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740 Engine Problem 700 1988

posted by  Uncle Olaf on  Fri Sep 5 09:40 CST 2008
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last visit: Mon Oct 10 19:04 CST 2011
[RELATED]

Hey Brickowner,


Sorry to hear that wasn't able to stave off your problem. You said in your previous post that you checked the electrical connections. Did you take a look at the chassis grounds? If they are corroded, they can cause the problems you're experiencing.


Heres a link: http://www.brickboard.com/FAQ/700-900/ElectricalCircuitsRelays.htm#MaintainingChassisGrounds

If you haven't already looked at this it may prove helpful:

http://www.brickboard.com/FAQ/700-900/EnginePerformanceSymptoms.htm#Mixture_Misfire_or_Idle_Control_Problems

One thing you may want to take a look at is the knock sensor. If its signal is missing, it can cause rough running and a rich mixture. This is explained further in the link posted above.


Regards, Jon 'Uncle Olaf'






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