Hi,

I have a 94 Blazer Tahoe LT that my father-in-law gave it to me, he told me that all it need is a oil change and a tune-up. So I did
a oil change and I change the spark plug, spark plug wires, distributor cap and rotor, pcv valve and air filter. I start the engine and
it was hesitating a little, then I drove the Blazer and I step on the accelerator and I saw a black smoke for like one minute and after
the smoke was gone and the hesitation, the Blazer was runing nice with a lot of power for 15 minutes the it start to hesitate and it
woudn't stay on. If I stop the engine will stop and it won't start unless I keep the accelerator all the way down and if I keep the
engine above 1500 RPM is fine event when I'm driving but it woudn't stay idleing and a gas smell.

Please, Luis

luisestela@comcast.net

 

1st try changing the fuel filter(usually by the frame on the drives side, around the door). if that doesnt work check to see if your fuel pump is working.