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Wont start

Tiny
IRWIN_MIKE_03
  • MEMBER
  • 2004 CHEVROLET AVALANCHE
  • V8
  • 2WD
  • AUTOMATIC
  • 110,000 MILES
My truck died on me while driving and now wont start. I had the battery checked out and its still good. I have power to every thing lights, radio etc, I replaced the starter and still wont start, what do yall think is going on?
Sunday, April 4th, 2010 AT 10:02 AM

42 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Im going to assume that the engine wont turn over given the parts list you have replaced.

Start by reading the guides below on starter testing and wiring testing, they will help you figure this out

https://www.2carpros.com/articles/starter-not-working-repair

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/car-cranks-but-wont-start

The wiring diagram for you starting system is attached below
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Tuesday, April 6th, 2010 AT 1:10 PM
Tiny
KAYLAANN2017
  • MEMBER
  • 1 POST
  • 2004 CHEVROLET AVALANCHE
  • 5.7L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 205,000 MILES
I stopped to get gas and when I went to start it again, it was like the battery was totally dead. No lights, would not even try to turn over, just nothing. It will jump off just fine. I have had the battery tested, alternator tested, starter tested, coil packs are all good. Has a new ignition in it (replaced that about four months ago). When the battery is not hooked up to the truck it shows a full charge but when it is hooked up it shows that it's drained to less than three on the tester. Does anyone have any ideas what the problem could be?
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
Hello,

I would retest the battery, here is a load test you can do your self to see if it passes

https://www.2carpros.com/articles/car-battery-load-test

Please run this test and get back to us so we can continue helping you.

Cheers, Ken
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
S43S
  • MEMBER
  • 1 POST
  • 2004 CHEVROLET AVALANCHE
  • V8
  • 2WD
  • AUTOMATIC
  • 170,000 MILES
Ongoing problem: truck will start and run fine for months. Start it one morning, drive, let it sit, try to start it again and it just clicks. It will jump off everytime. Today, problem happened again and a new addition to the symptom - no interior component worked (except local radio), XM did not work. Jumped it right off though. Battery has been replaced, fuel pump has been replaced.
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Probable causes here could be the starter itself, starter relay, computer grounding part of the starter relay coil and ignition switch
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
TAMILEIGH
  • MEMBER
  • 4 POSTS
  • 2004 CHEVROLET AVALANCHE
  • V8
  • 4WD
  • AUTOMATIC
  • 155,000 MILES
In the last week I have been able to get the truck started only to have it fail again so I got to thinking when I get it starts it is always when it has been nice and sunny all though it's still cold and winter here
So today I thought I would try my hair dryer on the ignition and it started up. So when back out this afternoon and again no start so I warmed the ignition up again with my hair dryer. And it started agaian so I was thinking the problem lies in the ignition cylinder what do ya think
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
When it doesnt start, leave the key in the run position and watch the theft light and see if it flashes continuously. If it does then your diagnosis is probably right on the money.
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
TAMILEIGH
  • MEMBER
  • 4 POSTS
The passlock light does not flash at all and stays on continusiosly
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
DENNYP
  • MECHANIC
  • 1,824 POSTS
If it detects a valid key signal, the light will go out. You need to have it scanned with a tech 2 to check for security codes.
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
DGPERKY99
  • MEMBER
  • 2 POSTS
  • 2004 CHEVROLET AVALANCHE
  • V8
  • 2WD
  • AUTOMATIC
  • 77,000 MILES
Have no spark?
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Are you getting power to the coil? Have you checked the crank sensor?
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
DGPERKY99
  • MEMBER
  • 2 POSTS
I have replaced the fuel pump and crank sensor, the truck ran for 2 weeks and then just dies, wait 10 minutes and run okay, having problems with the battery lately when the truck set for a few days it won't start? I had it to a dealership and my mechanic and they can't fix it if if not broken!#$ &&(?
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
MICHAEL HOPE
  • MEMBER
  • 1 POST
  • 2004 CHEVROLET AVALANCHE
  • V8
  • 2WD
  • AUTOMATIC
  • 135,000 MILES
My 2004 2wd Chevy Avalanche will not start. It had trouble turning over last week twice (on the first start). I thought the battery (original) was going out. I have replaced the battery and it is still dead?
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
87BANSHEE
  • MEMBER
  • 15 POSTS
You should check the starter draw.
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
CHALINO
  • MEMBER
  • 2 POSTS
  • 2002 CHEVROLET AVALANCHE
One day I was driving to work and my truck just started to hesitate to run got about 7 puttering miles down the road and finally died on me I had to get a tow truck I changed the fuel filter thinking it was clogged but no luck
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
If it still won't start, you need to check if the fuel pressure is within the manufacturer's specs. Also, check to see if there is spark to the engine.
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
CHALINO
  • MEMBER
  • 2 POSTS
Done that everything is a ok but still the same result
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Okay, if the fuel pressure is good at the rail and you have a good hot blue snapping spark at the plugs, check to make sure the injectors are getting power and working. If they aren't, it doesn't matter that the fuel pressure is good.

Let me know what you find.
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
GENIE.TURNEY
  • MEMBER
  • 1 POST
  • 2007 CHEVROLET AVALANCHE
  • V8
  • 2WD
  • AUTOMATIC
  • 64,000 MILES
I parked my truck, and later tried to restart the engine, there is nothing, no noise, no gauges, no door locks, no interiors, but the headlights and the radio work fine. Have changed the battery still not working. The gear shift is freely moveable.
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
In your underhood electrical center there is a starter relay and a fuse which is 40 amp. They should be clearly marked on the inside of the cover. Check thosee to see if one of those are bad first. You could also have a bad starter. It cold be another problem like a neutral safety switch or bad ignition switch. But usually it's either a relay or something similar. If it's not one of those then take it to a pro they will figure it out and will cost you less money.
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Saturday, January 5th, 2019 AT 3:24 PM (Merged)

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