Chevrolet Forum - Chevy Enthusiasts Forums

Silverado, Sierra & Fullsize Pick-ups The Silverado & Sierra have been two of the best selling trucks in the US for decades, and is truly proven to be "like a rock".

2014 Chevy Silverado
Platform: Truck, GMT 400, 800, & 900
Old July 27th, 2015, 1:50 PM
How-Tos on this Topic
Last edit by: IB Advertising
See related guides and technical advice from our community experts:

Browse all: Powertrain Guides
Print Wikipost

1999 chev silverado 5.3 code P0171, P0172 and P0420

Thread Tools
 
Search this Thread
 
Old October 21st, 2020 | 10:18 PM
  #11  
Zwingsterboss's Avatar
Zwingsterboss
CF Beginner
 
Joined: Oct 2020
Posts: 1
Likes: 0
Default Po171 and po174 and po300
Originally Posted by MDTAHOE
Absoultly, But you may want to try to clean the mass air flow sensor first.
I have sprayed carb cleaner all over the intake and do not see any difference. Would this be the most common problem? My 2001 Yukon runs rough idling when it is stared in cold Temps it even stalls a few times before it stays running. Once it warms up and gets better but still has power loss on and off. What do you think?
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Uplander P0172 code
princej
Uplander
38
June 18th, 2019 6:30 PM
Chevy Cavalier 2002 2.2L code P0172 (P0420) engine flooding- where to start?
alishevah
General Tech
0
September 19th, 2014 1:13 PM
p0171 gone now p0172???????
zackm94
Cavalier
0
July 31st, 2014 1:04 PM
Trouble code P0172
xjchad
Uplander
4
June 29th, 2012 8:11 PM
p0172 code 1997 Silverado
foxracing254
Silverado, Sierra & Fullsize Pick-ups
10
November 27th, 2011 9:26 AM
Tags
Back to Subforum
Silverado, Sierra & Fullsize Pick-ups
View Next Unread
2012 Silverado 1500 4X4




Advanced Search

All times are GMT -5. The time now is 1:23 AM.