89 gmc sierra 2500 5.7 the check engine light blinks rapidly with the engine running or not. What does it mean?

5

Asked by Jul 14, 2014 at 11:35 PM about the GMC Sierra 2500HD

Question type: Maintenance & Repair

Have replaced plugs, wires, dist cap and rotor, and the pcv valve. Valves clatter on
acceleration. Check engine light flashes continuously when ignition is on with engine
running or not

1 Answer

45

The check engine light is flashing a code so count the flashes and look it up

Your Answer

Add photo

Related Questions

Search GMC Sierra 2500HD Questions

GMC Sierra 2500HD Experts

#1 iEATricers
iEATricers
Reputation 120
#2 jeremyd12
jeremyd12
Reputation 110
#3 Markguidry856
Markguidry856
Reputation 100
View All

Related Models For Sale

Used Chevrolet Silverado 2500HD
326 Great Deals out of 28,525 listings starting at $990
Used GMC Sierra 1500
789 Great Deals out of 67,999 listings starting at $1,700
Used Ford F-250 Super Duty
330 Great Deals out of 43,932 listings starting at $1,450
Used GMC Sierra 3500HD
48 Great Deals out of 3,845 listings starting at $9,995
Used Dodge Ram 2500
116 Great Deals out of 5,079 listings starting at $2,999
Used Chevrolet Silverado 1500
1,935 Great Deals out of 182,334 listings starting at $999
Used Ram 2500
132 Great Deals out of 29,032 listings starting at $7,490
Used Ford F-150
2,091 Great Deals out of 192,324 listings starting at $290
Used Chevrolet Silverado 3500HD
98 Great Deals out of 9,993 listings starting at $7,500
Used Ford F-350 Super Duty
380 Great Deals out of 24,015 listings starting at $3,000
Used GMC Sierra 2500
167 listings starting at $3,195
Used Toyota Tundra
415 Great Deals out of 34,265 listings starting at $1,950
Used GMC Sierra 1500HD
6 Great Deals out of 115 listings starting at $4,995
Used Chevrolet Silverado 2500
9 Great Deals out of 262 listings starting at $3,495
Used GMC Yukon
419 Great Deals out of 20,455 listings starting at $1,495

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.