01 Aztek starts sometimes
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Author Topic: 01 Aztek starts sometimes  (Read 700 times)
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svick83
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« on: November 07, 2016, 09:30:31 AM »

Hello everybody, I am new here. My fiancee and I just picked up a 01 Aztek. The first two weeks we have had it was great. Now we're having some issues. Sometimes the Tek won't start. When you turn the key forward, the fuel pump sounds like it isn't trying hard, and it won't turn over. The Tek won't do anything. When this happens, the radio says "Locked" and the clock resets. Also, the headlights won't shut off when set to automatic, and the interior lights stay on when they are set to door. The only way to shut the headlights off is to turn on the parking lights and shut them back off. I had it scanned and it is showing codes U1064, U1016, U1040, P0327, and P0463. Could it be a bad BCM, or most likely something else?
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Bill Salina
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2003 Gold FWD Aztek - aka "The Warthog"


« Reply #1 on: November 07, 2016, 04:31:48 PM »

I would check all battery connections.   On my 2003 the positive connector on the battery used to come loose and it would cause issues.  Also check where it connects to the starter. 

Not saying that's your problem, but it's where I would start if it were me...
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Bill (aka Bird Dog)
2003 Gold FWD Aztek "The Warthog"
svick83
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« Reply #2 on: November 07, 2016, 05:00:59 PM »

I'll check all of the connections again. I haven't checked them at the starter yet. The previous owner had the battery terminals screwed up, so it may also be a place to start.
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pearlheartgtr
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« Reply #3 on: November 22, 2016, 03:20:30 PM »

I had similar issues and I fixed them by crimping the positive connector (the line from the fuse box also runs in there) at the battery terminal.
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svick83
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« Reply #4 on: November 22, 2016, 03:57:04 PM »

I believe I have got it fixed. I changed both battery cables, and the BCM. The positive cable was cut, and was previously rerouted incorrectly. The cable coming from the alternator was hooked directly up to the fuse box. The negative also had a slice in it. The BCM was draining the battery also. I used a voltmeter and even after the Tek was off overnight, it was still pulling too much from the battery. It's all been changed and have had no issues for the last week.
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pearlheartgtr
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« Reply #5 on: November 22, 2016, 04:49:58 PM »

You gotta love shoddy wirng jobs. I had an '88 Cherokee that was an absolute nightmare under the dash. I'm surprised the truck never caught fire. Just one example, the guy who owned it before me had stripped parts of the hot lead and just wrapped other wires around it. He left old wires in there. We'd follow a wire from the hot lead for 6 or 8 feet, only to have it connected to nothing.

I'm glad you got it all worked out.
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