Sensor Pass Side Below Headers
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Joined: Mar 2010
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From: Manassas
Car: 1987 Camaro
Engine: 305
Sensor Pass Side Below Headers
Can anyone inform me what the sensor is below the headers towards the firewall and right above the starter is? 87 camaro 305 ccc automatic. Its in a tight spot in the block. it broke of and i only noticed it while changing the starter.
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Re: Sensor Pass Side Below Headers
Sounds like the knock sensor, if you're talking about being screwed into the coolant drain hole on that side, exactly halfway down the side of the block and about 1" above the oil pan rail.
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Junior Member
Joined: Mar 2010
Posts: 15
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From: Manassas
Car: 1987 Camaro
Engine: 305
Re: Sensor Pass Side Below Headers
I dont remember if it is right above the oil pan rail or not. I'll have to take a look later if it ever stops raining.
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Sensor Pass Side Below Headers
The fan switch and knock sensor are both on the right side of the engine, but the fan switch is in the head.
Joined: Jun 2000
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From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Sensor Pass Side Below Headers
It's the knock sensor, it's right above the pan rail:
Thread Starter
Junior Member
Joined: Mar 2010
Posts: 15
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From: Manassas
Car: 1987 Camaro
Engine: 305
Re: Sensor Pass Side Below Headers
Thanks for all the reply's. I havent had a chance to get it out yet, or even look at it again due to the rain. Tomorrow i think might be clear enough to try.
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Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Sensor Pass Side Below Headers
That thing screws in the coolant drain. With a bit of luck there's enough deposits in the block to plug it. If not, it will leak out all coolant if you take it out. If it doesn't leak, don't poke in the hole with a screwdriver, then it will leak guaranteed.
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From: Houston, Texas
Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Re: Sensor Pass Side Below Headers
"towards firewall"
"tight spot in block"
To me that describes the fan switch more than the knock sensor, but neither are in a "tight spot" on my motor, but if it's below headers and "in" the block, then it's definitely the knock sensor.
Let us know which one it is.
Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Sensor Pass Side Below Headers
The knock sensor is in a tight spot with the engine in the frame, hard to reach with the crossmember obstructing it.
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Joined: Jan 2003
Posts: 2,133
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From: Houston, Texas
Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Re: Sensor Pass Side Below Headers
That's what confuses me because the cross member would be away from the firewall.
I would describe it's location by, " in front of starter over cross member."
I would describe it's location by, " in front of starter over cross member."
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