SPONSORED LINKS

Guzzles gas with AC on

Tiny
BROBB56
  • MEMBER
  • 2003 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 112,000 MILES
I have a 2003 chevy blazer. It guzzles gas when ac is on. Normal gas mileage with it off. Wat's wrong
Thursday, August 4th, 2011 AT 12:54 AM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You need to check a lot. Plugs, wires, fuel pressure and filter, air filter. Gas mileage has so many variables particularly with driving habits that it is difficult to pinpoint one item.

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, August 4th, 2011 AT 12:57 AM
Tiny
BROBB56
  • MEMBER
  • 3 POSTS
It was fine and then fuel pump went bad. Right after it guzzled gas with AC
Was this
answer
helpful?
Yes
No
Thursday, August 4th, 2011 AT 1:05 AM
Tiny
STEVE W.
  • MECHANIC
  • 13,470 POSTS
Pull the connector plug off of the AC clutch and see if the mileage still changes. This will rule out a bad compressor causing drag.
If the ONLY thing that was done was to replace the pump then I cannot think of any way they are related. Did this start IMMEDIATELY after the swap (like you drove it home and the AC caused low mileage)OR did it happen a week or two after?
Was this
answer
helpful?
Yes
No
Sunday, August 7th, 2011 AT 2:58 AM

Please login or register to post a reply.

Related Air Conditioner Content

Air Conditioner
GUIDE
Air Conditioner
Would you like to know how your vehicle’s air conditioner works? The system looks complicated, but it's really quite simple. Once you know how it delivers cold air you...
VIEW MORE

Sponsored links