Head question
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Joined: Sep 2011
Posts: 152
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From: Florida
Car: 1991 Pontiac Firebird Trans Am
Engine: 1987 Chevy 355 TPI Mild Cam
Transmission: 5-Speed T-5 WC
Axle/Gears: 3.42
Head question
The hole that is in the center, not the spark plug or exhaust obviously, is that for the fan switch/coolest temp sensor or what? Thanks
Joined: Apr 2005
Posts: 7,736
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Head question
Depends on the side of the engine
One head has the temp gauge sender , the other has the fan switch
Check out what ( a single wire ) engine wiring nearby you have that is not connected to anything;
the connector on the end of the wire will tell you what unit ( sender or switch ) you are missing
The coolest temp sensor ( CTS ) for the computer is always at front of the intake ; not in the head
One head has the temp gauge sender , the other has the fan switch
Check out what ( a single wire ) engine wiring nearby you have that is not connected to anything;
the connector on the end of the wire will tell you what unit ( sender or switch ) you are missing
The coolest temp sensor ( CTS ) for the computer is always at front of the intake ; not in the head
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NinjaNife
Tech / General Engine
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Aug 23, 2015 11:49 AM