fuel problems in silverado

[njacobs]

my 89 silverado is pumping to much fuel at start-up flooding out all sensors replaced what is next please help truck is TBI injection with 13 psi fuel pressure.

[MT-2500]

Originally Posted by njacobs

my 89 silverado is pumping to much fuel at start-up flooding out all sensors replaced what is next please help truck is TBI injection with 13 psi fuel pressure.

Need more details on pumping to much fuel?

Is fuel pouring out bottom of injector key on engine cranking or just key on or off?

Any code setting or check engine lights?

Will it start if you hold pedal to floor?

Does it have good hot blue spark to all plugs?
Are plugs black on ends?
Black smoke out tail pipe?
Will it go ahead and start or do you have a no start?

Map sensor and tempt sensor to PCM and TPS sensor play a very important part on fuel mix.
Do you have a scaner to get any sensor readings in PCM?

[j cAT]

Originally Posted by njacobs

my 89 silverado is pumping to much fuel at start-up flooding out all sensors replaced what is next please help truck is TBI injection with 13 psi fuel pressure.

rebuild the TBI ..rubber parts ..

[njacobs]

Originally Posted by MT-2500

Need more details on pumping to much fuel?

Is fuel pouring out bottom of injector key on engine cranking or just key on or off?

Any code setting or check engine lights?

Will it start if you hold pedal to floor?

Does it have good hot blue spark to all plugs?
Are plugs black on ends?
Black smoke out tail pipe?
Will it go ahead and start or do you have a no start?

Map sensor and tempt sensor to PCM and TPS sensor play a very important part on fuel mix.
Do you have a scaner to get any sensor readings in PCM?

truck will not start with pedal to the floor i do have good spark on all plugs I have also replaced the map sensor and tps and the coolant sensor as well the is black smoke at the tail pipe at least it stained my driveway. i don't have a scanner for sensor readings but i also have had a check engine light on from time to time but don't know how to read the code. fuel is super high pressure at cranking it will run if you unplug the injectors and then plug them up one at a time but not always

[njacobs]

Originally Posted by j cAT

rebuild the TBI ..rubber parts ..

yeah thats kinda what I thought too i just bought a rebuild kit for it i will try that tomorow hopefully it will fix the problem

[j cAT]

Originally Posted by njacobs

yeah thats kinda what I thought too i just bought a rebuild kit for it i will try that tomorow hopefully it will fix the problem

post BACK what you found .