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There is a rattling noise coming from the engine, Engine,

Customer Question
Hi Pearl There is...

Hi Pearl There is a rattling noise coming from the engine

Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on?

Engine

Mechanic's Assistant: What is the model/year of your Mitsubishi?

Almost 6 months now Mitsubishi Endeavor 2006 V6 3.8L

Mechanic's Assistant: Are you fixing your Endeavor yourself? What have you tried so far?

Checked valves , rings etc and servuced

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

*** serviced , under load exhibits less less power , especially uphill when stationary the noise is non existent

Submitted: 11 months ago.Category: Mitsubishi
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Answered in 3 minutes by:
9/12/2017
Mitsubishi Mechanic: David Craig, Auto Mechanic replied 11 months ago
David Craig
David Craig, Auto Mechanic
Category: Mitsubishi
Satisfied Customers: 5,994
Experience: Owner/Mechanic at 3D Automotive
Verified

Hi Im David, thanks for visiting the site. do a back pressure test.

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Customer reply replied 11 months ago
what should that show?
Mitsubishi Mechanic: David Craig, Auto Mechanic replied 11 months ago

whether or not the catalytic converter is clogged.

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Mitsubishi Mechanic: David Craig, Auto Mechanic replied 11 months ago

the rattling could be the internal breakdown of the honey comb

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Customer reply replied 11 months ago
The catalytic converter has been removed.
Mitsubishi Mechanic: David Craig, Auto Mechanic replied 11 months ago

that would have been nice to know in the beginning.

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Mitsubishi Mechanic: David Craig, Auto Mechanic replied 11 months ago

what else has been done so I dont go over the same things?

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Customer reply replied 11 months ago
That is all I remember for now , full engine overhaul , pistons and valves ok
Mitsubishi Mechanic: David Craig, Auto Mechanic replied 11 months ago

compression?

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Customer reply replied 11 months ago
The noise is from front engine compartment.
Mitsubishi Mechanic: David Craig, Auto Mechanic replied 11 months ago

ok, ontop near the valve cover or near the front engine cover?

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Customer reply replied 11 months ago
When revving you will not hear the noise , only while driving , especially when accelerating or going uphill
Mitsubishi Mechanic: David Craig, Auto Mechanic replied 11 months ago

i would check the timing belt tension to see if the tensioner has failed and could be the rattling and the loss of power up hills.

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Customer reply replied 11 months ago
Ok will check that , do you have a part no. for me for the tensioner and belt or link where I can buy that?
Mitsubishi Mechanic: David Craig, Auto Mechanic replied 11 months ago

standby

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Mitsubishi Mechanic: David Craig, Auto Mechanic replied 11 months ago

can i help with anything else?

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Customer reply replied 11 months ago
One more I think , sometimes the car does not start in Park and when I move it to Neutral it starts.
Mitsubishi Mechanic: David Craig, Auto Mechanic replied 11 months ago

ok, Ill send you the adjustment for the transmission range sensor

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Mitsubishi Mechanic: David Craig, Auto Mechanic replied 11 months ago

hows it going?

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Customer reply replied 11 months ago
Hello,
I need to order the parts and fix. I will update you when done.Thanks
Mitsubishi Mechanic: David Craig, Auto Mechanic replied 11 months ago

ok, thanks

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Mitsubishi Mechanic: David Craig, Auto Mechanic replied 11 months ago

hows it going?

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