Bad sound from engine

[cobrakid]

Ok so on the way home from work the car started to make a very bad noise all fluids checked seems to run fine drove 6 miles home

http://youtu.be/CYjzYMT9flc




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[RacerX]

Didn't you say in the video: "exhaust leak"? Or did I imagine that and the smoke coming up from #1/2 cylinders? :D An exhaust leak can sound like a bad bearing VERY easily. Is it worse when the engine is cold and gets a bit quieter as the engine warms up? Rev it up, does it sound better or worse?

[cobrakid]

It's not it is steam


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[cobrakid]

Didn't you say in the video: "exhaust leak"? Or did I imagine that and the smoke coming up from #1/2 cylinders? :D An exhaust leak can sound like a bad bearing VERY easily. Is it worse when the engine is cold and gets a bit quieter as the engine warms up? Rev it up, does it sound better or worse?

For the most part it's the same



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[Bluerauder]

Sounds like a diesel engine. The engine compartment looks awfully wet. Beaded water on the battery, coolant reservoir, radiator shroud, and front cover. Hoses and tubes look wet too. Steam coming from the valve covers and block. How did this happen? Don't think I have ever seen my under hood area that wet even when running 300 miles in heavy rains. I am thinking that you have moisture in some of the connectors and maybe under the coil covers, MAF and air box. Low air flow or high moisture levels in that air ???

[tbone]

Sounds like maybe you lost a valve or two.

[cobrakid]

Sounds like a diesel engine. The engine compartment looks awfully wet. Beaded water on the battery, coolant reservoir, radiator shroud, and front cover. Hoses and tubes look wet too. Steam coming from the valve covers and block. How did this happen? Don't think I have ever seen my under hood area that wet even when running 300 miles in heavy rains. I am thinking that you have moisture in some of the connectors and maybe under the coil covers, MAF and air box. Low air flow or high moisture levels in that air ???

Raining for 3 days and 100% humidity and frost on motor



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[RF Overlord]

Try running the motor without the FEAD belt to see if the sound is internal or external. Use a mechanic's stethoscope to try to localise the sound.

[MustangMoser]

Sounds like a timing guide or tensioner to me. How many miles?

[8UWITH6]

Pull the serpentine belt off just to eliminate the accessories. Although I am afraid that is not a noise from an accessory. Good luck with your findings and post back.

[RubberCtyRauder]

sounds like valve train clatter as it is pretty rythmic with engine idle...Not sure about these cars so much, but I have seen before water pump impellers rotted off and clunk around, but they tend to overheat since the impeller isn't pushing the water thru.

[cobrakid]

Try running the motor without the FEAD belt to see if the sound is internal or external. Use a mechanic's stethoscope to try to localise the sound.


What is the FEAD belt we've taken the serpentine belt off and it sounds louder without the alternator and other stuff running


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[cobrakid]

Sounds like a timing guide or tensioner to me. How many miles?


137,000


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[8UWITH6]

Ugh, sorry man.

[RubberCtyRauder]

FEAD = Front Engine Accessory Drive..the serpentine belt

[cobrakid]

Pull the serpentine belt off just to eliminate the accessories. Although I am afraid that is not a noise from an accessory. Good luck with your findings and post back.

We have and it is inside it comes from the left side



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[8UWITH6]

Did you do any spirited driving on your way home when the noise started?

[nh muscle]

Sounds like an. Eaton Swap is coming!!

[maineiac]

No spirited driving 80 on the hiway

[maineiac]

Sounds like an. Eaton Swap is coming!!
Could be but if boost gets you ,you know then what does bored stoked and boosted get you?

[Mr. Man]

Sounds like an. Eaton Swap is coming!!
Sounds more like a built Terminator with a blower on that, is coming. :P

[maineiac]

Sounds more like a built Terminator with a blower on that, is coming. :P

Or a parts car or project for someone else.

[MustangMoser]

137,000


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Pull the front cover off, it really sounds like guide or tensioner, a little young for that, but that's my guess being as you were able to continue driving. It didn't look like the engine was misfiring and you said nothing of a check engine light.

