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#1
07-05-2009, 12:50 PM
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Lost Power While Driving
My car is a 1988, SEL, 420, ( about 140,000 miles). I had driven about 100 miles when suddenly, the car lost power, the gas gauge dropped to zero and then jumped to full. I had just driven through road construction at a crawl in temperatures over 100. However, the car had no symptoms of overheating. After sitting about one-half hour I was able to restart it but was afraid to head on down the road, so I laid over and the next morning the car started right up so I headed out on my trip. About 10 miles down the road, the car lost power again so I had it towed to a mechanic. I'm assuming that the problem is in the fuel pump or some other component in the fuel delivery system. Is there a common problem with the fuel system in this car? How should the mechanic go about diagnosing the problem? He's not a Mercedes specialist but has serviced my car for years. I thought that perhaps I could give the mechanic a head-start on fixing the problem. Sorry for my wordiness.
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#2
07-05-2009, 01:09 PM
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Did it stumble, then quit or just shut off immediately??
Did you get any other strange indications on the dash - battery, ABS, or other light? What condition is the battery? New? Alternator working? What's the battery voltage at an idle - around 13.8vdc? What's the battery voltage with the car off? A fuel pump problem won't affect the gas gauge. This sounds electrical - low battery due to bad battery or alternator.
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There is a very fine line between "hobby" and "mental illness." FrankenBenz: '87 560SEC with an '02 cammed LS6 and custom 4L60E. Bling: '87 560SEC, ported/polished, lowered Lisa: '87 560SEL, lowered
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#3
07-05-2009, 05:45 PM
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The power just stopped. No stumble. The battery is quite old (3-5years). I don't recall any other strange things or lights on the dash. I'll suggest to the mechanic that he check the battery and alternator. Thanks for your help.
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#4
07-06-2009, 06:09 AM
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OVP? Fuel pump relay?
__________________
1988 California version 260E (W124) Anthracite Grey/Palomino Owned since new and still going strong and smooth MBCA member Past Mercedes-Benz: 1986 190E Baby Benz 1967 230 Inherited from mom when she downsized 1959 220S Introduced me to the joys of keepin' 'em goin' There are only 10 kinds of people in the world--those who understand binary and those who don't
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