Bad Injectors?

Welder

New member
May 9, 2020
14
0
1
Being told by Dealer I have 2 bad injectors. Could Cleaning help and if so how/what to use. I noticed no miss they told me a month ago I had an injector going bad. Took back to dealer last week for different issue and check engine light came on as I pulled in now they say I have 2 bad injectors. 2011 GMC
 

Welder

New member
May 9, 2020
14
0
1
Being told by Dealer I have 2 bad injectors. Could Cleaning help and if so how/what to use. I noticed no miss they told me a month ago I had an injector going bad. Took back to dealer last week for different issue and check engine light came on as I pulled in now they say I have 2 bad injectors. 2011 GMC
 

2004LB7

Super Moderator
Staff member
Dec 15, 2010
7,108
2,213
113
Norcal
Need a little more information. Balance rate are off? Too much return? Leaking? Give us something more to work with

If you want to try some cleaners. The GM injector cleaner along with the process is supposed to be about as good as it gets. Otherwise just run some name brand stuff in the tank. Most of the time it only gets you a little more life and you may as well start saving up. Not that it is hard to replace but be prepared to change them anyways
 

Ron Nielson

Active member
Oct 11, 2009
773
147
43
Berryton, KS
It would be helpful to know what tests were run to determine that 2 injectors are bad. I'm assuming you know which 2 they are? Specific results on the bad and the good ones may tell you a lot. .
 

Welder

New member
May 9, 2020
14
0
1
It would be helpful to know what tests were run to determine that 2 injectors are bad. I'm assuming you know which 2 they are? Specific results on the bad and the good ones may tell you a lot. .
Will see if i can get info
 

Welder

New member
May 9, 2020
14
0
1
It would be helpful to know what tests were run to determine that 2 injectors are bad. I'm assuming you know which 2 they are? Specific results on the bad and the good ones may tell you a lot. .
Balance rates 1/-.42, 2/.94, 3/-.31, 4/.53, 5/-1.63, 6/-.06, 7/.33, 8/.55
 

Welder

New member
May 9, 2020
14
0
1
Need a little more information. Balance rate are off? Too much return? Leaking? Give us something more to work with

If you want to try some cleaners. The GM injector cleaner along with the process is supposed to be about as good as it gets. Otherwise just run some name brand stuff in the tank. Most of the time it only gets you a little more life and you may as well start saving up. Not that it is hard to replace but be prepared to change them anyways
Balance rates 1/-.42, 2/.94, 3/-.31, 4/.53, 5/-1.63, 6/-.06, 7/.33, 8/.55