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2006 Tacoma 4.0 V6 Black Sludge / Tar around top and bottom of engine? PICS

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Airmanaaron, Dec 5, 2021.

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Dec 5, 2021 at 1:05 PM

#1

#1
Airmanaaron [OP] Member

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2006 Tacoma DoubleCab PreRunner

Hey There,

Wondering if anyone’s seen this on their Tacoma before. Looked under the truck today and saw all this black sludge / tar stuff all over the bottom, on the passenger side. You can also see some from the top. Oil is changed at all intervals and I have all the records of this.

* it’s a 2006 4.0 V6
* has 146K miles

any ideas? Thanks in advanced.

Airmanaaron, Dec 5, 2021

#1

Dec 5, 2021 at 1:15 PM

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Geeves77 Well-Known Member

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2011 Tacoma DCSB

3 inch Icon lift with UCA’s

Possible valve cover or timing cover gasket’s??

Geeves77, Dec 5, 2021

#2

Dec 5, 2021 at 3:49 PM

#3

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Airmanaaron [OP] Member

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19

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2006 Tacoma DoubleCab PreRunner

Geeves77 said: ↑

Possible valve cover or timing cover gasket’s??
Click to expand...

Looked at some pics and you seem to be right on. It looks like this stuff has been there for awhile. Is this pretty normal?

Airmanaaron, Dec 5, 2021

#3

Dec 5, 2021 at 8:00 PM

#4

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point45 Well-Known Member

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05 DCSB TRD offroad

Airmanaaron[OP] said: ↑

Looked at some pics and you seem to be right on. It looks like this stuff has been there for awhile. Is this pretty normal?
Click to expand...

very common on the 4.0 there's a TSB for it, timing cover leak

Many people have just cleaned off and degreased the leaking area and smeared some sealant over the timing cover joint.

point45, Dec 5, 2021

#4

Dec 5, 2021 at 8:09 PM

#5

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Oreo Cat Worst Member

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Coeur d’Alene, Idaho

Also power steering pump can leak, mine leaks and it will look like that if I don’t clean enough

Oreo Cat, Dec 5, 2021

#5

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