94 jeep cherokee has no power at the starter.when key is turned
I have all power at all accessories but no juice at the starter.voltage meter doesn't even move when key is turned on.could it be the ignition switch is shot? need help on this one guys.......lights don't dim or nothing.just silence when key is turned.
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Re: 94 jeep cherokee has no power at the starter.when key...
Check neutral safety switch... On automatic AW4 transmission it's on the passenger side, directly across from gear selector shaft. The two inner terminals on the side opposite the clip lever on the harness connector are the ones that operate starter. If you jump across these you should get voltage baqck to the small wire on the starter solenoid.(trigger) The switch itself is about $200, but can be rebuilt or replaced with a salvage yard part cheaply. Get a manual fro removal, and follow them carefully. PS: connector is up near ;the trans dipstick!
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Bad neutral safety switch, starter relay, starter fuse or bad ignition switch. You will have to check each of those things to find what's keeping the current from reaching the starter, when you try cranking.
Forget about modules for a while and check to see where power coming from the battery stops. Is there power on one side of the ignition switch? does it come out the other side when you turn the key? Is there power going through the neutral safety switch? Is there power at the main starter connection? How about the trigger wire on the solenoid with the key turned to the start position? Is anything working at all? Is the battery fully charged, load tested and connected to the system with clean connections and a good ground? Use a volt meter to check connections...a test light will tell you there is power, a meter will tell you how much...any drop in voltage shows a possible problem. I can't be there to test but if you check everything I mentioned you are bound to find something! Good luck, ask if you have another related question and don't forget to rate answers!!!
If the starter is getting proper voltage at main lead and trigger wire (with the key in "start") pull the starter. If it was making strange sounds likely there is something wrong with it. Check flywheel as well and make sure you can turn the engine by hand. If you aren't getting the proper voltage, check the battery, connections and starter relay (in power distribution center)
Try gently tapping the starter motor with a hammer or bar. There may be a bad contact in the sollenoid or the starter motor brushes worn to their limit. Tapping may give you a tempory fix if the problem lies in the starter motor.
First, do not assume anything. Check the battery with a volt meter and make sure there is 12.v or better there. Clean cable terminals where they contact the battery, check both ends of cables for good clean solid connection. Since you hear a click, that is good ...ignition switch etc is likely good. Check the voltage at the starter : large cable should have 12v, small wire should have 12v when key is turned to "start" position. If you have both, starter has failed. Some Jeeps have an additional starter relay inside the power distribution center near the battery. if you have voltage at the starter, the relay is good. If when you test battery, voltage is low, have it charged and load tested. If battery fails test, no other tests are valid. Once started, check for running voltage of at least 12.9v with all accessories and lights on. At no time should voltage drop below 12.5, or should it continue to creep down. If it does, the alternator may be faulty.(providing belt is good and tight)
check your relays going to the starter. the jeeps are sometimes bad for wiring problems. the key switches are bad to just keep in mind always take the hot post from the battery before you change any of these things .i promise your problem is with in these three hope i've been of some help to you !
First place to look is in the wires from the battery to the starter and the battery to the ground... got corrosion? this can really choke off the flow of electricity to the vehicle... check both ends of the starter cable and the ground from battery to frame (or block or trans) any kind of green or white deposits indicate it's time for new ones... this can be tricky because the corrosion can be inside the insulation on the wires... if corrosion is bad enough even a jump won't start the vehicle as not enough voltage will reach the coil... if the wires are good then it's time to check the coil and it's wiring... if you aren't real savvy at testing components with a meter then replace the coil (assuming good wiring) and test for spark by holding coil wire about 1/4inch from the block or any good ground while turning engine... you should see a nice blue spark... hope this helps...;-)