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Re: My 06 Colorado 4-cyl will not turn over.
This sounds like it could be a faulty starter motor. The 'click' is the solenoid switch engaging but the motor itself isn't moving. You'll need to swap out the starter and the solenoid as they are one single unit. Changing them isn't complicated. 1 small wire connector, 1 large wire connector and 2 bolts holding it onto the engine block. The hard bit is actually getting to it to swap it out. They are often jammed into tight inaccessible places where you will lose the skin off three knuckles and one elbow getting it out.
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Check the battery with a high discharge tester , if ok and fully charged clean the battery posts and battery cable terminals, check that the other end of the cables are clean and tight, one goes to earth and the other goes to the starter motor
1. Make sure your battery is fully charged.
2. Check connections from battery to starter relay.
3. Make sure you have voltage going to the start side (small wire) of the relay with the key in the "start" position.
4. If you don't have voltage going to the start side of the relay (small wire) with key in the start positon, then your starter switch is faulty (under dash usually mounted on top of steering column).
5. If you have voltage to the start side of the relay (small wire) with key in start position, and it don't click when trying to start your car, then the starter relay is bad.
6. If your starter relay clicks, but engine don't turn over, then the starter is faulty.
We have to assume the battery is usable, if not, anything else doesn't help. A couple of possibilities- First, get a simple, cheap device that uses a 9V battery and the car's cigarette lighter to prevent losing anti-theft codes.
Once this is plugged in, remove the negative battery cable first, then the positive.
CLEAN the battery connectors and terminals.
Try to start the engine.
If it still does the same thing, remove the negative battery cable again and follow it to its next connection and clean that point.
While it is off, remove the other end of the positive cable which goes to the starter terminal and clean both points.
While under the hood, look for the cable connecting the engine block to the body of the car and clean both ends of that cable.
If the problem is still there, it can be related to one of these; the ignition switch, the starter solenoid or a corroded fuse connection. The starter is not protected by a fuse but the solenoid may be.
Hello, It sounds like you have loose battery cables or very corroded cables. If that don't help then you have a loose electrical connection. It could be on the starter, If the cable ends and bolts are corroded the clean with baking soda mixed with water (don't) get any in the battery, You can clean the battery where the cables connect) Hope this helps.
You will have to check, at the starter, for power to the SMALL wire on the starter solenoid (which is on the starter) when turning the ignition switch to start. If there is power to this wire ( usually purple ) and power at the LARGE cable ( from the battery ) at the starter end.....you need a starter.
If you do not have power at the small wire at the solenoid with the key in start position and battery power is OK.....check the safety neutral switch.Moving the shifter around a little can sometimes allow the car to start if the neutral switch is worn.
A new battery does not always mean a fully charged battery. Try a boost from another car before testing the starter for power.
The battery cables need to be clean and tight....and check the ground to the engine as well.
Everything else may work OK with bad connections,they don't use the power the starter needs to turn the engine over.
Check and clean the ground on your battery cable. Also charge battery even if is new. Starters use all the amperage a fully charged battery produces to turn that starter. Make surecables are clean and tight :)
Is it a fast clicking (a sign of low voltage) or a single click when you turn to start position? Did you try giving it a jump from another car to supply a full 12 volts to your system? Follow the + (sometimes has a red cover) postive big cable from the battery down to the starter. If it clicks strongly when you turn to start with the key and you have a fully charged battery but it does not crank the engine over chances are you do need a new starter. Disconnect the cable(s) from the battery before removing the starter.Clean them when reinstalling them.
Using a voltmeter, check that voltage is identical to battery volts at the other end of cables. Check across the battery terminals, across connectors on battery, between negative post on battery and connection at starter, between positive post and end of negative cable then from postiive post and block. Wherever you find a variation, clean and re-check reading.If this does not help, there are sub system teststs you can do as well but I believe you will likely locate your problem before getting into that.