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    Bad atlernator or something else?

    Allen from Montclair Motors. Honest guy. Charges $120/hr, so can get pricey if it's not clear what's going on. Extremely busy, though. Give him a call first.
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    Bad atlernator or something else?

    Update: It was the ECM. Bought one programmed from Flagship One, Inc. Immediately fixed the issue.
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    Bad atlernator or something else?

    Thanks, I'll check these. But given that the car runs fine on a fresh battery, including the AC, and no noises/smell anymore, what are the chances it's the belt tensioner? I drove 30 miles in battery power without issues or weird noises. It seems like the only thing wrong is the alternator...
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    Bad atlernator or something else?

    I believe it is. I already ordered a new ecm. I'll know if that fixes early next week.
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    Bad atlernator or something else?

    Thanks. Can you be a bit more specific for me? I'll be back at the car tomorrow morning. This tests the actual alternator, right? I put one lead of my meter on the alternator terminal with the bolt/nut (e.g. the "top" connection to the alternator), and the other lead to the engine block (or...
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    Bad atlernator or something else?

    Hi all, I measured voltage at battery terminal.. started off in low 12s, let the car run, no difference in voltage. Car shut off. Battery drained. Can someone help me check the fusible link? I'm trying to find a guide right now.
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    Bad atlernator or something else?

    No, the car sounds completely fine now when it runs off battery. The grinding/smell sound only came on the first crank upon turning on the car with new battery. Second time it was fine. This is why I thought alternator was "blown" and got a new one. But new one (and replacement) doesn't charge...
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    Bad atlernator or something else?

    Sorry for not specifying... 2010 Jeep Liberty, Renegade.
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    Bad atlernator or something else?

    Thanks. I'll try to see if I can figure this out Monday! Will update this thread.
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    Bad atlernator or something else?

    Thanks. So the shop replaced the alternator.. said it wasn't charging. I assumed the shop used the voltmeter. They replaced the alternator again thinking it's faulty. It still isn't charging. Again, I'm not sure how they tested it. They also told me they "checked the fuses". This was a pep...
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    Bad atlernator or something else?

    Does anyone have a good shop recommendation 20 miles from Montclair, NJ (free towing only until 20miles... maybe be able to charge the battery and drive a bit more)? At this point, it's gotta be some sort of fuse, relay, or a bad ECM. I'm looking for a shop that will correctly diagnose the...
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    Bad atlernator or something else?

    Update: Got new battery and alternators, but the issue persists... the alternator is not charging the battery. The car starts and drives fine with a fresh battery. The shop said they can't figure it out and take it to the dealer as it could be the computer. Any suggestions? I'm tempted to just...
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    Bad atlernator or something else?

    whirling/air intake sound while running. No problems then (no battery light). the grinding sound came while starting it up, but that went away once it go started (and then battery light came on).
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    Bad atlernator or something else?

    I was hoping some could shine some light on the potential issue I'm expriening. Background: car made a "whirling" sound (not a whine; sounded like an electric car almost) the past few days. It happend a few months ago, but went away. Car has been parked for 4 days. I tried to start it, not...
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    weird idle and rev limiting at start up; fine later

    So far, so good. Two morning starts and no issues thus far!
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    weird idle and rev limiting at start up; fine later

    Oh yeah, Is there a cap supposed to be on this line? I just noticed it's exposed. If so, where can I buy a cap (or what is it called?)
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    weird idle and rev limiting at start up; fine later

    Hi all, I decided to change all the plugs and the ignition coils. I used the NGK's suggested here, checked the gaps, etc. I had to use Duralast (AutoZone) ignition coils since that's what was available. This was my first time ever doing something like this. The spark plug boot broke on the...
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    weird idle and rev limiting at start up; fine later

    Oh yeah, here's my freeze frame from my cheap ODB2 Reader: EDIT: Here is my freeze frame from the code: DTCFRZF P0301 FUELSYS1 0L FUELSYS2 0L LOAD_PCT (%) 43.5 ETC (deg F) 77 SHRTFT1 (%) 0 LONGFT1 (%) 0 SHRTFT2 (%) 0 LONGFT2 (%) 0.8 MAP (inHG) 13.6 RPM (/min) 203 VSS (mph) 0 SPARKADV (deg) 11...
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    weird idle and rev limiting at start up; fine later

    Thank you. I'm not sure what plugs are in there now as I recently bought it and haven't inspected the plugs. I have ordered those exact plugs, though, in case that's the issue. Here is my game-plan. Let me know if I should do things differently. I think it's important to note that the code does...
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    weird idle and rev limiting at start up; fine later

    Thanks so far for the help. I still haven't found my voltometer, unfortunately, but I have more information. Today, I drove off while it was "hiccupping" as I like to call it during cold idle. Then, flashing check engine came off, then turned off (it did not stay on). I grabbed the code: P0301...
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