![]() |
|
![]() |
#1 |
Registered User
![]() Join Date: Jun 2006
Location: Maple Valley, WA
Posts: 1,913
|
Re: Bogging at lower rpms
I would check to see if the torque convertor lockup switch is working properly.
|
![]() |
![]() |
![]() |
#2 |
Registered User
Join Date: Jun 2010
Location: Las Vegas, Nv
Posts: 312
|
Re: Bogging at lower rpms
Switch in the tranny is less than 6 months old. Had a problem with it, and during the time the switch was bad I had a toggle switch to turn it off completely, let it control on its own, or lock it in place. With it turned off completely, I still had the problem. Could the converter be able to lock up funny even with the switch disengaged?
__________________
1995 Suburban K2500 454.....off road & towing 1999 Astro, work van 2006 Silverado 2wd 5.3 w/4.5" lift and 33s |
![]() |
![]() |
![]() |
#3 |
Registered User
Join Date: Jun 2010
Location: Las Vegas, Nv
Posts: 312
|
Re: Bogging at lower rpms
So, I've got a new fuel pump now. So fuel pressure is definitely not my issue. However, I was going over my datalog again, and think I may have discovered my problem. It seems that the knock sensor is picking up a lot of knocks at idle during the times where it won't accel nicely. But then when it does accel nicely, the knock sensor picks up at most 1 or 2 knocks in a several minute period. I am going to datalog again today to confirm this. I realize knocks (or what the sensor believes are) are very hard to diagnose. Anyone have any ideas on why I could be getting knocks sometimes, but not others?
__________________
1995 Suburban K2500 454.....off road & towing 1999 Astro, work van 2006 Silverado 2wd 5.3 w/4.5" lift and 33s |
![]() |
![]() |
![]() |
Bookmarks |
|
|