Engine Missing when under a load
Thread Starter
Le Mans Master
Joined: Mar 2007
Posts: 5,376
Likes: 11
From: Texas, Republic of Texas/ Founding Member NDCC
Engine Missing when under a load
Hey Bill Curlee,
I had to start a new thread ,,the other one I posted this info to has disappeared.
Hey Bill,
My 03 is giving me a little, no a big issue,,,it appears to be a ground according to the last Motorsport shop that looked at it.
It is fairly ok at idle and cruising but as soon as I put any load on it it feels like the old days when it would flood out and you let off and after awhile it clears up somewhat and you can cruise ok. The shop said the drivers side bank is going lean. They checked and replaced Plugs, Plug Wires, installed insulator boots around all plug wires so the don't melt on the headers, check the tune,did a leak down test, switched out coil packs, switched out injectors, checked engine grounds, and replaced fuel,,all to no avail,,it was getting very expensive so I pulled it from the shop so I could maybe do some looking on my own,,I read on here that the injector wiring where it runs to the back of the engine on drivers side had a bracket on the stock fuel rail where the electric lines would rub a whole in it and short out,,however i do not have those fuel rails any longer, mine has new fuel rails and there isn't anything to rub on, of course i guess that could still be the issue after all those wires are 10 years old and for 9 years probably were rubbing on that are of the fuel rail bracket.
As of 1-1-13, my engine is LS1 all forged pistons , rods, alum block, etc, I have an A&A Vortec V3 SI super charger with a 3.4 pulley, large cam 232/236/630 lift/112 lsa,10 ov lap, I also have the Kenny Bell Boost a Pump, and the A&A 800hp fuel system, the boost a pump is wired to put a continuous 17 volts out. At WOT the boost is at 10lbs.
We are doing a repair Get together Saturday morning at one of our club members house and would like to get some ideas where to go next,,two of our guys are electrical intelligent, but were wondering if you have ran across anything that may be simple to check without having to tear the car all apart. Oh one other note,,My small radiator hose that goes from the right side top radiator to the small inlet at the drivers side head was rubbing on the electric water pump and wore a whole in it leaking antifreeze down in front,,not sure if this had anything to do with it or not, but the motorsport place said they doubted it.
Thank you for taking the time to read.
I had to start a new thread ,,the other one I posted this info to has disappeared.
Hey Bill,
My 03 is giving me a little, no a big issue,,,it appears to be a ground according to the last Motorsport shop that looked at it.
It is fairly ok at idle and cruising but as soon as I put any load on it it feels like the old days when it would flood out and you let off and after awhile it clears up somewhat and you can cruise ok. The shop said the drivers side bank is going lean. They checked and replaced Plugs, Plug Wires, installed insulator boots around all plug wires so the don't melt on the headers, check the tune,did a leak down test, switched out coil packs, switched out injectors, checked engine grounds, and replaced fuel,,all to no avail,,it was getting very expensive so I pulled it from the shop so I could maybe do some looking on my own,,I read on here that the injector wiring where it runs to the back of the engine on drivers side had a bracket on the stock fuel rail where the electric lines would rub a whole in it and short out,,however i do not have those fuel rails any longer, mine has new fuel rails and there isn't anything to rub on, of course i guess that could still be the issue after all those wires are 10 years old and for 9 years probably were rubbing on that are of the fuel rail bracket.
As of 1-1-13, my engine is LS1 all forged pistons , rods, alum block, etc, I have an A&A Vortec V3 SI super charger with a 3.4 pulley, large cam 232/236/630 lift/112 lsa,10 ov lap, I also have the Kenny Bell Boost a Pump, and the A&A 800hp fuel system, the boost a pump is wired to put a continuous 17 volts out. At WOT the boost is at 10lbs.
We are doing a repair Get together Saturday morning at one of our club members house and would like to get some ideas where to go next,,two of our guys are electrical intelligent, but were wondering if you have ran across anything that may be simple to check without having to tear the car all apart. Oh one other note,,My small radiator hose that goes from the right side top radiator to the small inlet at the drivers side head was rubbing on the electric water pump and wore a whole in it leaking antifreeze down in front,,not sure if this had anything to do with it or not, but the motorsport place said they doubted it.
Thank you for taking the time to read.
