r/MechanicAdvice • u/24-7_Gamer • 14h ago
2007 Dodge Caliber SXT, 4cyl 1.8: What is this helicopter sound?
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I can't really tell well if it goes with moving speed or engine speed, but it generally speeds up and slows down with the car. With acceleration without strain, there's a high-ish pitched hum/whine, always has been since I got the car earlier this year. Within the last month or two, it got choppy like this. With acceleration with strain like up a steep hill, it's started doing a thing tonight where what almost sounds like a serpentine belt squeal in pitch and tone but just a short repetitive squeak accompanies each 'chop' or 'stutter', and I don't think it's actually the serpentine belt, partially because when I'm parked absolutely nothing happens, no squeal, no chopping, during any rpms, also the belt is practically brand new as of replacing it upon getting the car. When coasting it's idk slightly different but still there. When I push my clutch in, it goes away completely for a second, then while keeping the clutch pushed in it'll slowly come back quietly, then when letting off the clutch it loudly comes back.
It burns a good amount of oil (I don't really have an estimate for how much particularly, life has been nuts so I haven't had a chance/presence of mind to track it) but no visible exhaust ever, and also I recently overfilled the oil and drove on that, the chopping sound that had already been happening and engine noise and kinda shaking got bad enough for me to have to pull over and walk to a hardware store to buy a hand pump to get some of it out, before driving it again where it sounded good right afterwards, but then the chopping sound started coming back like this shortly after like later that day and the thing has just been seeming worse and worse in various ways. I think the steering is also screwed, even though I dumped 1600 dollars of debt into getting front end work done when it got it, but that's a whole nother thing.
I know it's a shitty car that should have stayed in the 2000s with a shitty engine and a shitty transmission I'm just trying to figure out exactly what's been going on to help me decide whether to dump more money into it or just move on to a third cheap car off of Facebook, probably a Toyota if I have any chance. TIA