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Unread 04-27-2015, 09:27 PM   #1
epardo
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Starting problems

Hello, I am an new jeep owner so any help is great. I have had some issues recently with starting my jeep. I had issues before, but then it stopped for a month, and now having the issue again. Tonight I started my jeep and pulled it into the garage. Checked the fluids and topped off the washer fluid as I will be driving up to the mountains in the morning. I closed everything up and was going to get gas but the jeep wouldn't start. It has a new battery but as I try to turn the key, everything shuts off and doesn't even crank at all. When I purchased the jeep I took it to a jeep dealership to have them give it a once over and told them about that issue and they said they had no clue what it could be. I figured I would ask those that own jeeps to see if anybody has had the same issue. Any advice helps, thanks!

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Unread 04-27-2015, 09:33 PM   #2
Mattphelan
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Try replacing the starter, ignition module, ignition coil, spark plugs and wires. If thag doesnt work it could be electrical or gas related. Im not too big of a help for electrical problems but if its fuel related try replacing the fuel pump as well as the fuel filter and clean or rebuild the carborator. Hope this helps!
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Unread 04-27-2015, 10:02 PM   #3
epardo
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Thanks Mattphelan! I'll look into that. Appreciate it!
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Unread 04-28-2015, 12:12 AM   #4
optdoug
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It's probably the ignition switch. If you are lucky, you may be able to start it by fiddling with the key in the ignition. Push it in and turn it. Push it back and turn it. eventually it will make contact and start. It's happened to both of my XJ's in the past. But once it starts to happen you will need to get a new one asap. Playing with the key only works for a little while before it won't work at all. If all else fails and you need to get it started, just use a screwdriver on the starter contact points with the key in the on position.
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Unread 04-28-2015, 04:48 AM   #5
peelman
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Quote:
Originally Posted by epardo View Post
Hello, I am an new jeep owner so any help is great. I have had some issues recently with starting my jeep. I had issues before, but then it stopped for a month, and now having the issue again. Tonight I started my jeep and pulled it into the garage. Checked the fluids and topped off the washer fluid as I will be driving up to the mountains in the morning. I closed everything up and was going to get gas but the jeep wouldn't start. It has a new battery but as I try to turn the key, everything shuts off and doesn't even crank at all. When I purchased the jeep I took it to a jeep dealership to have them give it a once over and told them about that issue and they said they had no clue what it could be. I figured I would ask those that own jeeps to see if anybody has had the same issue. Any advice helps, thanks!
Don't start throwing parts at the jeep in hopes of fixing. People like that need to stop offering "help". Start by filling out what type of jeep you own, then search threads on neutral safety switch (NSS).
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Unread 04-28-2015, 05:05 AM   #6
CJ7-Tim
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Don't start throwing random parts at the Jeep in hopes of accidentally fixing an undiagnosed problem. Always start with the basics, which are free/cheap/easy.

It sounds like a low voltage issue from:

• dirty, corroded, or loose wire connections
• internally corroded battery wires
• a failing battery
• a failing alternator

Perform routine maintenance of the start and charge systems. Remove, clean, and firmly reconnect all the wires and cables to the battery, starter, and alternator. Look for corroded or damaged cables or connectors and replace as needed. Copper wires should be copper color, not black or green. Do the same for the grounding wires from the starter to engine block, the ground wires at the coil, and the ground wires from the battery and engine to the Jeep's frame/body. You must remove, wire brush, and clean until shiny the cable/wire ends and whatever they bolt to.

Jeeps do not tolerate low voltage, bad wire connections, or poor grounds.


Place your DVOM (Digital Volt Ohm Multi-Meter) on the 20 volt scale. First check battery voltage by placing your multi-meter's positive lead on the battery's positive post ( the actual post, not the clamp ) and the negative lead on the negative post. You need a minimum of 12 volts to continue testing. Next, leave your meter connected and take a reading while the engine is cranking. Record this voltage reading. Now connect your positive lead to the battery terminal stud on the starter and the negative lead to the starter housing. Again, crank the engine and record the voltage reading. If the voltage reading at the starter is not within 1 volt of battery voltage then you have excessive voltage drop in the starter circuit.

