Originally Posted by Biggy2moto
So I have a 1997 jeep wrangler with the 4.0L. I am having a serious problem with my jeep because it won't start. I took out my alternator and had it checked at autozone and they said it was bad so I got a new one. My jeep will start sometimes, but other times it won't.
When I put the key in the ignition and turn it to the on position nothing comes on, no dash light, no radio. I have a dim flicker of the hand brake on the dash but hats it. It won't crank, it wonk click, nothing!! But if I sit there for a about 10 minutes and try it it again. It starts right up like nothing was wrong.
Need help please! Where do I start?
You should start with:
Check your high-current connections at the battery, along with the grounds to the engine and chassis and the high-current connection to the starter and underhood fuse and relay center. They should be free of corrosion, secured tightly to their respective terminal post or lug. The wire-ends should not be frayed where they are swaged into the connector.
You should have the battery tested, preferably load tested to 50% of its cold cranking amperage output. Most battery sales stores/auto parts counters will test your battery using a digital signal generator that is handheld and accurate for warranty claims purposes, but loading the battery/charging/starting system while testing (voltage drop testing) is the most reliable method to figure-out where your (likely) open is.
Could be as simple as a loose connection at a battery terminal or starter, which could be intermittent. Could be a starter soleniod that is failing. The alternator is responsible for system charging, thus would not directly affect vehicle cranking.