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sound from rear of car, CEL

My situation: 97 vortech supercharged cobra, 37k miles CEL is on, I will flash the code ASAP. Car will be garaged until its diagnosed. Sound: electric humming sound from center/rear of car. I thought it was an exhaust leak until I listened closer. It's definitely an electrical hum like...

When you turn the key to off and kill the engine, is the fuel pressure guage needle supposed to drop instantly to zero or hold pressure for a while?

I posted recently about a P0300 code. I think i've narrowed it down to the crank sensor. But before i order a new one i just want to make sure it won't be a waste of my time. Any comments on how a failing crank sensor would affect my car would be much appreciated. FYI the symptoms of my...

Where is it relocated to for a supercharged engine. I can find it on an NA engine but i can't find it on my car. I'm new to these modular engines, thanks.

Check engine light came on. I still need to pull the code. But at the time the light came on i noticed that i get no power past 4k rpm. My vacuum/boost meter shows that i lose vacuum when it gets close to 0 and drops back to the 15-20 range. I can't get any boost at all. Is this a vacuum...

My car...97 Cobra w/Vortech SC Problem...knocking in #7 cylinder, pulled code and yes i'm misfiring. It sounds like it's in the upper block and the knock isn't that loud. Mostly audible at idle, inaudible at acceleration. But until i can get inside i wont know for sure what needs...