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Re: Car has power but no start
Double check all connections at battery & starter and make sure they are tight & clean. Turn headlights on & have someone try to start & see if headlights dim at all.
Starter should be at lower part, back of engine. Back as in, opposite the end with the pulleys.
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i would say when the person broke into your car they set off the security system which stops the car from starting, the way to reset the security is to put your key into the ignition turn the key until all the dash lights come on and let them stay on about 15 minutes after the 15 minutes have expired turn the key off and wait about 3 seconds and then your car should start. hope this helps.
These cars and many many many other gm cars and trucks are equipped which an antitheft feature. Many times on engines swaps and ignition changes, this system gets interrupted because the computer is not seeing the proper signal from the original equipment. Try to start the car, when it doesn't turn over, leave the key in the "on" position. Look for a light near your gauges that says "security" or "antitheft". If you see this indicator light, then the problem is definitely the antitheft system. Fixing it is rather expensive. Bypassing it is relatively cheap. This link explains everything you need to know.
I have an 06 Impala LT. Just out of the blue my car wont start. Everything else comes on radio,lights, etc. When I turn the key it kind of makes a loud thumping sound. I had the conclusion of maybe in need of a new battery or something more serious....any suggestions?
This is a problem with chevy vehicles that have the system theft light. after a couple of years of using the key, the lock tumblers inside the ignition switch tend to wear out and so causing the system to think it's being stolen. Now you have to put the key in and turn the ignition to the on position, without cranking the car and leave it for 10 minutes until the theft light goes out. Very annoying especially if you're in a hurry. The dealer cost to repair the ignition switch goes for about $600-$800. that includes re-teaching the key.
does the car accessories work like the radio when you turn they -- if yes then i would recommend replacing the stater. if no power of anything goes to the car then it sounds like a bad key i would try and get a warranty on the part you got. or check the connections with the key that was replaced if you did the work yourself.
If the battery has gone dead, it could cause the security system to go into full lock-up mode. If it has locked up the accessories will work after the battery is charged back up , but the power to the starter will be cut off and it wont turn over. You need to do the 30 minute learn procedure. A GM dealer will print it out for you and you can do it yourself. It's very simple if you follow the procedure exact. hope this helps and good luck.
On my girlfriends sl1 the engine would not turn over at all and I took the starter off and it was fried! I replaced it and it started right away, but I never had a problem with the lights not coming on.