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#17
08-29-2019, 09:35 PM
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Glad it fixed it! What was probably happening was the pump was burning out and started sucking more juice through the relay.
Take her on the highway and see if she stalls. Just be close to the right lane just in case. 
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-Typos courtesy of my mobile phone. 
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#18
01-26-2021, 05:53 PM
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Been there, got the tee-shirt. Change the crankshaft position sensor. On my '86 420 SEL, it was a green cable from the ignition control box, drivers' side fender well, to the bell housing.
When it gets hot it will quit; after it cools down some it will start back working again (usually).
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Providing a home for these cars: 1951 Buick Special De Luxe 1977 Rolls-Royce Silver Wraith II 1970 Rolls-Royce Silver Shadow 1986 Mercedes-Benz 420 SEL 2005 Mercedes-Benz E 320 CDI 2012 GMC Sierra 1500 4X4 1927 Pierce-Arrow Series 80 1931 Pierce-Arrow Series 43 1926 Ford Model T coupe
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#19
04-01-2021, 04:18 PM
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Min has two new Bosch pumps and does pretty-much the same thing. I ordered a new fpr. I notice that as it progresses restarts become more difficult. Open the hood and let it cool 5 mins, and it starts and will go for a while. Seems to be temperature-dependent.
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Providing a home for these cars: 1951 Buick Special De Luxe 1977 Rolls-Royce Silver Wraith II 1970 Rolls-Royce Silver Shadow 1986 Mercedes-Benz 420 SEL 2005 Mercedes-Benz E 320 CDI 2012 GMC Sierra 1500 4X4 1927 Pierce-Arrow Series 80 1931 Pierce-Arrow Series 43 1926 Ford Model T coupe
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#20
04-09-2021, 08:31 AM
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My ‘88 is doing this and it has a brand-new pair of Bosch pumps. The dying seems to be temp related.new fuel pump relay also.
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Providing a home for these cars: 1951 Buick Special De Luxe 1977 Rolls-Royce Silver Wraith II 1970 Rolls-Royce Silver Shadow 1986 Mercedes-Benz 420 SEL 2005 Mercedes-Benz E 320 CDI 2012 GMC Sierra 1500 4X4 1927 Pierce-Arrow Series 80 1931 Pierce-Arrow Series 43 1926 Ford Model T coupe
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