Need pics of 396 Oil Press Switch and Temp Switch Wiring - Team Camaro Tech
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Electrical & Wiring Troubleshooting electrical.

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  #1  
Old Nov 13th, 10, 05:51 PM
hatdragracer hatdragracer is offline
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Default Need pics of 396 Oil Press Switch and Temp Switch Wiring

All...I have searched and could not find anything...I have got a new engine wiring harness, and new dash harness and fuse panel. The car also got a new temp switch and oil press switch as the DPO removed them.

Any chance of someone sharing some pics of how the wires/connectors should be routed, and where the switches should go.

The AIM shows the temp switch up next to the t-stat housing but I think that is for a small block and the harness break out is on front of the master cylinder on the fender so I am thinking the switch should be somewhere on the LH side of the engine.

The AIM also shows the oil pressure switch up by the distributor, but It is not clear to me where.

Any shots of the correct wiring and switch locations would be greatly appreciated.
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  #2  
Old Nov 13th, 10, 06:27 PM
JR67RS JR67RS is online now
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Default Re: Need pics of 396 Oil Press Switch and Temp Switch Wiring

Top of the intake next to distributor?
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  #3  
Old Nov 13th, 10, 11:15 PM
flyingskibiker flyingskibiker is offline
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Default Re: Need pics of 396 Oil Press Switch and Temp Switch Wiring

I thought starting in '67 the temp sensor moved from the intake to the left head??? The harness should have a Dark Green wire branching out of it. For '68, it branches out w/ the alternator wires. For '69, I believe it went to the back of the engine and then branches out. It probably runs along the bottom of the valve cover until it drops down for the sensor/switch. '68 AIM shows the light harness in UPC 12, Sheet A9 and the engine harness in UPC 12, Sheet A11 (V8).

For '68, the oil pressure line/switch is connected above the oil filter mount. There should be a tapped hole there for the line or switch. UPC L35, Sheet A4, View B '68 AIM.
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  #4  
Old Nov 14th, 10, 10:22 AM
hatdragracer hatdragracer is offline
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Default Re: Need pics of 396 Oil Press Switch and Temp Switch Wiring

Quote:
Originally Posted by flyingskibiker View Post
It probably runs along the bottom of the valve cover until it drops down for the sensor/switch.

For '68, the oil pressure line/switch is connected above the oil filter mount. There should be a tapped hole there for the line or switch. UPC L35, Sheet A4, View B '68 AIM.
I think I figured out the temp switch issue...if the below pic is correct I dont have a port in this location for the temp switch



The oil pressure switch in the location above the oil filter makes sense, as that is where the DPO installed the gauge plumbing. My main concern is that is is very close to the clutch bellcrank...is there other plumbing like an elbow?

I know this is 3rd grade stuff to most of you, but I dont have a reference that shows detail routing/orientation and the AIM is a little fuzzy on this....if one of you could take a snap or two I would appreciate it.

I have removed the aftermarket gauges so I will be depending on the idiot lights.
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Last edited by hatdragracer; Nov 14th, 10 at 02:48 PM.
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  #5  
Old Nov 15th, 10, 11:34 PM
flyingskibiker flyingskibiker is offline
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Default Re: Need pics of 396 Oil Press Switch and Temp Switch Wiring

Welp, I too have an aftermarket oil gauge on my engine that was on it when I bought it. It has developed leaks a couple times over the years. I'm pretty sure it just comes straight out of the block. Now, I bought the elbow that is listed as the "high performance" version. It has larger threads than the lower hp engine(s) version. I haven't installed it, yet. But it looks like it would work IF it isn't correct...

Do you know what heads and year they are? I don't have the temp sensor boss tapped, either. But mine are '66 heads... I believe '67s had the boss and they started tapping them for the '68 model year.?.? There were some "cross over " heads in '67 that had them, as well.?.?
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  #6  
Old Nov 16th, 10, 12:03 AM
BlackoutSteve BlackoutSteve is offline
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Default Re: Need pics of 396 Oil Press Switch and Temp Switch Wiring

Quote:
Originally Posted by hatdragracer View Post
The AIM shows the temp switch up next to the t-stat housing but I think that is for a small block and the harness break out is on front of the master cylinder on the fender so I am thinking the switch should be somewhere on the LH side of the engine.
UPC 12 A4 shows the temp wire exiting the headlamp harness.
UPC 12 A7 show the temp switch location on V8 engines. On a BBC it's just below the valve cover and between #3 & #5 cylinders. Yes, your pic shows it correctly.
Ignore the pressure switch location on that page for 396.

