1994 Chevy issue

Asked by Jun 29, 2016 at 10:59 AM about the 1994 Chevrolet C/K 1500

Question type: Maintenance & Repair

1994 Chevy truck v6, have already
changed fuel filter and distributor cap and
rotor. Use heat and lucus, truck  has hard
time going up hills 1st thing in morning and
the everything seems fine, then u drive
about 20 miles and check engine light
comes on and it starts to pudder and loose
speed. Then it kicks back to normal and
light goes off! Can't figure it out any
suggestions?

1 Answer

118,395

First thing is test the fuel pump pressure and flow, then the codes that are stored in memory. If the pump fails the test replace it. If you only got a system lean code then that could have been the fuel pump, clear the codes and roadtest too see if the problem has been corrected and the light does not return.

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