Alkepgeist18

Hello, to anyone who has experience with chevy equinox. I recently bought a 09 equinox ltz. Seller was a dealership/auto shop. No codes when bought. But shortly after purchase I got a code for misfire. It would only studder when uphill or around 40mph. Now I got a code for oil pressure sensor and it idles fine when in park but as soon as I put it in drive it gives a growl/grind. It's not giving me any cam codes or timing chain codes. Just oil pressure switch. I've bought the part, I've got a full shop with car lift and all. I have moderate experience with vehicle repairs but I lack in timing and internals having little experience in that area. Does this sound like a bigger issue or is it possible this oil pressure switch is just not allowing proper oil pressure to the timing chain and causing this growl in drive and while accelerating. I ask because I don't want to risk throwing that chain off track and creating a bigger issue/fix if I can avoid it. Any and all help would be amazing. As I said before I have moderate experience and more than enough equipment and tools to do most things. I don't claim to be anything special or be a expert in any feild just a daily working father. I work hard and barely make it by. I'm just trying to fix this car I'm still paying off so I don't end up without a vehicle to get to work with while still paying the bill for it thank you and God bless.

mountainmanjoe

is there oil in it?

Alkepgeist18

yes sir. Oil level is good.

mountainmanjoe

how many miles? Did you very oil pressure with a mechanical gauge?

Alkepgeist18

178k and no I don't have a Guage. I bought the new oil pressure switch since it was just a 12 dollar part and I don't need a oil change just yet but I'm gonna change it anyway when I swap the switch. It's a 3.4. There's no visible sings of the timing chain hitting the cover or anything. It's runs fine when in park. But once in drive it gives a growl kinda hum. The idle is very up and down also it varies 4 to 6 under rpm instead of steady idle. Goes kinda past 1k rpm then under repetitively.

BlueOx

Keep your wallet in your pocket and don't overthink this. Change the switch out and see what you get. Breathe

Alkepgeist18

That's what I'm hoping. I think I'm being over worried because I just got the vehicle and am still paying it off. But I also have a good feeling this will be a simple fix. Fingers crossed. I'm also in Iowa for my first winter. I have no experience with how cars act in the super cold Temps. It's been below zero for the past week and I work nights when it's coldest. I know that plays hell on manifolds and oil if it's not rated for cold.

ruley73

It doesn't get cold enough to affect much in Iowa (I live there too). You shouldn't have much trouble as long as you're using the recommended 5w-30 oil.