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Chevy Silverado and GMC Sierra Starting Problems

193 messages,  Last post on Nov 16, 2009 at 4:26 PM

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What is this discussion about? Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Silverado 2500, Truck


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#96 of 193
Re: 99 sierra [jamnay] by obyone
Oct 26, 2008 (5:59 pm)
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Replying to: jamnay (Oct 26, 2008 9:16 am)

Fuel pumg regulator pressure?
#97 of 193
my 2000 GMC Sierra is hard to start when warm by Alvan08
Nov 21, 2008 (4:16 pm)
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Mty 2000 gmc sierra 5.3 is harder start when it is warm. You have to crank on it a few times then it starts. Sometime if you give it alittle gas when you are cranking it it starts faster. once it starts it runs fine
#98 of 193
Re: my 2000 GMC Sierra is hard to start when warm [Alvan08] by obyone
Nov 22, 2008 (3:55 am)
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Replying to: Alvan08 (Nov 21, 2008 4:16 pm)

Sounds like a bad fuel regulator or check valve.
#99 of 193
by edwin4
Dec 02, 2008 (1:11 pm)
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i got a 2001 silverado 1500 and it wont start it turns over and fires and then dies right away i kept it started with starting fluid for a few seconds just to make sure it ran it did anybody got any suggestions
#100 of 193
95 pickup has no spark or fuel? by chucky3
Dec 04, 2008 (9:09 pm)
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My 95 gmc 1500 350 has stalled out every so often when comming to a stop for over a year and normally starts right back up. This time it won't start. Ive changed plugs and wires , cap and roter, and ignition control module. Turns over fast but won't even attempt to start. I know it has no spark but not sure if im getting fuel. I've tried starting fluid but still nothine. I was thinking maybe replace the ignition coil and distributer next??? Thanks
#101 of 193
1999 gmc silverado 5.3 4wd by Kablelynn
Dec 04, 2008 (10:20 pm)
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Driving and all sudden lost all power and died. Would turn over but not start. Had towed. All gauges light up but my fuel gauge went to empty and I had plenty of fuel when I was driving. Checked all fuses they seem to be fine. I will run test but wondered if anyone has any idea. Put a new fuel pump on about a year ago, and heater core connectors and other than u joints and brakes and keeping oil and filter change, I haven't had any problems. Does have alot of miles. Any ideas??? My check engine light did come on a day ago but went out. Kablelynn
#102 of 193
STARTING PROBLEM by GCMIKE
Dec 23, 2008 (6:18 am)
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2002 SILVERADO 5.3 ENGINE. WHEN I TURN THE KEY TO START NOTHING HAPPENS EXCEPT ALL THE GAGES COME ON.I GOT TO TURN THE KEY 30 TO 50 TIMES TILL THE TRUCK TURNS OVER AND STARTS.I DONT KNOW WHERE TO START LOOKING?
#103 of 193
Re: 2001 GMC 1500HD Wont Start!! [2001hd] by GCMIKE
Dec 23, 2008 (6:21 am)
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Replying to: 2001hd (Sep 26, 2008 10:51 am)

i have the same problem, let me know how your problem comes out on fixing it.
#104 of 193
2004 Silverado 5.3 by Distilled
Dec 26, 2008 (11:39 am)
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I've been desperately searching for answers online and have read all 103 posts in this forum - I'm leaning towards fuel pump at this point, but at around $250 and with the requirement of tank removal I'm trying to really be sure I get this right; I'll keep you posted.
 
For now though let me share what the last 4 days has shown me.
 
Vehicle: 2004 Silverado 4WD 5.3 Z71 fully loaded
Anomalies: We've had colder than usual temperatures and a lot of snow and ice here in Salem, Or for the past week - other than that it's life as usual.
 
The facts:
- Pulled in to work Monday and shut the truck off
- An hour later went out to start the truck and all it would do is crank, no fire at all
- After a half hour of screwing around it finally started and ran fine
- Over the next 6 hours I had intermittent problems, it would always crank fine, it wouldn't always start. When it did it ran normal.
- Called the dealer and a tech told me that he was 99% sure it was the fuel pump, "save yourself $95 of diagnostics and just buy one and put it in" he said.
(NOTE) New fuel pump prices range from $200 to $542 depending on OEM vs aftermarket and the parts house you call
- I decided that a $95 check was worth the investment and took the truck to the dealership for testing.
- An hour and $322 later I pulled out of the service bay with a new crankshaft position sensor - "fuel delivery system checked out OK, but your battery is showing some weak indications, we suggest you change it before it leaves you stranded. It could also be part of your sensor problem."
- Ran the truck 2 days, no problems, an occasional rough idle was also gone
- Yesterday morning (xmas) I spent 3 1/2 hours clearing my elderly neighbor's driveway. The truck was either idling or running hard in 4wd for the duration of the time while I cleared down trees and made my way through a foot of snow going up their driveway. The truck gave me no problems.
- Afterward I made a few trips to town and everything runs good
 
- Now, this morning....walk out to the truck and hit the keypad to unlock the doors; nothing. I unlock the door with the key and then hit the button on the arm rest to unlock the door - nothing.
- Put the key in and the truck barely starts due to the battery being weak.
- I let it warm up and let the battery charge for about 15 minutes and then shut the truck off and try to restart it, for some reason thinking that the door locks might reset or something. I also notice that my fuel gauge is on E, so I add some gas thinking that maybe I ran it out and didn't notice. I added about 5 gallons and the gauge didn't move.
- I turn the key and the truck fires and dies with every turn of the key.
- I don't have a fuel pressure gauge but I pushed the button in on the fitting and when the key is turned on or cranking there is LOTS of fuel spraying out.
- I pulled the weak battery and get the old man to give me a ride down to swap the battery, Schwab's tests the battery and finds nothing wrong, but agrees to warranty it since it gave me problems early in the morning.
- Installed new battery and the condition is the same; cranks, fires, dies.
 
That's my story. I'm stuck with 10 inches of snow on the ground with a dead truck and a B-Mer that can't clear the ruts in the driveway - what a deal 'eh!?
 
Next move: a buddy of mine is picking me up shortly, I'm going to buy the on board diagnostics (OBD) software kit from the local parts house and run a full check, if that doesn't surface anything I guess I'm pulling the tank and changing the pump assembly.
 
Something just clicked; the fuel gauge sending unit is part of the fuel pump and in-tank filter assembly, I suppose there could be a connection or a supporting indication here since the engine seems to be starving for fuel (only firing briefly and then dying) and my fuel level indicator appears to be stuck on E when I know there is at least 5 gallons or roughly a 1/4 full tank.
 
Replies are welcome but this has been more of a venting session and a sharing of information than anything else. It does appear that most of the posts are symptoms only with little mentioned about final outcomes, so I will re-post with results as they become available.
 
Anyone interested in a '04 Silverado? Will trade for a pre '80s Ford or Chevy 3/4T pickup of which I can diagnose and fix with screwdriver, some duct tape, and a volt meter.... WELL IT'S TRUE!!!!
 
Thanks for reading, more to come.
 
BJ
Salem, Or
#105 of 193
Re: 2004 Silverado 5.3 [Distilled] by chrisgh
Dec 26, 2008 (3:16 pm)
Reply

Replying to: Distilled (Dec 26, 2008 11:39 am)

in-tank filter assembly - was the answer for us. It was a pain in the rump removing the gas tank, but seems to have worked for me. Good luck.

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