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Truck not starting

Tiny
MBRACKEN85
  • MEMBER
  • 1992 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
I have a 1992 Chevrolet Suburban 454 engine, It will start if we poor fuel into the TBI, but will not start otherwise. We have taken the fuel line off and know it is getting fuel. What else could be the problem?
Saturday, January 8th, 2011 AT 11:34 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you hear the fuel pump come on for 2secs when you turn key on? Crank the engine over and look at the injectors are they pulsing
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Sunday, January 9th, 2011 AT 12:16 AM
Tiny
MBRACKEN85
  • MEMBER
  • 2 POSTS
Fuel pump is working since we get fuel up through the lines, we disconnected the fuel lines and tested them, it just doesn't start until we poor fuel into the TBI, we also checked the injectors, they seem to be getting fuel as well.
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Sunday, January 9th, 2011 AT 12:20 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the actual fuel pressure if its within specs-

Shes's getting fuel and spark-Check the valve and ignition timing
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Sunday, January 9th, 2011 AT 3:53 PM

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