Hello, I own a 1987 Volvo 740 GLE wagon with an automatic transmission. It has roughly 192k miles on it. Problem is, ever since I owned the car, most of the time when I put it into reverse or drive, the rpms will drop significantly and sometimes it will stall the car(the car stalls a lot more easily when the engine is cold) from months of dealing with this I can tell you a few things. 1.) when I have the brake pressed and in park, it idles fine, at about 1k rpms, sometimes a little higher, soon as it is switched to R or D, the rpms drop to 400-500 and the car will stall in about 2 seconds OR the car will stay on after just barely dying and the rpms will restore to about 1k. like I said before, the car stalls a lot more easily when the engine is cold, almost 100% of the time actually, unless I 2.) switch the shifter to D or R and immediately press the gas a little. The rpms still drop but with more gas, it shudders back up to 1k and idles fine afterward. What could be the problem? My car always has had some sort of exhaust leak, and since I don’t need emissions inspection in my state, I have this weird feeling that my o2 sensor could be going bad, although I don’t really have solid evidence to support my theory, its just my gut telling me. I have no idea when the fuel filter has ever been changed. I was reading online that it could be a fuel filter issue. I don’t think it is the transmission, but I may be biased because I want to think my transmission will never die. haha. if you have any questions to ask me about the problem, feel free to ask. Thanks, Chris Bednar
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