stalling

1991 CHEVROLET S-10
172,089 MILES
Avatar
RON7769
  • MEMBER
  • 1 POST
I have replaced map tps ignition module injectors and checked iac operation . As long as the vac line is off the truck will start and kind of run as soon as i hook it up it stops running .why is this ?
Image (Click to enlarge)
Attached Media
May 11, 2013 at 1:47 PM
Advertisement
Avatar
ASEMASTER6371
  • CAR REPAIR CONTRIBUTOR
  • 52,796 POSTS
i will generalize since you provided no engine size

could be a vacuum leak under the throttle body, iac motor, how did you check it???

is the check engine light on??

Roy
Aug 21, 2018 at 3:27 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.