I HAVE A 1999 MERCURY GRAND MARQUIS IT IS BLOWING AC BUT WHEN I SPEED UP IT BROG DOWN AND BARELY BLOW IS IT ONE OF MY VACCUM

Asked by Jun 10, 2013 at 12:20 PM about the 1999 Mercury Grand Marquis 4 Dr LS Sedan

Question type: Maintenance & Repair

I  NEED  TO  FIND  OUT  WHERE  ARE  MY  AC  VACCUM  LOCATED  AT  AND  
COULD  I  LOOK  AT  A  DIOGRAM  OF  IT  1999  MERCURY  GRAND  MARQUIS

3 Answers

here's something...'bout half the picture...did you need a picture?

2 out of 2 people think this is helpful.
26,315

If it is a vacuum problem it will divert to defrost. Is that what it is doing?

4 out of 4 people think this is helpful.

A cracked vacuum canister will cause this. Looks like a black softball w two vacuum hoses going to it

2 out of 2 people think this is helpful.

Your Answer

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