Thread: What are symptoms of vapor lock

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  1. #1 What are symptoms of vapor lock 
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    My car has had quite a few issues in the past couple weeks and I was wondering if vapor lock is the cause when it runs for a while it gets rough and when you try to start it it will surge and sometimes stall when I shut it off erlier today it steamed I don't know if it was rain from last night or something in the car please help any answer helps
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  2. #2 Re: What are symptoms of vapor lock 
    Moderator dsmuts's Avatar
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    I've never heard of a gp getting vapor lock because the fp is in the tank to prevent it. What codes are you throwing?
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  3. #3 Re: What are symptoms of vapor lock 
    Killa Bee Scottydoggs's Avatar
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    im willing to bet the check engine light is on.

    if it is, go get it scanned.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  4. #4 Re: What are symptoms of vapor lock 
    I live here. stealthee's Avatar
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    You're not going to get vapor lock in a fuel injected vehicle. The fuel pump is much too strong to allow it.


    2011 Mitsubishi Lancer GTS - DD mode
    1991 Mitsubishi 3000GT - Many mods to come
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  5. #5 Re: What are symptoms of vapor lock 
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    No codes ha it check a couple days ago there are no lights on
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  6. #6 Re: What are symptoms of vapor lock 
    GXP Level Member darkhorizon's Avatar
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    try removing the gas cap and see if that makes a difference.
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  7. #7 Re: What are symptoms of vapor lock 
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    Quote Originally Posted by stealthee View Post
    You're not going to get vapor lock in a fuel injected vehicle. The fuel pump is much too strong to allow it.
    He's right
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