So lately my truck has been surging a little bit. Usually does it when I come to a stop or if I let it idle for a while. I use diesel Kleen every fill up. I've heard that running ATF in the fuel will help this issue. Just changed the fuel filter last week. It's not surging bad as in the RPMS drop, but just enough to be noticeable. Anyone run ATF in their LB7? Thanks for any input
LB7 slight surging
- Thread starter HASTINGSRJ
- Start date
Yes I have run atf in lb7.
It seemed like filling the filter with atf then running for 45 seconds then let the truck sit overnight.
Do it hot then start it cold.
I have had some success with this.
Good luck
from mobile
It seemed like filling the filter with atf then running for 45 seconds then let the truck sit overnight.
Do it hot then start it cold.
I have had some success with this.
Good luck
from mobile
The lly lbz and lmm injectors have an o ring that seals the solenoid. Atf does damage that be careful bud
from mobile
didn't know that. Thanks for the info. Im 148k on stock injectors so there bound to go sometime soon... don't want to help them go though.
I think if it doesn't lay in it it may be ok..
I had a customers set apart cleaning them.....guy decided he had a whole tank of heating oil minus well use it...
I used atf to clean them....o ring were junk. It was 3 days getting replacements. Injectors all still workin great 2 years later
from mobile
I had a customers set apart cleaning them.....guy decided he had a whole tank of heating oil minus well use it...
I used atf to clean them....o ring were junk. It was 3 days getting replacements. Injectors all still workin great 2 years later
from mobile
I only use a quart when I do use it. I figure with a 20 gallon fill up it probably does nothing but it gives me the warm and fuzzies.
Lots of detergents in it.
When I worked at gm engineering also told me atf was ok on lb7 but not the newer ones. I thouggt meh what do they know. But after the oring incident I have been gun shy.
Still not totally againt it just sharing my experiences
from mobile
When I worked at gm engineering also told me atf was ok on lb7 but not the newer ones. I thouggt meh what do they know. But after the oring incident I have been gun shy.
Still not totally againt it just sharing my experiences
from mobile
I use about 4 oz of Marvel Mystery Oil and about the same of Diesel Kleen each tank on my LB7 and LBZ. Could this cause a problem?
filled up yesterday, added my usual 8oz of diesel clean, and a qt of tranny fluid. She's running smooth now. Thanks for all the input guys, I appreciate it. :thumb: