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960 only running on 5 cyl 900

posted by  volvito on  Fri Mar 4 03:03 CST 2005
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last visit: Sun Mar 23 04:59 CST 2014
[RELATED]

After you go through the usual causing this problem, spark plug, coil, wires, change coils, etc., also disconnect the injectors to see which cylinder is not firing by noticing no change in idle. Last, change the power stage front to back and back to front to see if now you have a different cylinder missing. If that is the case, the power stage is fried. This things are very reliable and there only two things that I know of cause them to fail. Alternator overcharge and heat. The alternator may be tested with a voltmeter hooked to the cigarette lighter, hard to detect a fault if it is intermittent. The heat issue comes fronm the flap in the air intake filter being stock open to the hot air from the exhaust manifold. You can fix it permanently open to fresh air only or buy a new air filter housing. Good luck, I hope is nothing.






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