What did i break?
Thread Starter
Junior Member
Joined: Aug 2010
Posts: 61
Likes: 0
From: Charlotte Mi
Car: 83 Trans am, and 91 Camaro
Engine: both have a 305.. For now
What did i break?
Hello everyone. I am in the process of putting headers on my 91 rs 305 auto. While taking off the passanger side manifold i broke off a sensor in the head. I cant think what this is. Can anyone tell me what this is? Thank you.
Supreme Member
iTrader: (1)
Joined: Dec 2006
Posts: 2,403
Likes: 4
From: ms. gulf coast
Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: What did i break?
between the last two cylinders ? it's the cooling fan switch . good luck .
Member
iTrader: (1)
Joined: Jul 2008
Posts: 204
Likes: 1
From: Fox Lake, Illinois
Car: 1991 RS
Engine: 350 TBI
Transmission: 700r4
Axle/Gears: 3.08 lt. slip
Re: What did i break?
91 Rs passenger side in the block would be the knock sensor. Temperature sensor for gauge is in the head on the drivers side between #1 and #3.
Supreme Member
iTrader: (25)
Joined: Feb 2006
Posts: 7,260
Likes: 5
From: Manteca,California. Nor Cal.
Car: SOLD IT. Mopar guy only now.
Engine: gone
Transmission: gone
Axle/Gears: gone
Re: What did i break?
passenger side head? knock sensor is on the block, so head is the coolant fan switch
Supreme Member
iTrader: (1)
Joined: Dec 2006
Posts: 2,403
Likes: 4
From: ms. gulf coast
Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: What did i break?
Jono read a little closer , he said in the head . drivers side , temp.sw. . pass. side , cooling fan sw. . good luck .
Joined: Feb 2001
Posts: 13,776
Likes: 567
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Re: What did i break?
As mentioned it is the fan switch. You will notice if you start your car cold the fan will automatically come and on not shut off. That is the fail safe mode when the sensor is damaged. It is safe to drive but you want to replace it. 99% of people break this when installing headers.
Thread
Thread Starter
Forum
Replies
Last Post
UltRoadWarrior9
Tech / General Engine
336
Apr 28, 2020 10:39 PM
sjorgens
Suspension and Chassis
7
Oct 1, 2015 07:54 PM
