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

2,895

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 25,920 nationwide Silverado 2500HD listings starting at $1,250.

ZIP:

Search Chevrolet Silverado 2500HD Questions

Chevrolet Silverado 2500HD Experts

#1 Steven Loeffler
Steven Loeffler
Reputation 440
#2 FordNut
FordNut
Reputation 280
#3 Tom Demyan
Tom Demyan
Reputation 270
View All

Related Models For Sale

Used GMC Sierra 2500HD
124 Great Deals out of 13,693 listings starting at $2,650
Used Ford F-250 Super Duty
378 Great Deals out of 46,992 listings starting at $400
Used Chevrolet Silverado 1500
2,014 Great Deals out of 157,318 listings starting at $1,995
Used Dodge Ram 2500
154 Great Deals out of 5,266 listings starting at $2,500
Used GMC Sierra 1500
888 Great Deals out of 64,187 listings starting at $2,275
Used Chevrolet Silverado 2500
10 Great Deals out of 283 listings starting at $3,995
Used Ford F-150
2,425 Great Deals out of 209,613 listings starting at $895
Used Ford F-350 Super Duty
390 Great Deals out of 26,985 listings starting at $2,495
Used Chevrolet Silverado 1500HD
18 Great Deals out of 279 listings starting at $3,950
Used Toyota Tundra
555 Great Deals out of 31,674 listings starting at $2,800
Used Chevrolet Silverado 3500
19 Great Deals out of 609 listings starting at $5,995

Used Cars For Sale

2017 Chevrolet Silverado 2500HD For Sale
12,526 listings starting at $25,178
2016 Chevrolet Silverado 2500HD For Sale
27 Great Deals out of 3,298 listings starting at $24,900
2015 Chevrolet Silverado 2500HD For Sale
44 Great Deals out of 2,043 listings starting at $19,500
2014 Chevrolet Silverado 2500HD For Sale
16 Great Deals out of 574 listings starting at $11,041
2013 Chevrolet Silverado 2500HD For Sale
8 Great Deals out of 985 listings starting at $7,200