I have a 1995 4.3 blazer it is hard to start and when it does it reeks of gas. I have replaced plugs, plug wires, cap and rotor, fuel filter and pump, egr valve and o2 censors. when it runs it runs it bogs down. Any help would be greatly appreciated!!
Have 1994 4.3 cpi and the problem I had sounds same.
It was a leaky pressure line in pletium . easy fix $45.00 part $15.00 gasket.
the leak was caused from the fuel lines rubbing together in pletium.
take the vortec cover off ,then remove air regulator in middle and look inside . I turned on power to key and gas spray came from drivers side of pletium looking in hole.fuel line side. if gas spray on passanger side then gas regulator faulty. takes 5 min to check
After fixing truck runs runs great. no more gas smell in cab.
also you can smell oil for gas
Check the fuel injectors, a big problem in those years. Here is a picture of the replacement.
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how do i check them? I checked the valve in the back by the dashboard and gas squirts out
one more problem.... my timing is off, i was told its supposed to be running at 0- +2 and its running at 0- -20 i was told they can jerry rig it but i was better off getting a new engine.
how do you check the fuel injectors?
the list goes on and on..... also replaced Idle Air Control Valve and the service engine soon light is on (egr valve) so i replaced and still getting same code
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