HELP!! What sensor did I just break??

[Formul8d]

When pulling out my passenger side header I snapped a sensor just behind the 3rd spark plug. I thought it was the knock sensor but I looked it up and the connection doesn't look the same. Then I thought it was the coolant temp sensor but then found out that's on the drivers side. So I'm lost.



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[Formul8d]

http://img.tapatalk.com/d/13/01/09/emasu8az.jpg

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[firebird_1995]

Sure looks like the gauge coolant temp sensor. Are those iron heads?

[jaysz2893]

in the head i would guess a coolant sensor, perhaps gauge. I dont have on on my pass head, only drivers head and water pump. Did L99 have them there?

[meissen]

Do you have any better pictures Matt? How many wires are going to the sensor? Can you take a picture of the plug?

[Formul8d]

Well I've always wondered what the random one wire running across my engine was. I think I have cast heads. There's no coolant sensor on the drivers side but there's a wire running across to it. So was someone just a cheap ass and put cast heads on?? Would valve covers and intake just bolt on to them??



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[Formul8d]

http://img.tapatalk.com/d/13/01/09/ydube8aj.jpg

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[jaysz2893]

i am 99% sure that is the coolant sensor for the PCM should be in water pump

[firebird_1995]

The pcm water temp sensor uses 2 wires. Maybe the b bodies had the sensor on the passenger side.

[jaysz2893]

Hmmm.. did the one for the gauge use just 1 wire?

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[meissen]

The one on the driver's side only uses one wire.

[SexyTransAm]

I bet some one swaped heads and put the drivers side on the pass side. That looks like the head temp sensor.

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[meissen]

Are the LT1 heads interchangeable in that the driver's side can go on the passenger side?

Those are definitely iron heads - Matt said they have rust on them.

[SexyTransAm]

I would thin so. Just like the gen 1 motors

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[Dhayes]

That's deffinitly the head Coolant temp sensor. Normally its in between cylinder 1/3 on the drivers side so looks like the heads were swapped side. They can go on either way just a matter of switching around block off plugs and stuff. I did it on mine because the steam pipe threads on the back were almost totally screwed up so I swapped them and just switched the solid plugs around.
That sensor will work fine on either side. There should be a solid plug between 1/3 on the drivers side just switch it with the sensor if u want to move it.

Make sure u take a pic of the plug with you. I broke mine removing my headers too. Autozone had 3 different 2 wires and that's what they showed for both sensor locations. Oreilly had the 1 wire but also showed 2 wires at both locations. Just have toblook for the 1 wire on their list. They had One for like 13$ and one for 20$. I bought the cheaper one and it was bad outbid the box. The 20$ has been perfect. Just a heads up.

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[Formul8d]

They're definitely iron heads, now I need to find out if its a stock block. I may have an impala ss motor which would kind of explain my low track times. Where can I find the vin number on the block?? Thank for all the help guys. Kind of disappointed to find out I have iron heads but hoping I still have the Fbody cam.

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[firebird_1995]

Look on the passenger or drivers side of the block just above the oil pan for the numbers "327" or "588". They are about 2" tall.

[meissen]

I posted in your thread on MiFBody, but for reference here's the location for the VIN stamp:

http://shbox.com/1/block_vin.jpg

[nstg8r]

Do you have a jet fan switch? If so, that could be the sensor for the fan switch.