1998 Chevy Blazer i have fuel pressure and spark but not st

1998 CHEVROLET BLAZER

127,000 MILES • 6 CYL • 4WD • AUTOMATIC

GOERGELAWRENCE

MEMBER
1 POST
FOLLOW

i have replaced the fuel pump and fuel filter ,i now have 60lbs at the rail but holds pressure when turning over, good spark but i dont think the injectors are opening.

Oct 1, 2010 at 10:06 PM

RASMATAZ

CAR REPAIR CONTRIBUTOR
75,992 POSTS

If its a TBI you can see the injectors spraying when cranking it over-Spider injection-check the plugs if its wet from fuel or open the upper plenum and remove a poppet valve and crank engine-before you do this disable the coil

Oct 2, 2010 at 5:30 AM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.