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Engine frequently shuts off in heavy trafic 700 1986

posted by  someone claiming to be Ted on  Wed Mar 31 00:29 CST 2004 [RELATED]

Car is 1986 740T with B230 engine.
In heavy, stop and go traffic, it will frequently
shut off. Usually as I let my foot off the accelerator,
anticipating another stop. Normal idle speed is around
800 - 900 rpm. Car can be restarted instantaneously, and
it's just a matter of time before it shuts off again.

Normal highway type of driving is perfectly fine.
I suspect some component is overheating. Perhaps Hall's
sensor. What I don't understand is, the car restarts fine.
Faulty Hall's sensor requires much cooler engine temperature.

Any ideas ?







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    Engine frequently shuts off in heavy trafic 700 1986

    posted by  TONY H on  Wed Mar 31 02:45 CST 2004
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 17 16:39 CST 2014
    [RELATED]

    Ted, does the idle slowly go down and then a stall? I would possibly clean my Throttle body.

    I had that scenario so I was playing the Brake, clutch gas pedal game in traffic to keep the idle up.

    I did the throttle body clean , fuel pump regulator and replaced my 25 amp Fuse holder. Don't know which was at fault but I'm good-to-go.
    --
    '75 Jeep CJ5 345Hp ChevyPwr and two motorcycles: it wasn't Volvos safety , it was Longevity that sold me








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    Engine frequently shuts off in heavy trafic 700 1986

    posted by  Jim Holst on  Wed Mar 31 02:39 CST 2004
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    last visit: Tue Jan 4 11:05 CST 2011
    [RELATED]

    Besides checking the Hall sensor (I had one do intermittant stalls on a Reliant), try resoldering he fuel pump relay.








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    Engine frequently shuts off in heavy trafic 700 1986

    posted by  Steve on  Wed Mar 31 01:14 CST 2004
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    last visit: Fri Oct 24 07:16 CST 2014
    [RELATED]

    Sounds a lot like Hall sensor (you are due for one) or a wiring fault in your engine harness. Have you inspected it for insulation failure?







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