C5 Shuts off instantly
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7th Gear
Joined: Apr 2024
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C5 Shuts off instantly
2000 base c5 ls1 manual
a few days ago I was casually driving, I got to a stop light and when I went into neutral my car dropped to very low RPMs but they came back up. About 5 minutes later of cruising, 35-45 MPH, my car shut off. Battery still on, good reading on volts. After trying to start my car a few times, it starts and shuts off almost instantly. Only runs for 2-3 seconds. The only thing I’ve done is checked/cleaned all the grounds. Any info would help, thank you!
a few days ago I was casually driving, I got to a stop light and when I went into neutral my car dropped to very low RPMs but they came back up. About 5 minutes later of cruising, 35-45 MPH, my car shut off. Battery still on, good reading on volts. After trying to start my car a few times, it starts and shuts off almost instantly. Only runs for 2-3 seconds. The only thing I’ve done is checked/cleaned all the grounds. Any info would help, thank you!
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From: Cape Coral, Florida
Heel & Toe
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Thread Starter
7th Gear
Joined: Apr 2024
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I have an extra and since it’s a 2000, the process to swap it won’t be hard. Needs replacing anyways. Question, how do I test the relay and the fuel regulator.
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Heel & Toe
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A bad FPR would usually result in either too high or low pressure, but not zero psi.
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From: Cape Coral, Florida
Last edited by C5 Diag; Apr 5, 2024 at 11:35 AM.
Thread Starter
7th Gear
Joined: Apr 2024
Posts: 7
Likes: 0
2000 base c5 ls1 manual
a few days ago I was casually driving, I got to a stop light and when I went into neutral my car dropped to very low RPMs but they came back up. About 5 minutes later of cruising, 35-45 MPH, my car shut off. Battery still on, good reading on volts. After trying to start my car a few times, it starts and shuts off almost instantly. Only runs for 2-3 seconds. The only thing I’ve done is checked/cleaned all the grounds. Any info would help, thank you!
a few days ago I was casually driving, I got to a stop light and when I went into neutral my car dropped to very low RPMs but they came back up. About 5 minutes later of cruising, 35-45 MPH, my car shut off. Battery still on, good reading on volts. After trying to start my car a few times, it starts and shuts off almost instantly. Only runs for 2-3 seconds. The only thing I’ve done is checked/cleaned all the grounds. Any info would help, thank you!
update: after install of a new fuel pump, I confirmed that fuel was now getting to the rails and maintaining pressure. It’s dropped about 3-5 (LBS?) in a 2 hours so from what I read that is good. But to follow with more issues…
Once it started I let it sit for a few hours to eat then came back to it and as soon as I tried to start it, all lights came on, then I hit the ignition… No lights, no security, nothing. So I jacked my car up and tested the starter. It was receiving power from the main line so I went to buy one and walaaa she runs. Or so I thought. Now I have a low voltage sign and my windows would hardly go back up from being down all day. Since I have a battery warranty I will be replacing it soon and will come to update again. Thanks to everyone that has commented and helped me with this. I’m new to the LS/American platforms!