Broken sensor on bottom of engine bLock?
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Car: 89 Iroc
Engine: 305 TPI
Transmission: 700R
Broken sensor on bottom of engine bLock?
I have a Iroc 305 tpi and inwas under my car when I noticed a broken and torn wire that was missing a harness of some sort. I can't figure out what it connects too because everything broke off and the only thing left is the wire with a weather connection. The connection location is right under the engine dipstick and No it is not the knock sensor my knock sensor is connected. Help guys every mechanic I go to can't figure it out.
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Car: 85 camaro z28
Engine: 355
Transmission: t-5
Axle/Gears: 3.73
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Car: 89 Iroc
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Re: Broken sensor on bottom of engine bLock?
It goes to a plastic connection but the whole peice is missing I can only tell u that it connects to a plastic
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Car: 85 camaro z28
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Car: 89 Iroc
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Re: Broken sensor on bottom of engine bLock?
To be honest with you I don't even kno if it's a sensor for sure but something was connected to that area if u follow the engine dipstick allthe way down and the way it curves you will see the connection. What ever is in that area that's what it is but it's not the knock sensor.
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Car: 85 camaro z28
Engine: 355
Transmission: t-5
Axle/Gears: 3.73
Re: Broken sensor on bottom of engine bLock?
To be honest with you I don't even kno if it's a sensor for sure but something was connected to that area if u follow the engine dipstick allthe way down and the way it curves you will see the connection. What ever is in that area that's what it is but it's not the knock sensor.
Or the power wire leading to your ecu?
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Car: 89 Iroc
Engine: 305 TPI
Transmission: 700R
Re: Broken sensor on bottom of engine bLock?
Doesn't go to the starter. Is there a tempature sEnsor around that area or what else is around that are other than knock sensor bcus I can't find anything in the books.
#13
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Re: Broken sensor on bottom of engine bLock?
The connectors on the Knock Sensor and Cooling Fan Switch wires are physically idential, just the color is different. Fan Switch is up higher, though- in the pass. side cylinder head between the two rear saprk plugs.
The Fan Switch plug and connector are amongst the most commonly mutilated electrical connectors you find on 3rd gen F-bodies.
From memory, I think the KS wire is black and the Fan Switch wire is white or tan. I recall the colors being the same on the sensor/switch connector and the plug that goes on it (GM giving you a little hint which one goes where). I've even seen them mistakeny interchanged with eachother on occasion (including when I did it once and couldn't figure out why the fan would never kick on!).
The Fan Switch plug and connector are amongst the most commonly mutilated electrical connectors you find on 3rd gen F-bodies.
From memory, I think the KS wire is black and the Fan Switch wire is white or tan. I recall the colors being the same on the sensor/switch connector and the plug that goes on it (GM giving you a little hint which one goes where). I've even seen them mistakeny interchanged with eachother on occasion (including when I did it once and couldn't figure out why the fan would never kick on!).
Last edited by Damon; 06-16-2012 at 06:43 AM.
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Car: 1989 IROC-Z
Engine: 305 TPI
Transmission: 700R4
Re: Broken sensor on bottom of engine bLock?
Maybe the cooling fan temp switch..Does your fan come on like it is suppose to?
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Car: 89 Iroc
Engine: 305 TPI
Transmission: 700R
Re: Broken sensor on bottom of engine bLock?
It might be tempature switch bcus I had wire connected to the fan automatically to come on when I turned the key bcus it was coming on late and sometimes it wouldn't come on. Can this cause chEck engine light to come on bcus my light is not on?
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Car: 1989 IROC-Z
Engine: 305 TPI
Transmission: 700R4
Re: Broken sensor on bottom of engine bLock?
Disconnect your wire that makes your fan come on. Turn your key on and ground the loose wire to the block and see if your fan comes on. If so, it goes to the temp cooling switch..
#17
Re: Broken sensor on bottom of engine bLock?
Go to the library. Download a scanning app on your iphone. Get the pin out diagram for your model year and scan the page. If you need it for a 1988 Camaro, let me know. I do not know how to upload a photo as it is asking for me to link it.
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Car: 1987 IROC-Z
Engine: TPIS II Supercharged w/Nitrous
Transmission: 700R4 Probuilt
Axle/Gears: 3:73 Richmond 12 Bolt
Re: Broken sensor on bottom of engine bLock?
That is a knock sensor.. You are stating yours is already hooked up... Take a picture of the one you say is hooked up..
#21
Re: Broken sensor on bottom of engine bLock?
Last edited by Nelz; 09-17-2012 at 01:02 AM. Reason: found ac delco part number
#22
Re: Broken sensor on bottom of engine bLock?
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