1999 Ford Escort Check light on and gas mileage is awful

1999 FORD ESCORT
Avatar
TLM8683
  • MEMBER
  • 1 POST
Engine Cooling problem
1999 Ford Escort 4 cyl Front Wheel Drive Automatic

My check light came on about 3 days ago and the code said somthing like 'cooling temp.' and ever since then my gas mileage is awful. i FILL UP every day. how do i fix it. i have checked all the fluid levels and they are all normal.
Jan 13, 2010 at 9:14 PM
Advertisement
Avatar
BILLYMAC
  • CAR REPAIR CONTRIBUTOR
  • 2,204 POSTS
Hi
you need to replace the coolant temp sensor.
this sensor tells your pcm the eng temp. it mixes fuel according to the info it gets from this sensor.

if it is bad it causes the pcm to mix too much fuel. this sensor is located near the tstat housing. it will be a two or three wire sensor. not to be confused with the single wire temp sensor that tells your guage what the temp is
Jan 13, 2010 at 9:26 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.