, what to do? No moneys to fix this problem= A VERY SAD MARAUDER OWNER. :alone:
Chi Stallion
03-05-2013, 03:20 AM
Well. Looks like it is a rod knocking. What to do, what to do? No moneys to fix this problem= A VERY SAD MARAUDER OWNER. :alone: Just be patient man don't give up on the MM and try to get another DD while the MM sits for a heart transplant.
babbage
03-05-2013, 07:25 AM
Well. Looks like it is a rod knocking. What to do, what to do? No moneys to fix this problem= A VERY SAD MARAUDER OWNER. :alone:


By any chance was the oil level low when you checked it?
2,4shofast
03-05-2013, 07:39 AM
Damn that isnt good news, sorry to hear about that bro! Hope you come up with a solution. :beer:
Mamba
03-05-2013, 07:48 AM
i know the feeling mines got a rod knock in Nov 2012 spun a few rod bearings at 81,xxx smh but i didnt give up my baby is in the shop now looking to resurface soon!
jus4kix03MM
03-05-2013, 08:10 AM
By any chance was the oil level low when you checked it?

At my last oil change the oil was low. The knock started a few days after the last oil change.
Bruce Wayne
03-05-2013, 10:10 PM
more and more I see these engines begin to knock at around 100,000 or before, starts with a rattle at start-up then gets worse. Ask me how I know
rocky
03-05-2013, 10:44 PM
Speaking of gas...how bad is it if you don't run 93 oct in the car but use the nexrt grade down? Speaking hypothetically of course...:rolleyes:

I ran 88 octane religiously for about 40k, started to do mods and now do 91(no 93 close to me)
I'm at 147ish and she is running fine.
A friend with an expedition just replaced his motor because of a knock only to find out later and way too late that it was a bad timing chain tensioner. Not saying that's your problem but it's well worth the $$$ to spend a few extra bucks on a good ford dealer or credible shop diagnosis. Good luck with it.


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