Soileau
Junior Member
- Joined
- Mar 6, 2016
- Posts
- 21
- Reaction score
- 13
- Location
- Louisiana
- Ram Year
- 2015 R/T Sport
- Engine
- Hemi 5.7L
(2015 Ram Sport R/T, reg. cab, 5.7L with tune from Greene's racing, 8 speed, 3.92 gears, 2WD, still on 22" wheels) This is not a major issue that is leaving me without a truck and if I wasn't into SPEED, it would probably never happen but it's an issue that I'd like to resolve.
If I take off from a dead stop with the pedal to the metal, (like to try to see what it does in the 1/4 mile or to race), the tires spin and as it catches traction, the transmission may try to shift or maybe does shift, then the truck goes into what I believe is called limp mode. It's when the rotary shift stays in drive and it's stuck in 3rd or fourth gear. Wont go to park or reverse. The knob moves but the light stays on Drive. Well you cant kill the truck normally so what I do is put emergency brake on and if I have someone with me have them put their foot on the brake, pop the hood and I pull a run relay to kill trhe engine. Disconnect one of the battery posts and wait a couple of minutes. Hook battery back up, make sure relay is back in, turn rotary shift to park, crank up truck and all is back to normal. I don't remember if the "check engine" light is on when it is in limp but I want to say it isn't because if it was it would get my attention and I would check the code with my tuner but I never think about checking the code which is why I do not think the check engine light is on.
This doesn't happen often simply because since it happened the first time I dont take off like that often but if I would I'd say it would go into limp every 2nd time I try to race with someone. Anyone experience something similar??
(other than what is mentioned at the beginning of post the truck has only a few bolt ons, nothing major like a hot cam or supercharger or anything)
If I take off from a dead stop with the pedal to the metal, (like to try to see what it does in the 1/4 mile or to race), the tires spin and as it catches traction, the transmission may try to shift or maybe does shift, then the truck goes into what I believe is called limp mode. It's when the rotary shift stays in drive and it's stuck in 3rd or fourth gear. Wont go to park or reverse. The knob moves but the light stays on Drive. Well you cant kill the truck normally so what I do is put emergency brake on and if I have someone with me have them put their foot on the brake, pop the hood and I pull a run relay to kill trhe engine. Disconnect one of the battery posts and wait a couple of minutes. Hook battery back up, make sure relay is back in, turn rotary shift to park, crank up truck and all is back to normal. I don't remember if the "check engine" light is on when it is in limp but I want to say it isn't because if it was it would get my attention and I would check the code with my tuner but I never think about checking the code which is why I do not think the check engine light is on.
This doesn't happen often simply because since it happened the first time I dont take off like that often but if I would I'd say it would go into limp every 2nd time I try to race with someone. Anyone experience something similar??
(other than what is mentioned at the beginning of post the truck has only a few bolt ons, nothing major like a hot cam or supercharger or anything)
