periodic high idle 6.6 turbo

Asked by Jul 29, 2011 at 08:53 PM about the 2001 Chevrolet Silverado 2500HD Crew Cab 4WD

Question type: Maintenance & Repair

every once in a while i get a small pop noise from under the hood and my idle increases. this lasts for a few days and then goes away. when its doing it, my check engine light comes on and goes off intermittently and my shift points seem to change. i've tried to have the codes read but the guy tells me it's showing a mitsubishi code. does anybody have any suggestions?

3 Answers

2,815

what? did he check codes when engine light is on?

Check the intercooler piping. sounds like you may have a loose coupler. (my brother had the very same problem on his SAAB 9-3 Turbo)

5 out of 5 people think this is helpful.

yes, the light was on when he checked it. it left both of us scratching our heads.

Your Answer

Add photo

Related Questions

Silverado 2500HD

Looking for a Used Silverado 2500HD in your area?

CarGurus has 28,700 nationwide Silverado 2500HD listings starting at $2,295.

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
136 Great Deals out of 13,662 listings starting at $1,500
Used Ford F-250 Super Duty
477 Great Deals out of 42,814 listings starting at $2,850
Used Chevrolet Silverado 1500
2,679 Great Deals out of 149,056 listings starting at $1,800
Used Dodge Ram 2500
182 Great Deals out of 5,631 listings starting at $2,395
Used Chevrolet Silverado 2500
6 Great Deals out of 256 listings starting at $4,200
Used GMC Sierra 1500
1,166 Great Deals out of 58,044 listings starting at $2,495
Used Ford F-350 Super Duty
481 Great Deals out of 26,893 listings starting at $2,999
Used Ford F-150
3,395 Great Deals out of 205,576 listings starting at $1,273
Used Chevrolet Silverado 1500HD
14 Great Deals out of 284 listings starting at $4,938
Used Chevrolet Silverado 3500
33 Great Deals out of 633 listings starting at $6,200
Used Toyota Tundra
683 Great Deals out of 28,313 listings starting at $2,500

Used Cars For Sale

2017 Chevrolet Silverado 2500HD For Sale
2,615 listings starting at $27,425
2016 Chevrolet Silverado 2500HD For Sale
42 Great Deals out of 15,390 listings starting at $24,658
2015 Chevrolet Silverado 2500HD For Sale
72 Great Deals out of 2,150 listings starting at $19,995
2014 Chevrolet Silverado 2500HD For Sale
32 Great Deals out of 646 listings starting at $14,990
2013 Chevrolet Silverado 2500HD For Sale
23 Great Deals out of 1,112 listings starting at $8,905