Quote:
Originally Posted by hatdragracer View Post
The AIM also shows the oil pressure switch up by the distributor, but It is not clear to me where.
Wrong chapter..
L35 A9 View B. This is for the pressure switch (dash warning lamp) and not the optional pressure gauge plumbing. View B points to "Prod switch". You will also note the drawn wire is part of the engine harness. The gauge plumbing is U17 A3 View C, and it clearly shows the drawn pressure tube passing through the firewall on it's way to the gauge.

Also which AIM are you looking at? Which page shows the temp switch up next to the t-stat housing ?
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  #7  
Old Nov 16th, 10, 06:09 AM
hatdragracer hatdragracer is offline
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Default Re: Need pics of 396 Oil Press Switch and Temp Switch Wiring

Quote:
Originally Posted by flyingskibiker View Post
Do you know what heads and year they are? I don't have the temp sensor boss tapped, either. But mine are '66 heads... I believe '67s had the boss and they started tapping them for the '68 model year.?.? There were some "cross over " heads in '67 that had them, as well.?.?
My heads are from a 66 Chevelle with 325hp

The block is as well, so it looks like I need the elbow with the smaller threads until I get the correct block and heads in the car.

Thanks for the info!
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  #8  
Old Nov 16th, 10, 06:14 AM
hatdragracer hatdragracer is offline
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Default Re: Need pics of 396 Oil Press Switch and Temp Switch Wiring

Quote:
Originally Posted by BlackoutSteve View Post
Also which AIM are you looking at? Which page shows the temp switch up next to the t-stat housing ?
I was looking at the 69 AIM manaual, UPC12...I dont have the manual with me at work to give you the actual page. It did show a small block with the sender just next to the t-stat housing...I will verify tonight when I get home...if memory serves the lines were in a phantom font...so it might have just been GM reusing background geometry in their drawings.

I got the main harness installed last night, and have started going through and checking the connections to the front harness and engine harness with a volt meter...so far so good!

I greatly appreciate the feedback.
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  #9  
Old Nov 16th, 10, 01:41 PM
Fred Ficarra Fred Ficarra is offline
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Default Re: Need pics of 396 Oil Press Switch and Temp Switch Wiring

Is this the Restoration Forum? I'll check and be right back.
Nope. OK, now here's the deal when my car was new. The temp sender came out of the drivers side head between #5&7. The temp guage didn't like that. It was all over the place. But that might have been because the original cooling system didn't have a recovery tank. They weren't invented yet. No tank meant the car would leave a puddle of antifreeze where ever it was turned off. Moving it to the top the the intake manifold solved that problem. Of course one or two other problems, not related to the sender have come up over the years.
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  #10  
Old Nov 16th, 10, 10:26 PM
flyingskibiker flyingskibiker is offline
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Default Re: Need pics of 396 Oil Press Switch and Temp Switch Wiring

Yah, I have to run the temp sensor in the manifold on my '66 engine. Some intake manifolds have a tapped port for it, some don't (like my '68 3x2 manifold). Since I currently don't run a heater, I just use that port. But I plan to (re)install a heater. I bought a thermostat housing that has the correct size hole in it for a sensor. We'll see how that goes IF I run the 3x2 instead of the original manifold...
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  #11  
Old Nov 17th, 10, 01:34 PM
hatdragracer hatdragracer is offline
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Ryan
 
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Default Re: Need pics of 396 Oil Press Switch and Temp Switch Wiring

Quote:
Originally Posted by BlackoutSteve View Post
Also which AIM are you looking at? Which page shows the temp switch up next to the t-stat housing ?
My bad...I was looking at a restoration book with excerpts from the AIM's...even though I was in the 1969 section the label on the picture in the book says "* 1967 Camaro Shown"
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  #12  
Old Nov 17th, 10, 10:37 PM
BlackoutSteve BlackoutSteve is offline
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Default Re: Need pics of 396 Oil Press Switch and Temp Switch Wiring

Right on Brother! Hope you got/get it sorted.
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Team Camaro Tech > First Generation Camaro Info and Tech - 1967- 1969 "Where it all started" > Electrical & Wiring      Current Topic: Need pics of 396 Oil Press Switch and Temp Switch Wiring
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