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fuel system prime prior to start
Hello everybody,
I have read this forum over the last two years on a daily basis. I have enjoyed and benefitted from the great amount of knowledge and experience. Using the search feature has always provided answers to my questions and I did not have reason to post any. So first of all, thank you for the answers!!! It has saved me a lot of money, I'm sure. However.....I need some help with a symptom I've been chasing for a while. I have a '84 380sl. When turning the key to the RUN position, I used to hear the fuel pump run for a second or so. When activating the starter, the engine would fire immediately. I haven't heard this "fuel prime" and when I activate the starter, it takes longer for the engine to fire-up. Studying the wiring diagram has not given me any solutions. In desperation I bit the bullet and did the wrong thing. I got a new fuel pump relay without proving it was faulty. It did not fix the problem. Rather than continuing the "throwing parts at it" syndrome, I am hoping to get some help. Any suggestions out there? I would greatly appreciate it. Thanks
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Duke '84 380SL |
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anybody???
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Duke '84 380SL |
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Could you explain a little better?
I mean, is it hard to start when cold/hot? How much longer does it take to start? Any events just prior to the symptom? How well does the engine run after start? Your CIS system may be loosing pressure. Might be a faulty Check valve on fuel pump…
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1983 500SL Euro |
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