engine start rattling

[ddog1216]

2003 marauder 125xxx miles start car and something in the motor rattles for about a second then goes away, turn off then turn on again starts fine and only when cold start it happens any idea what it can be

[fastblackmerc]

2003 marauder 125xxx miles start car and something in the motor rattles for about a second then goes away, turn off then turn on again starts fine and only when cold start it happens any idea what it can be

Could be the timing chain tensioners. They bleed down after sitting for a while, then pump up once there is oil pressure. Nothing to worry about.

[RacerX]

Have someone else start the car cold while you've got your ear in the engine bay to try and pin down where it's coming from. It could be tensioners, lash adjusters, etc. It may or may not be much to worry about. Obviously it goes away with oil pressure.

[RF Overlord]

What kind of oil filter are you using? Many people report cold start-up noises that are cured by using the factory-recommended Motorcraft FL820S.

[fastblackmerc]

What kind of oil filter are you using? Many people report cold start-up noises that are cured by using the factory-recommended Motorcraft FL820S.

Good catch RF!

[RacerX]

This is the same car that stalls when you let off the gas I see... Any other issues?

[ddog1216]

No just rattles on cold start and stalls when accelerate then let off

[fastblackmerc]

No just rattles on cold start and stalls when accelerate then let off

What oil filter is installed?

[GetMeMyStogie]

Does it sound like this (http://www.mercurymarauder.net/forums/showthread.php?t=53702&highlight=starter) or this (http://mercurymarauder.net/forums/showthread.php?t=56534)?

[ddog1216]

K&n oil filter

[sflrainmaker01]

K&n oil filter

get a Motorcraft one ASAP!

[RF Overlord]

K&N oil filters are no longer made in America. K&N transferred production from Champion Laboratories when Champ was purchased by FRAM and they are now made in Korea. According to Jay Buckley at FRAM, quality has fallen off as well.

While it's still a decent filter, it's way over-priced. The Motorcraft FL820S is a much better value for money, as is the FRAM Ultra.

[Vortech347]

Could likely be tensioners. My engine sounded like it had gravel in the timing chain cover until I put new units in. Now its quiet and smooth as buttah.

[ChiTownMaraud3r]

Check for exhaust leaks, and for loose spark plugs.

[jimbok1951]

What kind of oil filter are you using? Many people report cold start-up noises that are cured by using the factory-recommended Motorcraft FL820S.

Had same issue when I purchased my MM years ago went with Motor craft 820S as suggested on here then, quiet since. Good advice.

http://www.crownvic.net/ubbthreads/ubbthreads.php?ubb=showflat&Number=622359

[Keith.Williams]

Mine does the same thing

[Krytin]

Have someone else start the car and listen underneath the car near the starter when the noise is happening.

[Bruce Wayne]

start looking for another engine

[Jeronimojc]

start looking for another engine


Why?


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