I swapped the under hood lighting fixture to a unit with LED. On my 01 Silverado now The new one will not shut off when I lower the hood. There is a mercury switch. Any tips?

[Captain Geech]

Just as the title says. Switched out to a non GM LED unit under hood. Even though there is a mercury switch the new light will not go off when hood is down. 

[txab]

Switch bad or you mis-wired

[KevinRC]

Hi.

 

I opted to go with an LED strip under the hood which came with on/off switch.

In my work box, I bought an LED strip fed off of a 9V battery which has a mechanism much like a window alarm. They have to be lined up to make or break the connection. 

Other than having to carry spare 9V batteries, I am happy.

 

If yours is similar to my garage door open alert, the mechanism inside needs to be at a certain angle to make contact.

 

Best of luck!

 

[Captain Geech]

Thanks! I am leaning towards a simple switch myself. 

[Captain Geech]

That’s what I did and it works just fine. So much brighter than the factory light. I like the switch a lot because if it’s very bright out, who needs it. No reason to let it burn in broad daylight. Thanks again.

[Captain Geech]

While I’m at it and you’re here, my 01 Silverado after driving for 30 minutes and when coming to a stop with my foot on the brake, the oil gauge gets low and bouncy. A warning light comes on to check gauges. However if I put it in N or P light goes out gauge to normal. Someone at

work says it the pump. I’m thinking sending unit. Thoughts?

[KARNUT]

11 minutes ago, Captain Geech said:

While I’m at it and you’re here, my 01 Silverado after driving for 30 minutes and when coming to a stop with my foot on the brake, the oil gauge gets low and bouncy. A warning light comes on to check gauges. However if I put it in N or P light goes out gauge to normal. Someone at

work says it the pump. I’m thinking sending unit. Thoughts?

My 02 gets bouncy just under 40 psi warmed up at a stop. If I go over 4K on an oil change it will go a little lower and get more bouncy. Loses the bounce once moving. No light or low pressure. 01s and a few years after had problems with those gauges and speedometers. 

[Captain Geech]

Thanks man! Trying to get as many perspectives on this as I can here. Oil is full. Very clear. Less that 500 miles on it. Light only comes on as slowing to stop and stopping in gear. Once out of gear it’s fine. 

[bbwb]

Hood light is an easy fix.  Did the same conversion on my '01 you did however in my case, the light did not work.

Take the light off the hood and pop the cover apart.  You will find a triangular V shaped block in between some brass strips.  The offset in the weight is what slides the brass contacts to make or break connection.  Clean the terminals and might have to bend slightly to improve contact.  Snap it back together and you should be good to go.

Robert

[Ak_grown]

used these for alarm triggers for hood intrusion,

https://www.amazon.com/Directed-Electronics-8623-Bearing-Switch/dp/B000I1GR8K

could use to trigger light switch