Low voltage, check engine, abs, parking brake and ESP light intermittent
Just changed the rear end in our 2007 Aspen 5.7 2wd.
Swap went well. Drove great! The next day, the
alternator took a dump. I replaced the alternator. It
drove great for an hour round trip. Went back to go
somewhere else. All the warning lights for the brakes
and ESP came on. Speedo was fine. I figured it could
have been a loose connection. The next day, I went to
check the problem. The car had trouble starting and the
check engine light came on. Code read P0562...low
voltage. I checked the speed sensors in the rearend.
Swapped them out. No change. Put the other ones
back in, after I cleaned them. All looked good. All the
while, I was charging the battery. I figured something
was wrong with it. Let it charge. Tge car struggled to
start. CE light still on. Brake lights not...I can handle
Put the car in drive. Warning lights back on. Grrr. Made
it to the destination. After doing the errands, we loaded
up the car and hopped in. Fingers crossed. Car was
sluggish to start. Wouldn't get above 1900 rpm or 30
Got home, let it set a while. Started right up. Still has CE
light. No warning lights. Drove just fine. Took it to
O'Reilly to check the alternator. Figuring it could be a
voltage regulator issue too. Passed all tests. Asked him
to read the codes. Got the same code I did. But, while
he was scanning, the warning lights were flashing.
Said thanks and went along my way.
Went elsewhere...to get some tasty adult
Went back out to the car...struggled to start. CE light
again. No warning lights until I drove off. Car barely
moved above 20mph. Stopped. Started it up again. Only
thing is the CE light.
My guess is something got fried when the alternator
went bad. It was hot! The battery was hot!
No real rhyme or reason for the lights other than
something may have fried.
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