C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

what plug is this? please help

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Old Jun 3, 2019 | 10:41 AM
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Default what plug is this? please help




I have a 1990, short story, bought the car with motor out and all parts and bolts thrown in 2 large plastic bins. This being my first corvette, there was a steep learning curve to get it all together.
however its done and I have 2 plugs that were unidentified plugs. I went to start the car 1st plug was quickly identified as the oil temp switch (didn't have it in and it was not in the boxes).

This plug is located near the wiper motor it has a short lead from the main harness so it cant reach far. Maybe I missed it but I think the wiper motor only has 1 plug. Wires are red, black, and brown. I could not find it in the manual
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Old Jun 3, 2019 | 10:54 AM
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I'm assuming your car doesn't start. That plug should attach to the underside of the coil pack on top of the distributor (drivers side)

Tod got it right. Front wiper connector!

Last edited by 28uniflite; Jun 3, 2019 at 12:56 PM.
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Old Jun 3, 2019 | 11:33 AM
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That's the windshield wiper motor connector. The connector is on the front side of the wiper motor.
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Old Jun 3, 2019 | 11:58 AM
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Originally Posted by Tod Stiles
That's the windshield wiper motor connector. The connector is on the front side of the wiper motor.

It certainly appears to be indexed for the cover of the motor. 3 connectors on the wiper motor, end of armature and 2 @ the cover.

OP - the cavity is actually visible in your snapshot! 2d snapshot just to the left of the connector behind plug wire.

Last edited by WVZR-1; Jun 3, 2019 at 12:15 PM.
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Old Jun 3, 2019 | 10:11 PM
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Still unknown wire plug.
- The top of the distributor is plugged into the lower part.
- wiper motor has 2 plugs connected already located in pictures, Maybe I plugged in the wrong plugs??






Any other suggestions?

Side note: Its just impossible to get an oil temperature sensor/switch. They have discontinued the part. There are a few out there but when you call them to verify they have it, they never do. I think I will need to find a part's car.

Thank you guys!
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Old Jun 3, 2019 | 10:46 PM
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Originally Posted by WVZR-1
It certainly appears to be indexed for the cover of the motor. 3 connectors on the wiper motor, end of armature and 2 @ the cover.

OP - the cavity is actually visible in your snapshot! 2d snapshot just to the left of the connector behind plug wire.

David is right.

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Old Jun 4, 2019 | 01:08 AM
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Your post #5 has the connector and the cavity in the 'white circle'! I'm sure post #6 should have you sorted by now!!


****You did extremely well with snapshots, multiple views, mentioning wire colors etc. Many/most times it's just a very random shot. YOU DID WELL!!!!!

Last edited by WVZR-1; Jun 4, 2019 at 07:51 AM.
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Old Jun 4, 2019 | 08:29 AM
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Originally Posted by whoride76

Side note: Its just impossible to get an oil temperature sensor/switch. They have discontinued the part. There are a few out there but when you call them to verify they have it, they never do. I think I will need to find a part's car.

Thank you guys!
Found them for a 1991 at RockAuto. I assume they are the same
https://www.rockauto.com/en/catalog/...+/+switch,4588

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Old Jun 4, 2019 | 08:38 AM
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[QUOTE=GregMartin;1599520421]Found them for a 1991 at RockAuto. I assume they are the same
https://www.rockauto.com/en/catalog/...+/+switch,4588
[/QUOTE
i just looked again and found the 1990 part I think it’s the same. RockAuto is a good source for this kind of stuff.
https://www.rockauto.com/en/catalog/...+/+switch,4588
Regards Greg
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Old Jun 4, 2019 | 08:05 PM
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OMG! if it was a snake it would have bit me in the face. Being 6-3 I often look down on things and not at them. so looking down I completely missed the plug on top of the motor. I thank everyone for not calling me a dumbass (thinking it was fine, lol). For my first time on here you guys were great and quick with replies. Thank you!
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Old Jun 4, 2019 | 08:49 PM
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I think I sent the link for the oil pressure sender by accicent. Here is the oil temp sensor.
https://www.rockauto.com/en/catalog/...re+switch,4592
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To what plug is this? please help





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