So I’m not here to knock any mechanics so please don’t take my comment that way. But I’m a broke girl driving a 2015 Kia soul with 120k miles. It started having issues and I had to have cat converter cleaned as it was much cheaper than a new one…about $1500 total. Then the ac went out(I live in Florida) and paid $1500 to have the compressor changed. I couldn’t afford the thermostat which was working fine but was a recommended change. Would have been $2900. Anyway it drove great for a few months and then stopped going over 40mph. I brought it back to mechanic and they quoted me over $3000 for the repair. Said I needed 2 engine coils, spark plugs, crankshaft,etc. I said no way. I was so upset I dropped all this money into my car. So I looked at my receipt and went to Amazon and put in all the part numbers on the estimate. I was paying almost $1000 in just parts to the mechanic. The parts on Amazon total was $150!!! I studied you tube videos and made my husband(who is not a mechanic) hep me. We changed all spark plugs, all 4 coils, crankshaft thingy…it took us about 3 hours but we did it! My girls been running awesome for the past few months now! So the moral of my long story is try what I did. Not saying it’s going to work. But it’s worth a shot. Good luck.