I have a 1987 gmc safari.When i drive it seems to not want to go and its cuts of on 1990 GMC Safari

I have a Safari 1987, i changed my spark plugs and my car is starting to stall and cut off on me when im driving not sure what the problem is. I was told its the fuel pump but not sure!

by in Rochester, NY on October 25, 2012
4 answers 5 comments
ANSWER by on October 25, 2012
ck fuel pressure or have it tested and post results or believe your mech
COMMENT by on October 25, 2012
fuel pressure as in Fuel lines, or fuel pump!
COMMENT by on October 25, 2012
Do you trust your mechanic? .......Fuel pressure is applied from the PUMP to the fuel lines and ultimatly to the injectors via a fuel rail. Pressure should be constant through entire system , up to the regulator/damper.See service manual for specs applicable to specific model/engine. Mass air flow meter or connections to it may also be an issue.
ANSWER by on October 25, 2012
this happened before or after changing spark plugs? possible crossed wires
COMMENT by on October 25, 2012
It just happened the first time. So I thought it was my sparkplugs changed it and it's still doing it. So im going to check my fuel pump
ANSWER by on October 26, 2012
WHAT ENGINE???? THROTTLE BODY INJECTION V/6? OR 2.5L4?
COMMENT by on October 26, 2012
v.6
COMMENT by on October 26, 2012
WHEN WAS LAST GOOD TUNE UP? DIST. CHECKED FOR BUSHING WEAR(SHAFT PLAY COMMON) NEW DIST. ROTOR,CAP & WIRES. FUEL FILTER CHANGED LATELY? OH YEA, THE FUEL PUMP COULD BE ACTING UP. TBI,UNIT IS GOING TO BE TOUGH TO CHECK PUMP PSI! WITHOUT PROPER TOOLS.
ANSWER by on January 11, 2013
We have a 95 GMC Safari and had this happen several times. Seems the Safari is known for burning up a cap and rotor pretty fast! Change the cap and rotor! My husband keeps a spare and has gotten really fast at it! It's really easy, even I can do it!