2001 C5 start problem
Thread Starter
Heel & Toe
Joined: Nov 2019
Posts: 16
Likes: 2
From: New Castle, DE
2001 C5 start problem
I bought my ls1 at 44k miles 3 months ago. it started fine on Sunoco gas. I switched to shell 93 and not long after it acted like the fuel pump check valve was bad or I had a leaky injector (coincidence?). it cranked fine but then conked out right away. I've been playing with the throttle to get it to start and run like when I bought it. I just wanted to ask for a quick cure before I have to do fuel psi leakdown testing. thanks for any help.
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,412
Likes: 3,964
From: Cape Coral, Florida
Welcome to the Forum and unfortunately there are no "quick cures"...it takes some diagnosing so you're not changing every part under the sun needlessly...and then hope you get lucky...you always look for any DTC's and if you don't have a scan tool you can use the DIC to pull up any "codes" you may have !!
Safety Car
Joined: Jan 2001
Posts: 4,981
Likes: 497
From: Hilton NY
