Fuel spraying out exhaust

40

Asked by Jun 12, 2012 at 02:10 PM about the 1995 Geo Tracker 2 Dr LSi 4WD Convertible

Question type: Maintenance & Repair

I have a 95 4x4 tracker with a 1.6 16 valve engine that was running great then all of a sudden it
started to sputter and lose power then I noticed a strong smell of gas. I had the vehicle towed home
and after replacing the fuel pressure regulator, throttle position sensor, injectors, cap, rotor, plugs and
wires we still have fuel in the exhaust. Upon removal of the exhaust manifold and firing up the engine
you can see the fuel spray on the first two cylinders even though the spark plugs are firing. Any help
will be greatly appreciated.

1 Answer

56,775

Try checking the EVAP purge valve. The EVAP system "recycles" gasoline fumes back to the engine to be burned instead of being released into the air from EVAPoration. Hence the name. Sometimes the purge valve gets stuck open allowing fuel to be sucked up through the system instead of just the fumes. HTH. -Jim

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