very choppy idle
#1
very choppy idle
my 1980 300d has been giving me grief lately. as i pull up to a traffic light, after a couple seconds the engine starts shaking at a much higher level, and then shuts off. someone suggested it was the fuel pump, but i need a second opinion. what say you ?
#5
Water?
The Speedway station I normally use is on a high traffic road. The BP station is on a much less traveled road. We had a VERY wet spring here in Detroit, (second wettest on record). I wonder if the BP station had some water in their fuel tanks? I mean it was like I flipped a switch. When the BP fuel was gone and I refilled with my normal Speedway fuel the car ran smooth again. I agree that is probably has little to do with the brand. Maybe it was just water in the fuel...?
#7
If the car starts easily it isn't air in the lines. If it will run ok at higher speeds, it probably isn't the delivery pump, or the injector pump. That leaves fuel quality, or a dirty fuel filter, or maybe a combination of both
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