hard to start

1994 CHEVROLET S-10

167,543 MILES • 4 CYL • 2WD • MANUAL

FREDBRYANT

MEMBER
1 POST
FOLLOW

i got a 1994 s10 2.2 it was runing fine but now hard to start it like geting to much fule or the chock is not opening and blowing out black smoke out the tailpipe it got a new plugs wires pvc gas filter when i do get it runing i give it some gas and it runes good but when i let off on it it like the chock is not opening up and when i drive it on the street or hiway it runs good

Jul 20, 2011 at 4:39 PM

ASEMASTER6371

CAR REPAIR CONTRIBUTOR
52,796 POSTS

there is a sensor called a map sensor that may be failing riching up the mixture. it would throw a code.
also, make sure one of your injectors are not leaking fuel with out being commanded to open.

Roy

Jul 20, 2011 at 4:52 PM

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.