Help identifying a sensor

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Dec 22, 2023 | 06:31 PM

pleed

Thread Starter

Heel & Toe

Joined: Nov 2023

Posts: 24

Likes: 2

From: Pittsburgh PA

Help identifying a sensor

Hello C4 experts

Cant find the pic etc of this sensor in the FSM

On drivers side between #1 and 3 cyl

87 stock engine

Accidentally broke it. Seemed to have a ceramic top and brass pin. When I unscrewed it coolant came out of the block.

Knock sensor?
Coolant temp sensor?

Connector is shown with one green / white stripe wire.

Please help!

Many thanks as always!

Last edited by pleed; Dec 22, 2023 at 06:39 PM.

Dec 22, 2023 | 06:40 PM

MaxLean

Pro

Joined: Jan 2005

Posts: 686

Likes: 62

From: San Jose Ca

Fan switch.

Dec 22, 2023 | 08:08 PM

WVZR-1

Team Owner

Joined: Sep 2003

Posts: 25,384

Likes: 2,736

Yes fan switch for the AUX FAN GM# 14043276 or an equivalent. In the FSM if you have the EDM (Electrical Diagnostic Manual) 8A-201-2 Fig A

Dec 22, 2023 | 08:24 PM

pleed

Thread Starter

Heel & Toe

Joined: Nov 2023

Posts: 24

Likes: 2

From: Pittsburgh PA

Quote:

Originally Posted by WVZR-1

Yes fan switch for the AUX FAN GM# 14043276 or an equivalent. In the FSM if you have the EDM (Electrical Diagnostic Manual) 8A-201-2 Fig A

Thanks so much! Picking up a replacement tomorrow!
You guys are the best!

Dec 23, 2023 | 06:51 AM

Incorvettei

Drifting

Joined: Oct 2020

Posts: 1,395

Likes: 437

From: Marlton NJ

Agreed. Fan switch

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