Close
Q:

Why does the A/C change modes, from panel to defrost all on it's own? on 2003 Mercury Grand Marquis

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
At idle A/C blows through the panel. As I roll down the road the A/C will start blowing out the defrost all on it's own. WHY?!?!?
(1) Answer
| |
loss of vac to controller. ck vac lines under hood for cracks or breaks. if there ok ck under dash if unable to find have ssmoke test done to determine leaks
Qualified Local Mercury Shops
Qualified Mercury Shops For This Repair