94 Starting Problem

Bakerytech · #1 04-12-2005, 09:25 AM

94 S-10 Blazer, Starting to have a problem starting, must push the gas pedal to floor to start.
Changed all plugs, wires, cap and rotor. Problem still there.

4.3 engine.

Any Ideals?

rlith · #2 04-12-2005, 10:43 AM

Quote:

Originally Posted by Bakerytech

94 S-10 Blazer, Starting to have a problem starting, must push the gas pedal to floor to start.
Changed all plugs, wires, cap and rotor. Problem still there.

4.3 engine.

Any Ideals?

CPI or TBI?

Bakerytech · #3 04-12-2005, 11:41 AM

Quote:

Originally Posted by rlith

CPI or TBI?

CPI System

rlith · #4 04-12-2005, 12:29 PM

Probably leaking CPI unit... Pull your upper plenum and look for washing.

Bakerytech · #5 04-12-2005, 01:33 PM

Quote:

Originally Posted by rlith

Probably leaking CPI unit... Pull your upper plenum and look for washing.

Had the CPI replaced twice about a year ago. The frist one installed went bad within two weeks.
Usually you smell fuel when leaking correct?

rlith · #6 04-12-2005, 04:20 PM

Not necessarily... Pull the plenum and check for washing. Did you have the nut kit replaced? But I forgot to say, before pulling the plenum, run a pressure tester at the shrader valve...Your fuel pump could be going out..

Bakerytech · #7 04-12-2005, 07:29 PM

Quote:

Originally Posted by rlith

Not necessarily... Pull the plenum and check for washing. Did you have the nut kit replaced? But I forgot to say, before pulling the plenum, run a pressure tester at the shrader valve...Your fuel pump could be going out..

Had the fuel pump etc. replace about a month ago. Just checked pressure at start up 65 psi than drops off to 52 - 55 psi. running..

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