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2003 Avalanche won’t start.

BGS_Chevy

New Member
Joined
Nov 21, 2020
Messages
2
Hey Fellas- I have 2003 Avalanche. Went out to dinner a couple a nights ago, came out to start my truck and it wouldn’t start. Power to every thing but the nothing out of the engine. Mechanic changed the starter. Cranked right up but as I was driving the RPM needle was jumpy and the turn signals didn’t work. Turned it off 40 minutes later and it wouldn’t start. Any ideas of what could be going on. New battery and I don’t believe it’s the security trigger....
 
Last edited:

frito

PM 2020
PM 2018
PM 2017
Full Member
Joined
Dec 12, 2013
Messages
2,252
Location
Cincinnati, OH
I see you say power to everything. Is the engine cranking and just not starting or won't it crank at all?
 

Boogie327

Full Member
Joined
Aug 26, 2020
Messages
42
Check the battery with a multimeter with the engine off. And make sure you have around 12.4 - 12.6 Amps. I had a similar issue and it ended up being the alternator. Driving and all the sudden lights when dim and wouldn't start. My RPM was jumping around a bit also since the truck was working off the battery only.
 

Rothy

Full Member
Joined
Nov 9, 2020
Messages
12
Location
Reading, PA
Yep...

 
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