lt1 less power than normal and vibration
Thread Starter
Registered User
Joined: Mar 2011
Posts: 25
Likes: 0
lt1 less power than normal and vibration lt1 355 6,000 miles yesterday it started and ran great on the way to work then there was a little rain (which i don't think matters) before i left and when i started it to leave it was hard starting but started and idled fine. But whenever i would start climbing through the rpm range it doesn't have it's usual power and has an odd vibration to it as well...any ideas as to what it could be?
Possibly a dead cylinder. With the car idling, pull the fuel injector clips one at a time. If you get one where the idle does not change, you've found the cylinder not firing correctly.
For starters, you can check the spark plug to make sure it's not broken/burnt/fouled out, carefully check the spark plug wire to make sure it's not burnt/damaged. Plug the clip in of the possible bad cylinder and get a broom stick handle (or engine stethoscope if you have one), put it against the injector and put the other end against your ear and listen to see if it is actuating.
List your mods as well.
List your mods as well.
Thread Starter
Registered User
Joined: Mar 2011
Posts: 25
Likes: 0
355 forged bottom
advanced induction head cam intake package
walboro 255lph pump
Bosch 30lb injectors
msd 6al ignition
ngk tr55 spark plugs
Lpp longtube stainless headers
slp loudmouth II
high flow cats
10 bolt 3.73 rear
advanced induction head cam intake package
walboro 255lph pump
Bosch 30lb injectors
msd 6al ignition
ngk tr55 spark plugs
Lpp longtube stainless headers
slp loudmouth II
high flow cats
10 bolt 3.73 rear
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
I take it you aren't the one who installed it? It depends. I've never used one, but I think it is a plug and play harness, unless someone hacked your harness and soldered/butt connected it together.
Thread Starter
Registered User
Joined: Mar 2011
Posts: 25
Likes: 0
I though that was it when it first started happening but i left it in the garage all night and it was outside all day in the 90° weather i did just realize that after i replaced my oil pump drive there wasn't a good seal on the intake manifold and there was a small oil leak so i think that is my problem right there
