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L67 what are these switches

jwk87

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Hi all
Wondering what these 2 switches are on the L67. I found the coolant sensor near the thermostat housing and oil pressure switch near the oil filter but what are these 2 on the side of the block?

thanks
Jason
325F95E5-9ADE-48E4-A886-880A77C711F3.jpeg
E426BD50-26ED-489E-872E-E34B309B4269.jpeg
 

woteva

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Yep, as said above, they are the piezo knock sensors.
 

krusing

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Hi all
Wondering what these 2 switches are on the L67. I found the coolant sensor near the thermostat housing and oil pressure switch near the oil filter but what are these 2 on the side of the block?

thanks
JasonView attachment 212592View attachment 212593
FYI:
The Coolant Sensor it under the Thermostat housing [at the back of the motor] mounted on an angle in to the Head,
There is usually a another solenoid on the back of the Left head if you noticed it, [that's if its there],
and that's the boost bypass solenoid.
 

Skylarking

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...what are these 2 on the side of the block?
Dirty :eek::p

(couldn’t resist since you’ve got the real answer in the above posts)
 
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