PtownBubba
Member
Posts: 27
Loc: Illinois
Reg: 07-30-06
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07-26-12 08:55 PM - Post#2252540
Our 2007, 5.3 FlexFuel 'Burban seems to start hard,,,, it has always popped right off when you hit the key,,,,,, now it has to spin over several seconds,,,, before it starts. It will act like it is not going to start,,,, so if you let off key and try again it seems to start a lil' better,,,, runs fine after it does start,, no burps or belches,,, I put some cleaner in the fuel in case there was some sour gas in it, that is still working it's way through. No check engine or any other lights, or messages. Could the fuel pump be starting to die ?
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bobb
Super Senior Member
Posts: 4628
Loc: paradise
Reg: 09-05-03
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07-26-12 09:13 PM - Post#2252547
In response to PtownBubba
try holding the gas pedal to the floor next time.
| 70 L camino 350 all forged,174 baby blower, g-force 5 spd, road rage suspension. Pray first before all else fails. |
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PtownBubba
Member
Posts: 27
Loc: Illinois
Reg: 07-30-06
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07-27-12 04:54 AM - Post#2252589
In response to bobb
My wife said she did that ,, does that re-set something when you do that ? Do not understand how that could assist starting with fuel injection engines,,, or if that does help, is that a clue to what may be wrong ?
I read about a key 're-learn' procedure,,, turn key on for eleven minutes,,, do not try to start,,, then turn key off, then try to start,,, will try that.
My first idea was it was fuel filter or pump, all original (53000 miles) but it only misbehaves with starting
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Bad Bowtie
Senior Member
Posts: 4265
Age: 41
Loc: TX
Reg: 07-04-03
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 07-27-12 09:20 AM - Post#2252675
In response to PtownBubba
-no fuel filter on the 2005+ models-
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Chevrolet Customer Service
Contributor
Posts: 201
Reg: 07-05-10
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08-01-12 05:42 AM - Post#2254420
In response to PtownBubba
Our 2007, 5.3 FlexFuel 'Burban seems to start hard,,,, it has always popped right off when you hit the key,,,,,, now it has to spin over several seconds,,,, before it starts. It will act like it is not going to start,,,, so if you let off key and try again it seems to start a lil' better,,,, runs fine after it does start,, no burps or belches,,, I put some cleaner in the fuel in case there was some sour gas in it, that is still working it's way through. No check engine or any other lights, or messages. Could the fuel pump be starting to die ?
PtownBubba,
Have you been able to take your vehicle to your dealer to have them look into this issue? I would be happy to look into this further for you. If you would like me to look into this please send me the last 8 of your VIN. Please keep me posted on this concern. If you have any other questions, comments or concerns please feel free to contact me anytime.
Thank you,
Stacy Chevrolet Customer Service (Filling in for Tricia)
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PtownBubba
Member
Posts: 27
Loc: Illinois
Reg: 07-30-06
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08-01-12 05:56 AM - Post#2254425
In response to Chevrolet Customer Service
Thanks for the help,,,, I took it to a local repair shop, [not dealer] it was the fuel pump,,, mech said also that there was a lot of missed or dropped codes in the Burb's computer read out, so he also put in a new ignition switch, since it was only 30 bucks,,,,and the parts dept had them on the shelf, so he figured it may be somewhat of a common repair. Fuel pump,,, well GM replacement [not generic ] was a lil' over 300,,, pretty pricey for a glorified windsheild washer pump,,,, 
out the door was 600 bucks,,,, really like the Burb, but it is not perfect,,, we have dealt with the oil consumption thing since day one [2007],, GM/Dealer even told us that was normal to use/burn a quart of oil every 3K miles for that vehicle/engine,,,,,,,, 
Now we hear there is a fix for that,, but it is out of warranty now,,,,, 
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 Rick_L
Honored Member
Posts: 24812
Loc: Katy, Tx, USA
Reg: 07-06-00
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08-01-12 03:19 PM - Post#2254612
In response to Bad Bowtie
"-no fuel filter on the 2005+ models-"
Is that right? I was thinking about changing mine for the first time.
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Bad Bowtie
Senior Member
Posts: 4265
Age: 41
Loc: TX
Reg: 07-04-03
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08-02-12 07:22 AM - Post#2254856
In response to Rick_L
That is correct. It is built into the in tank fuel pump module now... 
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