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RSR failure symptoms- B230FT 1987 745 700

posted by  Rolyak on  Mon Mar 7 16:14 CST 2005
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last visit: Fri Oct 24 08:03 CST 2014
[RELATED]

I don't know if this will apply to anyone else's vehicle but I've had two "radio suppression relay" failures. Both times I noticed abnormal backfireing when decelerating. Much more pronounced than when a throttle switch sometimes sticks. Also the idle speed would drop down to about 500 rpm's and then return to normal. It also seemed a little balky on acceleration.

I installed my spare last night before it failed completely. (like the first time!)


I pulled it apart and using a microscope could see cracks in the solder. I reflowed the solder and will test it as my backup unit.






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