LS3 Power surge
07-09-2019 | 09:37 PM
#1
Thread Starter
Teching In
Joined: Mar 2019
Posts: 29
Likes: 3
LS3 Power surge Hello all
I'm not sure where to put this so I'm going to put it in 2 places,
I installed a crate LS 3 430 HP connect and Cruise into my 1986 C 10, runs great plenty of power runs smooth and decent mileage. Typically you think great as I did until the other day I took it over to the coast, its a 35 mile trip with hard curves inclines and declines, after about 25 miles of this drive, decreasing the accelerator as I enter the turn and advancing the accelerator out of the turns I noticed my power was reduced and began surging as I tried to accelerate out of the turns. There were no other symptoms other than the power surge and sluggish decrease in power. It continued running this way for the final 10 miles, got to my friends house turned it off it sat for about 20 minutes I started it back up it ran perfectly fine, we went around town everything was back to normal until left. Back on the windy drive where again about 25 miles decreasing the accelerator in and advancing the accelerator out of the turns it again lost power became sluggish and began surging in and out of power upon acceleration, got home shut it off for a couple minutes started back up and its been running great with no power loss or power surges as I normally drive around town, the only difference is that I'm not on that road working the accelerator in and out of the turns? does anyone have an idea what this could be?
I'm not sure where to put this so I'm going to put it in 2 places,
I installed a crate LS 3 430 HP connect and Cruise into my 1986 C 10, runs great plenty of power runs smooth and decent mileage. Typically you think great as I did until the other day I took it over to the coast, its a 35 mile trip with hard curves inclines and declines, after about 25 miles of this drive, decreasing the accelerator as I enter the turn and advancing the accelerator out of the turns I noticed my power was reduced and began surging as I tried to accelerate out of the turns. There were no other symptoms other than the power surge and sluggish decrease in power. It continued running this way for the final 10 miles, got to my friends house turned it off it sat for about 20 minutes I started it back up it ran perfectly fine, we went around town everything was back to normal until left. Back on the windy drive where again about 25 miles decreasing the accelerator in and advancing the accelerator out of the turns it again lost power became sluggish and began surging in and out of power upon acceleration, got home shut it off for a couple minutes started back up and its been running great with no power loss or power surges as I normally drive around town, the only difference is that I'm not on that road working the accelerator in and out of the turns? does anyone have an idea what this could be?
07-11-2019 | 05:36 PM
#3
Joined: Mar 2003
Posts: 10,244
Likes: 1,530
From: The City of Fountains
What tank is in this truck?
Andrew
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KW Baraka (07-12-2019)
07-12-2019 | 11:25 AM
#4
07-12-2019 | 09:34 PM
#5
Thread Starter
Teching In
Joined: Mar 2019
Posts: 29
Likes: 3
you are correct I reinstalled the OE tank, although I knew of the pick up problems with this I was under the impression if fuel was above 1/4 full I would see no fuel pick up issues, I have had pick up issues on my sloped driveway when I'm below 1/8 tank the tell sign was clear engine stall and dies, once I level off it picks up again there was no power surge it just dies.On the trip I'm talking of the tank was over .75 full no chance for the pickup to expose. I thought?
thanks for all your help,,
thanks for all your help,,
07-14-2019 | 11:33 AM
#6
Joined: Mar 2003
Posts: 10,244
Likes: 1,530
From: The City of Fountains
you are correct I reinstalled the OE tank, although I knew of the pick up problems with this I was under the impression if fuel was above 1/4 full I would see no fuel pick up issues, I have had pick up issues on my sloped driveway when I'm below 1/8 tank the tell sign was clear engine stall and dies, once I level off it picks up again there was no power surge it just dies.On the trip I'm talking of the tank was over .75 full no chance for the pickup to expose. I thought?
thanks for all your help,,
thanks for all your help,,
Andrew