Fuel Injectors

[valve79]

2.8 93 S10 , WILL NOT START IT HAS SPARK AND FUEL PUM IS MAKING NOISE THE ONLY THING THAT I CAN THINK OF IS THE INJECTORS. BUT EVEN IF I SPRAY STARTING FLUID IT DOES NOT WANT TO START ANY IDEAS ???

[SpitAndDirt]

Don't use the Ether Bunny(Starting Fluid) to try and get it to fire up. Try using Gumout instead, it's like using aresol gasoline. Just spray for like 1 second into the intake with the buterfly valve open and then try and start it. If it tries to start, the you definitely have spark. If it doesn't, then I would look to a compression check or a weak spark condition. Hope this helps -Chris

[DrKiss_7]

Just because you hear the fuel pump, doesn't necessarily indicate that it is working properly. There is a black cap on the fuel supply line near throttlebody, remove it and you will find a valvestem like on a bike tire. It is designed for fuel pressure guage but if you don't have a test guage, with key in the "crank position", push the valve stem and you should get a massive volume of fuel very quickly. If you don't, then your pump requires replacement. Be sure that you replace your fuel filter also, a plugged filter will burn up the pump 85% of the time! Good Luck!

[valve79]

I Already Put A Brand Spanking New Fuel Pump In There Along W/ Filter. This What Happend One Day I Go To Work Park And When I Go Home It Wount Even Spit Only Turn Ever Since Same Problem ????? Help

[DrKiss_7]

I understand that you have replaced the pump and the filter. But do you have fuel pressure and volume at Injector area? You see, there may be more involved...for example, The fuel injectors are not commanded to spray by the ecm until the crank sensor recieves a signal. So the question still remains the same - do you have good fuel pressure and volume? Sorry for the hassle...but it must be verified.

[valve79]

One Of The Fuel Injectors Was Bad Thanks For The Help

[DrKiss_7]

Glad to hear it! Good Luck!