C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Stalling- vacuum?

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Old Mar 14, 2024 | 03:47 PM
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GageC4
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Default Stalling- vacuum?

95 auto lt1. After having done a ton of work to this thing it can finally turn over and run. It still has old gas in it, so I’m assuming that plays a part in having to try to crank it 3-4 times before it starts. When I started it up for the first few times it would die out after a few seconds. Upon replacing some obvious vacuum lines it ran fine. It could idle and you could rev it and it sounded good (To my knowledge). But now after about a week or two (not driving yet) it stalls on me. I get it started and it idles alright, it may be fluctuating based on sound but my dash lights don’t work so I can’t tell. But when you use any throttle on it, it’ll cut out. Now if you let it idle for a few minutes, u can rev it fine, but only once. When you try again it’ll stutter for a second and quit. I’m assuming my issue is vacuum somewhere, and some of the lines are rigged from another car just to get it running to make sure it’s good (hard to find some of em). But if there’s any other reasons to be aware of, I’d like to know.

TL;DR- old gas, new spark plugs, entire new ignition, questionable vacuum. Was good until it wasn’t. Cranks after a few tries. Can idle okay but stalls at throttle unless it idles for a few minutes. Will still die after one good rev.
Assuming vacuum and gas.


solution: gas lol

Last edited by GageC4; Jun 20, 2024 at 02:11 AM.
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