Will not start

Tiny
FLABOB1
  • MEMBER
  • 2001 OLDSMOBILE BRAVADA
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 51,000 MILES
I have a 2001 Bravada.
When starting it cranks then starts to runs for about 10 seconds, all lights and battery fail lights are off but then shuts down.
This happens each time. Acts like there's a shut down signal of some kind.
No codes when checked.
Your help would be appreciated

Bob
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Friday, July 1st, 2011 AT 2:14 PM

5 Replies

Tiny
HMAC300
  • EXPERT
Check for codes and check your fuel pressure. If you haven't changed your fuel filter in a while change that.
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Friday, July 1st, 2011 AT 3:22 PM
Tiny
FLABOB1
  • MEMBER
There was not any codes.
I replaced the filter but it does not even stsrt for 10 seconds now.
Sprayed strating fluid and it started and ran good.
But after shutting down could not start it unless we sprayed it with stsrting fluid.
Could it be a fuel pump?
I beleave it in the tank, if so how do I access it.
Thank You;
Bob
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Thursday, July 7th, 2011 AT 5:30 PM
Tiny
HMAC300
  • EXPERT
In the previous answer I asked you to check the fuel pressure. If you can't do this a pro can. The pump is in the fueltank and the fuel tank must be dropped in order to take the fuel pump out. It can be around $600-800 for a replacement pump plus labor. You might find them cheaper but it is replacedas a unit.
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Thursday, July 7th, 2011 AT 5:37 PM
Tiny
FLABOB1
  • MEMBER
Do to medical reasons I had to stop T/S my Problem. But things are alot better now.
I changed my fuel filter with no help.
The fuel pressure is 46psi with just the switch on and engine not running.
I have 2001 4.3 engine.
I beleave I have a CMFI system.
Is 46 psi OK or is there something elese in the system.
Thanks;
Bob
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Sunday, July 17th, 2011 AT 2:30 PM
Tiny
HMAC300
  • EXPERT
Fuel pressure on your vehicle must be btween 60-66p.S.I. So only haveing 46 is not enough. There more than likely lies yor problem.
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Sunday, July 17th, 2011 AT 3:20 PM

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