I have a 1990 Chevy Lumina-the air conditioning only comes out on the floor and defrost vacuum does not change the servos what is the fix?

Asked by Jul 29, 2012 at 04:15 PM about the 1990 Chevrolet Lumina 4 Dr STD Sedan

Question type: Maintenance & Repair

2 Answers

1,885

its vacuum controled , check vacuum hoses under hood to resivoir then into dash switch if ok dash switch is problem

1,315

I have a 1990 Lumina... as per the response of "455" above... I recently had the same problem and eventually found a vacuum leak under the hood near the cruise control solenoid where there is a junction "T" fitting. Repairing that connection, other ones popped up over the next week or two. The car is over 22 years old... things are getting rotten... there may be some more hoses that need to be carefully inspected and replaced. There are some hard plastic hoses as well that get brittle and crack. Some are covered with a black flexible plastic covering... and may hide the cracked plastic hose within. Listen carefully for "HIssssses"... squeeze rubber hoses good and listen for any changes or Hissessss... check the hose and fitting that goes behind the MAP sensor... sometimes the hose is cracked at the fitting itself... you may want to pull the hoses off their fittings to see if they fall apart in your fingers. There is a Big Ball under the left fender... it's a vacuum reservoir... there is a long vacuum hose/tube going to it from the connection "T" near the cruise solenoid... make sure you check it from end to end as well and make sure it's connected up snugly. i hope this helps... good luck... john b.

Your Answer

Add photo

Related Questions

Search Chevrolet Lumina Questions

Chevrolet Lumina Experts

#1 90V6RedHotLuminaEuro
90V6RedHotLuminaEuro
Reputation 1,180
#2 John Saffrahn
John Saffrahn
Reputation 1,060
#3 11jonny11
11jonny11
Reputation 930
View All

Related Models For Sale

Used Ford Taurus
257 Great Deals out of 18,913 listings starting at $1,499
Used Honda Accord
1,043 Great Deals out of 67,784 listings starting at $1,000
Used Chevrolet Camaro
354 Great Deals out of 31,326 listings starting at $2,200
Used Nissan Maxima
336 Great Deals out of 24,260 listings starting at $1,999
Used Chevrolet Cavalier
3 Great Deals out of 989 listings starting at $695
Used Toyota Camry
1,200 Great Deals out of 83,788 listings starting at $750
Used Buick LeSabre
15 Great Deals out of 1,931 listings starting at $1,588
Used Buick Century
847 listings starting at $2,300
Used Honda Civic
849 Great Deals out of 84,346 listings starting at $750

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.