my engine light blinks when push the gas pedal, it doesnt idle right when idling..sounds like its trying to breath..ive been using octane 91 for a long time now..what do u think is the problem?

Asked by Apr 07, 2012 at 11:05 AM about the 2009 Chevrolet Silverado 2500HD

Question type: Maintenance & Repair

6 Answers

2,815

that means ur truck is misfiring and it is damaging the catalytic converter get codes pulled from autozone and that will tell u which cyl (s) r missing then pull coil packs on those cylinders to see if u get spark if good solid blue spark than listen to the injector if they r opening then pull the plugs and look at them to see if they are still good if not then replace

1 out of 1 people think this is helpful.
85

i would check the plugs first its eazy

1 out of 1 people think this is helpful.

I took it to dealer, they replace the oxygen sensor, engine light shut off for a week, now its doing the same thing..engine light blinking..

1,685

You have a misfire, you need to have your ignition system checked out.

10

Mine did the same.... computor gave a random misfire, after new plugs, wires and O2 sensor at one shop, another shop determined it was the egr valve, this solved the issue. Very easy to replace yourself in 5 minutes, $150.00 part at Napa

1 out of 1 people think this is helpful.

Yes, that was what had happen.. been running great ever since, thanks

Your Answer

Add photo

Related Questions

Silverado 2500HD

Looking for a Used Silverado 2500HD in your area?

CarGurus has 29,170 nationwide Silverado 2500HD listings starting at $2,998.

ZIP:

Search Chevrolet Silverado 2500HD Questions

Chevrolet Silverado 2500HD Experts

#1 Steven Loeffler
Steven Loeffler
Reputation 420
#2 FordNut
FordNut
Reputation 280
#3 Tom Demyan
Tom Demyan
Reputation 260
View All

Related Models For Sale

Used GMC Sierra 2500HD
123 Great Deals out of 13,769 listings starting at $1,500
Used Ford F-250 Super Duty
480 Great Deals out of 42,555 listings starting at $2,995
Used Chevrolet Silverado 1500
2,600 Great Deals out of 149,097 listings starting at $1,800
Used Dodge Ram 2500
175 Great Deals out of 5,612 listings starting at $2,900
Used Chevrolet Silverado 3500HD
128 Great Deals out of 8,863 listings starting at $8,995
Used GMC Sierra 1500
1,144 Great Deals out of 58,007 listings starting at $995
Used Ford F-350 Super Duty
457 Great Deals out of 26,742 listings starting at $3,900
Used Ford F-150
3,377 Great Deals out of 203,971 listings starting at $1,273
Used GMC Sierra 3500HD
74 Great Deals out of 4,017 listings starting at $8,995
Used Toyota Tundra
662 Great Deals out of 28,228 listings starting at $1,599

Used Cars For Sale

2017 Chevrolet Silverado 2500HD For Sale
2,177 listings starting at $28,689
2016 Chevrolet Silverado 2500HD For Sale
45 Great Deals out of 16,230 listings starting at $21,991
2015 Chevrolet Silverado 2500HD For Sale
64 Great Deals out of 2,144 listings starting at $17,995
2014 Chevrolet Silverado 2500HD For Sale
29 Great Deals out of 640 listings starting at $14,990
2013 Chevrolet Silverado 2500HD For Sale
20 Great Deals out of 1,109 listings starting at $9,995