oil leak from.. wait, what is this thing?

J

jeremy irons

Member

• May 1, 2012

• #1

i can't get a picture, I can barely see it from under the car. the leak is on the rear of the engine, above the filter , below the intake. it feels like theres a sort of rubber cork in the back of the block, with a lug terminal bolted to it.

I think its leaking from here:

appreciate any insight.

 

O

o0n8

Still have noob questions

:

74 Schwinn Varsity, 75 Camaro (Project), 04 6 Wagon

• May 2, 2012

• #2

that would be your knock sensor

 

P

Preferio

I break stuff.

Contributor

:

2003 Mazdaspeed Protege 1660, 2004 Winning Blue RX8, 2005 Mazda6

• May 3, 2012

• #3

No, that's the oil pressure sender. The knock sensor on an FS has an 8" long pigtail.

 

H

hornsfan10609

Certified Mazda Tech

:

2003.5 Mazdaspeed Protege x2

• May 3, 2012

• #4

That's definitely the knock sensor. It has fluid that will ooze out but you may be leaking oil from the cooler or oil pan. Mine also has oil up there.

 

S

StealthWyvern

:

03.5 YLW MSP

• May 3, 2012

• #5

That is the presure senset...

 

P

Preferio

I break stuff.

Contributor

:

2003 Mazdaspeed Protege 1660, 2004 Winning Blue RX8, 2005 Mazda6

• May 3, 2012

• #6

Thank you Stealth. Like I said, the knock sensor on our motors has an 8" long pigtail on it, not a single 1/4" spade terminal.

 

P

Preferio

I break stuff.

Contributor

:

2003 Mazdaspeed Protege 1660, 2004 Winning Blue RX8, 2005 Mazda6

• May 3, 2012

• #7

Just do a quick google search for "Mazda Protege knock sensor" and "Mazda Protege oil pressure sensor"...

 

P

Preferio

I break stuff.

Contributor

:

2003 Mazdaspeed Protege 1660, 2004 Winning Blue RX8, 2005 Mazda6

• May 4, 2012

• #8

Preferio said:

Just do a quick google search for "Mazda Protege knock sensor" and "Mazda Protege oil pressure sensor"...

Click to expand...

So, did any of you check out the pictures for either of those?

And speaking of knock sensors on an FS...

http://www.mazdas247.com/forum/showthread.php?123814828-Connector

 

Last edited: May 4, 2012

2

2.0t03speed

Member

:

08.5 CWP Speed 3

• May 4, 2012

• #9

yes that would be the oil pressure sensor.

here is a picture of both. the red arrow is pointing to the knock sensor

 

P

Preferio

I break stuff.

Contributor

:

2003 Mazdaspeed Protege 1660, 2004 Winning Blue RX8, 2005 Mazda6

• May 4, 2012

• #10

Based on what the OP is saying, the sensor he is describing has a single terminal and a "rubber cork"...

 

H

hornsfan10609

Certified Mazda Tech

:

2003.5 Mazdaspeed Protege x2

• May 4, 2012

• #11

I didn't realize that was a specific diagram for the oiling system, doesn't even show the KS.

 

M

MSP1638

Member

:

Mazdaspeed Protege / #1638

• May 7, 2012

• #12

Oil Pressure Sender, I have a leak there as well, Bout a quart a month, I just recently took some Hi temp silicon to cover it up, so far so good, but it is incredibly hard to maneuver you hand in the area and apply it, but it can be done.

 

0

01CrznMp3

Member

:

2001 Turbo Mazda Protege Mp3

• May 13, 2012

• #13

Being a mechanic I think its funny how many people are misjudged to what an oil pressure sending unit is and the knock sensor. The knock sensor has the long pigtail on it that goes up over the edge of your camshaft pulley. The oil pressure sender just has a spade for a connector. Also if you take out the knock sensor it will not leak because it is just a tapped hole with a dead end...."just detects vibration like signals i guess you can say." If you take out the oil sender....duh its connected to an oil passage in the block so it will start oozing your lovely oil all down the block. And yes it is very common for oil senders to leak after time. A lot of vehicles have an actual plastic connector built on it and oil will leak in the actual electrical connector.