[WPG_Merc]

is the noise from the top or bottom of the front motor,If the rattle is in the in the middle it could be the guide or tensioner as MustangMoser (http://www.mercurymarauder.net/forums/member.php?u=18048) said but A bad valve would sound worse then that when you an still drive it.
I had the same noise & one lose chain,

[maineiac]

is the noise from the top or bottom of the front motor,If the rattle is in the in the middle it could be the guide or tensioner as MustangMoser (http://www.mercurymarauder.net/forums/member.php?u=18048) said but A bad valve would sound worse then that when you an still drive it.
I had the same noise & one lose chain,

Middle to top ,only left side of motor.I hope its only tesioner or guide that would be easiest and cheapest,how much of a pain in the azz is it to get the timing chain cover off?

[MustangMoser]

Middle to top ,only left side of motor.I hope its only tesioner or guide that would be easiest and cheapest,how much of a pain in the azz is it to get the timing chain cover off?

Not too bad if you have mechanical knowledge. The hardeset part is getting the accessories off.

[WPG_Merc]

If it is a guide or tensioner,It is best to replace all chains/guides/tensioners when the car has 137,000 mile when it's all a part.
Mine had 110,000 kms when I replaced them but I also got the cams done at the same time & it was a lot of surgery & not cheap but worth it.
Ether way the motor will have come a part or a chain cold break under stress.

[maineiac]

Looking into the guides and tensioners is next hopefuly i can get it to the shop this week.

[Bruce Wayne]

be sure to check the belt tensioner pulley first. these can make an awful racket!

[maineiac]

be sure to check the belt tensioner pulley first. these can make an awful racket!
Took the belt off and without it the accesseries it was louder.

[Ms. Denmark]

When is Cobrakid getting his own Marauder? :coolman:

[maineiac]

When is Cobrakid getting his own Marauder? :coolman:
He may be gettin this one soon, real soon. no really its his mother holding him back,wants him to drive what she wants not what he wants.I cant help him with her.

[vegasmarauder]

Noise sounds more like tensioners then rods.

If you don't have a machanic's stethescope use a 3 foot piece of heater hose. Rod knock will be noticably louder when touching the oil pan. Guides and tensioners when touching the front cover. on the cover you can almost get right over the bad section.

Also, it the check engine light on? Valve system problems will almost always throw a light, but rod and tensioner issues will not.

Also, try unplugging each of the injectors on that side while engine is running and the noise will greatly reduce or go away if it is rod or valver related but will not change if tensioners. Unplugging the injectors will thow the light by way, so do that last or if you have a way to clear the light afterward.

A friends 97 Lincoln had a similar sound and CEL light on and a noticable miss. The car had thrown a ricker arm off after a full throttle acceleration. Car had 199K miles on it. Pulled the vavale cover and put all new rocker arms on it, ran great after that.

I think it may be more likely timing chain issues than valva issues. Good luck.

By the way, most dealers don't fix or really diagnose engines. If its noissy and has a lot of miles on it they will just tell you it needs a new engine. May not..

[maineiac]

Found broken chain guide and bad tensioner on top chain ,parts arrive tomorrow hope that fixes it.

[GODFATHER]

good luck keep us posted ;)

[maineiac]

Well i now know why my tensioner went,replaced tensioner and guide,a little better but not right,very low oil pressure in head on pass side plenty of pressure everywhere else,waht to do next.

[massacre]

Broken tensioner piece stuck in oil passage somewhere restricting flow?
-just a guess

[maineiac]

Going to check the oil resticter tube under the cam cap tomorrow see if thats it ,i can only hope.Dont really want to take the heads off if that isn't it.

[maineiac]

Fixed the beast,took off head and pumped oil back throuh head at pressure restricter tube under back lower cam cap ,put the old girl back together and no more noise including the marble in the coffee can at startup i have had since 97000 miles yee haa,see you all in looseville.

[Bruce Wayne]

What !!!? you are the man ! Congrats on that fix, can you give a little more info on what you did please

[frankdc]

WIsh I knew. I have a rebuilt engine, poorly done, and taken back 2x. I may have to sell the car. I may have to replace or fix the rebuilt. Tired of the problems.