i was an idiot last night and pulled away without puttin the gas cap back on. Is it bad to run it without it, and where can i get a new one fast.

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86 IROC LG4,DUAL SNORKEL,AMERICAN THUNDER,3.27 GEARS

 

No it won't hurt it. (on the new cars it sets a check engine light)

You can get one at any auto parts store.

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ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R

GO #3

 

Actually, if your gas tank is in good condition (Filler neck no wobbly or loose), the cap actually incerases your mileage because it keeps the tank under pressure. It then does not let any vapor/fumes into the air, keeping every ounce of gas in your tank. You'll know if your gas tank is in good condition if you hear a hissing sound after you take off the cap, meaning that it's decompressing.


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89' Formula, 350tpi lots mods.
Fast as hell!!!!!!!

 

Don't drive too fast either. The vacuum of the moving air will pull out gas from the tank and it will run down the side of your car. (been there, had it happen).



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87 IROC-Z, 5.7, auto, 3.27, leather, !cat, Holley fpr, K&N'S, SLP 1-3/4" Jet-Hot coated headers, SLP cam, $uperPITAram, Edelbrock lower intake, Holley 52mm tb, Dynomax/Flowmaster catback
Coming Soon - Fasttrack/Accell DFI

1989 Pontiac 20th Anniversary Turbo Trans Am - STOCK (for now)
SOLD ->91 Z28, 5.7, 3.23, Ported Plenum, Accel runners & lower intake, Accel distributor module, !dual cats, POS Edelbrock catback, K&N'S, ram air, tb airfoil, !tb coolant

 

Yeah, and don't try turning any corners with a full tank either, the gas will splash out all over your 1/4 panel. I had my cap on, but not tight (one of those locking gas caps that don't always tighten really good) and gas coming out caused my paint to bubble up under the cap and down the side of the car. Not cool at all. Same thing happened on my friend's 86 Z-28 after he left the cap off, but he got the gas washed off sooner than I did.....
Vman

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1989 Camaro RS
2.8 V6
K&N's
700R4 tranny
Cragar Street Pro rims (old Series 30)
Pioneer DEH-P3000

1969 Camaro SC
350 HO from a Vette
Turbo 350 tranny
In the process of being restored