what is Code P0420

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What is the fix for Code P0420 on a 2002 GMC 4X4 4.8L

2002GMC4X4 in Grandville MI

May 15, 2012

1 Reply

What are the best GMC repair shops?

RepairPal Certified shops can diagnose and repair your 2002 GMC Sierra 1500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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Tuffy Tire & Auto Service Center - Grandview

4.6

(87)

2.39 mi

1524 W 5th Ave

Columbus, OH

Closed

Opens 8:00 AM Thu

Call

Excite Auto Repair & Towing

4.4

(15)

5.94 mi

3430 Westerville Road

Columbus, OH

Closed

Opens 9:00 AM Thu

Call

All In Auto Service

4.7

(36)

6.56 mi

5200 Fisher Road

Columbus, OH

Closed

Opens 8:00 AM Thu

Call

Tuffy Tire & Auto Service - Grove City

4.3

(525)

6.67 mi

2131 Stringtown Rd

Grove City, OH

Closed

Opens 7:30 AM Thu

Call

Blackstone Complete Auto Care

(39)

6.77 mi

4800 Sinclair Road

Columbus, OH

Closed

Opens 9:00 AM Thu

Call

Boyd's Tire & Service - Columbus

4.7

(192)

7.23 mi

5263 Godown Rd

Columbus, OH

Closed

Opens 8:00 AM Thu

Call

See All 30 Locations

Tuffy Tire & Auto Service Center - Grandview

4.6

(87)

2.39 mi

1524 W 5th Ave

Columbus, OH

Closed

Opens 8:00 AM Thu

Call

Excite Auto Repair & Towing

4.4

(15)

5.94 mi

3430 Westerville Road

Columbus, OH

Closed

Opens 9:00 AM Thu

Call

All In Auto Service

4.7

(36)

6.56 mi

5200 Fisher Road

Columbus, OH

Closed

Opens 8:00 AM Thu

Call

Tuffy Tire & Auto Service - Grove City

4.3

(525)

6.67 mi

2131 Stringtown Rd

Grove City, OH

Closed

Opens 7:30 AM Thu

Call

Blackstone Complete Auto Care

(39)

6.77 mi

4800 Sinclair Road

Columbus, OH

Closed

Opens 9:00 AM Thu

Call

Boyd's Tire & Service - Columbus

4.7

(192)

7.23 mi

5263 Godown Rd

Columbus, OH

Closed

Opens 8:00 AM Thu

Call

See All 30 Locations

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Can't get any cabin fresh air the blowers will not turn on

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Tuffy Tire & Auto Service Center - Grandview

Excite Auto Repair & Towing

All In Auto Service

Tuffy Tire & Auto Service - Grove City

Blackstone Complete Auto Care

Boyd's Tire & Service - Columbus

Tuffy Tire & Auto Service Center - Grandview

Excite Auto Repair & Towing

All In Auto Service

Tuffy Tire & Auto Service Center - Grandview

Excite Auto Repair & Towing

All In Auto Service

Tuffy Tire & Auto Service - Grove City

Blackstone Complete Auto Care

Boyd's Tire & Service - Columbus

Tuffy Tire & Auto Service Center - Grandview

Excite Auto Repair & Towing

All In Auto Service