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Old 09-25-2004, 07:02 PM
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Join Date: Mar 2002
Posts: 33
sporadic starting problem

My fathers 89 300se has a starting problem. The car will start most of the time and sometimes it just does not do anything when you turn it over. It also has a tendency to shut of once in a while. i have replaced the throttle sensor and still nothing. Putting in new plugs did help but eventually the problem came back.

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Old 09-25-2004, 07:12 PM
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Join Date: Aug 2001
Location: Evansville, Indiana
Posts: 8,150
Does it stall while driving or only when coming to a stop? If while driving, get a new fuel pump relay and check the current draw on the fuel pumps -- if one is going bad and pulling too much juice, it will toast the relay.

If it only happens while coming to a stop, remove and clean the idle control valve and replace the associated hoses if hard and leaking.

Probably the relay.

1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!
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Old 09-25-2004, 07:37 PM
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Join Date: Mar 2002
Posts: 33
Ok thanks i will try that and get back.

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Old 09-25-2004, 08:09 PM
nglitz's Avatar
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Join Date: Aug 2004
Location: Hamilton Square NJ, near Trenton
Posts: 391
See here for my solution for a similar problem.

Norm in NJ
Next oil change at 230,000miles
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