Alternator Output - Jeep Enthusiast Forums

3 days ago · I have an alternator question. 258 with a 63 amp Delco alternator. When I am at high idle (+/- 1500rpms) or driving, if I turn on the blower, the voltage drops from 14 to around 12, …

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How to test alternator on Jeep Wrangler?

If you have a multimeter, you can test your Wrangler’s alternator at home in no time. It’s super easy: Set the multimeter to read voltage. Specifically, you’ll need to set it to 20V DC. With your Wrangler turned off, you’ll connect the negative side of the meter to the negative battery post. ...

Why is my Jeep Wrangler alternator not working?

The alternator in your Jeep Wrangler might be functioning properly, but the current flow could be interrupted due to a loose electrical connection, a damaged wire, or corrosion on the battery terminals. Battery corrosion is a common problem (except in AGM batteries), especially if the installed battery is more than 2 years old. ...

Should I replace my Jeep Cherokee's alternator?

Don't let a weak battery leave you stranded on your next adventure. If you've noticed that your car is struggling to start or if the battery light is on, or if you're hearing the telltale whining noise under the hood, it might be time to replace your Jeep Cherokee's alternator. ...

Should I use an over voltage alternator/regulator on my Jeep?

There are lots of nightmare posts about haywire electrics on these Jeeps just from installing headlights with feedback. If you have a secondary battery on an isolated charger then fine, but in no case should an over voltage alternator/regulator be used. For things like alternators and starters, I always go with OEM. ...

How do I know if my Jeep Cherokee alternator is bad?

To diagnose a potentially bad alternator in your Jeep Cherokee, first test the voltage at the battery while the engine is running. If the voltage test fails, proceed to test the alternator and its electrical connections. It's generally recommended for laypersons to consult a workshop in such cases. ...

Where can I replace my Jeep Wrangler alternator?

Replace your Jeep Wrangler Alternator at AutoZone. Get Free Next Day Delivery for eligible orders, or select Same Day Pickup when you order online today! ...