I have chevy limina 1995. It's AC is not working though two times I used leackage detector and filled gas. It works for few hours and then stops. It consume too much gas, approximate one gallon per 10 mile. It's transmission is proper. Though it'sm run on road as there is no alternate to me. Can anybody help me for right direction for repairing so that I donot have to spend money improperly.
Jaldip

. Replace the spark plugs with the exact platinum plugs that came in the car (ACDelco only). Change platinum plugs every 45,000 miles.

. Replace the air filter, after cleaning the air box.

. Replace fuel filter.

. Read the following link, to improve gas mileage:

https://www.askmehelpdesk.com/cars-t...tml#post293582

. Read this link, to troubleshoot your A/C system:

https://www.askmehelpdesk.com/cars-t...ml#post1864159

Low side gauge pressure should be 36 psi for the 3.1L engine and 42 psi for the 3.8L engine.

High side gauge pressure should be 315 psi for the 3.1L engine and 325 psi for the 3.8L engine.