Question about 1985 Chevrolet Cavalier
When you turn the ignition key it activate a metal rod to ignition switch on top of column steering
this switch is adjustable by loosing the two bolts and nuts
look if you bend that rod could be the problem
hope it helps
Posted on Oct 19, 2013
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Posted on Jan 02, 2017
Check your egr vavle. i had this problem with my old cavalier and it was as easy as removing it and cleaning it. It's probably plugged up with carbon
Posted on Aug 27, 2008
Actually i doubt the switch is in default here. Especially that if i'm not mistaken the theft light on those was only on the monsoon radio systems and only tells the status of the theft lock on the radio. And if the theft lock light on the radio comes on it's because it thinks it's being unplugged. Taking that in account and reading all the problem you have with the car, i'm strongly leaning toward a grounding problem. So check the negative post on the battery to be sure its not moving or broken in any way, and verify all the grounding wire and straps and replace them if needed. Not many people know this but the ground wires on a car are 100 times more important than the positive wires. Without the grounds, the current has nowhere to go on any components, so that means even the spark plugs stop sparking. If all the grounds are good, just check the battery itself and the alternator just to be sure they are not causing these problems. And if all else fails, then it would be option to change the ignition switch/cylinder. Pretty sure though that you can find one in a scrap yard for less than 150$, those cavaliers are practically raining everywhere in the scrap yards, and you can also use one from a pontiac sunfire which is the same car. Also, you can use most switches from other GMs in the same years, like a grand am, grand prix, lumina, etc. Just make sure that the car you take it from has basically the same equipment more or less than your cavalier so that the zenith has the same number of wires as yours and same positions also.
Posted on Jul 08, 2009
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