Typical voltage drop maximums:
• starter circuit (including starter solenoid) = 0.60 volt
• battery post to battery terminal end = zero volts
• battery main cable (measured end to end) 0.20 volt
• starter solenoid = 0.20 volt
• battery negative post to alternator metal frame = 0.20 volt
• negative main cable to engine block = 0.20 volt
• negative battery post to starter metal frame = 0.30
• battery positive post to alternator b+stud = 0.5 volt with maximum charging load applied (all accessories turned on)

Test the output at the alternator with your volts/ohms multi-meter. You should be measuring 13.8-14.4 volts. Load testing the alternator is still recommended.

Have your helper turn the ignition key to START while you tap on the starter with a hammer. If the engine starts, you probably need a new starter.

Have the battery, starter, and the alternator Load Tested for proper function in a test machine that applies a simulated work load. Handheld testers are inaccurate and will often pass faulty parts.
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Unread 04-28-2015, 05:29 AM   #7
Jeepkruzer
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A few months ago, my '96 would have everything when the key was turned to "on", but would have nothing after it was turned to "start". It needed a new ignition starter switch. The old one looked like it almost caught on fire. A photo of this part is shown on the Rock Auto site.
Anyway, don't go replacing a bunch of parts of internal combustion necessities if the engine won't turn over. You will just be throwing money away. On a budget? One of the best tools to use is a simple $5 test light or a $5 Horror Freight voltmeter.
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Unread 04-29-2015, 12:13 AM   #8
epardo
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Optdoug, Thanks for the advice. I originally searched incorrectly and learned a little more about my jeep and possible problems. I was in a rush so I used the screwdriver to turn it on and now I haven't had the problem with it starting. It starts up just fine now.
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Unread 04-29-2015, 12:15 AM   #9
epardo
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Peelman, apologies! I have a 1998 Jeep Cherokee xj. I'll search threads on NSS, thanks!
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Unread 04-29-2015, 12:21 AM   #10
epardo
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cj7-Tim, Thanks for all the information. As I learn more about my jeep, its helpful to know all of that.
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Unread 04-29-2015, 12:23 AM   #11
epardo
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JeepKruzer, I will be investing in those tools. I have enjoyed getting to know my jeep more and am having fun doing my own work.
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Unread 04-29-2015, 06:24 AM   #12
peelman
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Quote:
Originally Posted by epardo View Post
Optdoug, Thanks for the advice. I originally searched incorrectly and learned a little more about my jeep and possible problems. I was in a rush so I used the screwdriver to turn it on and now I haven't had the problem with it starting. It starts up just fine now.
Now that your jeep is starting "for now" be sure to read up on NSS, I think your going to be looking at that very soon. If your jeep doesn't start in Park, move the shifter to neutral with your foot on the brake and try starting it again. That will be your signal to clean that switch. Oh and clean all electrical grounds as mentioned above.

Good luck and remember DON'T throw parts at a problem.
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Unread 05-12-2015, 01:55 PM   #13
epardo
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NSS Switch

Quote:
Originally Posted by peelman View Post
Now that your jeep is starting "for now" be sure to read up on NSS, I think your going to be looking at that very soon. If your jeep doesn't start in Park, move the shifter to neutral with your foot on the brake and try starting it again. That will be your signal to clean that switch. Oh and clean all electrical grounds as mentioned above.

Good luck and remember DON'T throw parts at a problem.

The other day, my car didn't start and so I did what said, I put the car in neutral and it started right up. Looks like I will need to clean the NSS on my car. Thanks for the advice!
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Unread 05-12-2015, 10:19 PM   #14
cruiser54
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Quote:
Originally Posted by Mattphelan View Post
Try replacing the starter, ignition module, ignition coil, spark plugs and wires. If thag doesnt work it could be electrical or gas related. Im not too big of a help for electrical problems but if its fuel related try replacing the fuel pump as well as the fuel filter and clean or rebuild the carborator. Hope this helps!
This has to be the worst possible advice I've ever read on a forum in my life.
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