LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Starting trouble when hot

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Old 06-07-2008, 05:03 PM
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Default Starting trouble when hot

My 94 LT1 has suddenly started taking really long to fire up, especially when hot. It used to start as soon as I turned the key. Now I have to crank it forever . It started doing this right after I put a new fuel pump on it. It's already had a full tune-up - new plugs, wires, opti, O2 sensors, fuel and air filters, new oil and filter.

I thought maybe the fuel pump isn't delivering enough pressure when it first primes up so I tried turning the key on and off a couple of times before cranking but it didn't change anything. I am starting to suspect it might have something to do with the evap canister since the smell of gas outside the car, especially in warm weather is overwhelming. Could it be something like vapor lock?

Any ideas people?
Old 06-07-2008, 05:08 PM
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I have the same problem and i have done about all of the same things you have and it still isn't right.
Old 06-07-2008, 05:24 PM
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Originally Posted by meanredZ
I have the same problem and i have done about all of the same things you have and it still isn't right.
What about the evap system? Did you look into that?
Old 06-07-2008, 05:41 PM
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No i never even thought of that but i'm gonna try that next.




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