1998 Volvo S70 New Spark Plugs Mass Air Flow Sensor Gas Cap Car

1998 VOLVO S70
187,000 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
My question The Volvo has new spark plugs, mass air flow sensor and gas cap. The car stalls out, stops completely after pausing at a stop sign. Upon recranking or starting the car, lots of white smoke comes out of the tail pipe. Is this a sign of water in the engine and or gasoline tank? Please tell me what would cause the car to choke out/ loose power when the foot is lifted off of the excellerator. Thank you
Jan 14, 2013 at 3:16 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
As far as the idle problem, that can be caused by things like a vacuum leak, a bad idle air control valve... As far as the white smoke, that usually indicates a bad head gasket. When coolant gets into the combustion chamber, it burns white. Check the coolant level to see if it is getting low. Check motor oil to make sure no coolant is getting into the oil.
Jan 14, 2013 at 3:23 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
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.