'89 740 Belching Black Smoke

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Kirk Grau - 03 Nov 2004 21:11 GMT

OK I have been helped her before. My non-turbo 740 was belching black smoke
a while back and I was able to remedy things by cleaning up the contacts at
the air mass meter. At least I thought I had. The last few days the
symptoms are appearing again and my fix is not working this time. Where can
I be looking next.

Thanks,

Kirk

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Robert Dietz - 04 Nov 2004 16:22 GMT

> OK I have been helped her before. My non-turbo 740 was belching black smoke
> a while back and I was able to remedy things by cleaning up the contacts at
[quoted text clipped - 5 lines]
>
> Kirk

Check the vacuum hose at the fuel pressure regulator. If it has fuel in
it, replace the regulator.

Bob

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blurp - 04 Nov 2004 18:05 GMT

>> OK I have been helped her before. My non-turbo 740 was belching black smoke
>> a while back and I was able to remedy things by cleaning up the contacts at
[quoted text clipped - 10 lines]
>
>Bob

Replacing my O2 sensor fixed that problem for me.

blurp

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