Will my bad cluster cause the heat not to work? No fan no noise at all

Asked by GuruCGGBC Mar 17, 2019 at 02:49 PM about the 2002 Chevrolet Avalanche

Question type: Maintenance & Repair

1 Answer
27,650

oilyspill answered 5 years ago

Note the diagram. I can only help with testing. See the two fuses at top of diagram, check those fuses. Also check voltage at fuses, use a test light. The fuse on the right side of diagram is hot all the time and is for high speed, only. The fuse on the left is for lower speeds and goes hot with key on. At the blower motor, key on, hvac on, purple wire is voltage, black wire is ground, check them both. If good voltage and ground with no blower action, suspect the blower motor. Any hvac trouble codes?

Mark helpful

Your Answer:

Related Questions

Shortcuts

Search Chevrolet Avalanche Questions

CarGurus Experts

  • #1
    sverden
    Reputation
    1,230
  • #2
    Mark Weiner
    Reputation
    570
  • #3
    GuruLW9BX
    Reputation
    530
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
222 Great Deals out of 5,872 listings starting at $2,975
Used Chevrolet Tahoe
11 Great Deals out of 891 listings starting at $12,900
Used Cadillac Escalade EXT
8 listings starting at $12,300
Used GMC Sierra 1500
132 Great Deals out of 6,515 listings starting at $3,975
Used Ford F-150
320 Great Deals out of 13,991 listings starting at $1,712
Used Chevrolet Suburban
10 Great Deals out of 583 listings starting at $10,900
Used Cadillac Escalade
15 Great Deals out of 427 listings starting at $9,995
Used Chevrolet Silverado 2500HD
28 Great Deals out of 1,243 listings starting at $9,500
Used Toyota Tundra
30 Great Deals out of 1,367 listings starting at $6,255
Used GMC Yukon
14 Great Deals out of 904 listings starting at $4,555
Used Chevrolet Camaro
14 Great Deals out of 282 listings starting at $5,995
Used Chevrolet Corvette
22 Great Deals out of 1,084 listings starting at $15,000
Used Dodge RAM 1500
5 Great Deals out of 72 listings starting at $3,000

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. Content will be removed if CarGurus becomes aware that it violates our policies.