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Can you reach the pull tab with this https://www.amazon.com/s?k=pick+up+tool&adgrpid=55077589374&hvadid=651266055091&hvdev=m&hvlocphy=9003429&hvnetw=g&hvqmt=e&hvrand=3847630185026424648&hvtargid=kwd-301689665501&hydadcr=12193_13429349&tag=hydsma-20&ref=pd_sl_18qwakcy5n_e

Unless you have the climate controls set to off most of the time, the filter should be changed per the schedule in your owners manual or you can remove it and inspect it.

On a GM vehicle I sprayed the track the filter slides into with silicone spray so it would easily slide in.

I should never have responded to this thread. It came as an email notification and I automatically assumed this was the Mach 1 forum. My apologies to all.

Missed that you are not the poster asking. This would not be a drawn out question if he would look at his window sticker.

You purchased the car new. What does the window sticker say? HP or not?

You have no pins protruding through the empty holes. What does your window sticker show, HP option or no HP option?

That is identical to mine. That is NOT HP setup.

Do you drive it frequently?

Rent a pressure tester from most chain auto parts stores.

I have used the UPR plug since 2021, no problem. I do notice UPR uses a double O ring. I'm curious if anyone with a Mach 1, not a GT350, different engine, has had an issue?

Get a Deltran or similar smart charger

So they didn't check for a parasitic drain at the dealer?

Measure them. Front 5.5/32 Rear 6/32

Try a bottle of Ceratek for the tick.

Not confusing they should be on the spreadsheet. Line 28 through 32 Mach 1 tab.

No not at all

These are the base 275 with HP splash guards.

Exactly, nothing connected to negative terminal of BATTERY, no complete circuit

P0171 is not an evap code https://www.obd-codes.com/p0171