2004 Chevy Avalanche 1500 Z71 4WD

Asked by Guru94CR3B Sep 13, 2020 at 12:48 PM about the 2004 Chevrolet Avalanche 1500 4WD

Question type: Maintenance & Repair

Truck has 414K miles, engine still going strong with
regular maintenance.  Replaced alternator and
serpentine belt 2 months ago.   Just returned from
trip and no problems at all.  This morning I went to
the store and when I came out to start the truck it
fired up then shut off...I started it again and if I keep
the RPMs up it will stay running but shuts off when
it tries to idle.  It did this several times.  I eventually
was able to get it started and kept the RPMs up
while in neutral. when I got home and put it in park
it rough idled then died... I noticed the clock on the
dash had reset to 1200 which tells me this is more
of an electrical issue than it is fuel...and yes I had
the fuel pump replaced about 2 years ago
(expensive cause they have to drop the gas tank
since it’s inside the darn tank.). Any help is
appreciated!
Mick

1 Answer

18,225

Load test the battery. Replace if necessary. Scan for trouble codes. Check the charging system to see if it’s charging.

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