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TacomaGeneral discussion forum for the 2005 and later Toyota Tacoma.
This is a discussion thread titled "Gas Cap, is this dumb, I really don't know!", within the Tacoma forum, part of the Truck Forums category.
When I was getting gas today the attendant filled the truck while i went to the lavatory. When I returned, he asked me " someone steel your gas cap"!! I hadn't really ever noticed so I asked him what he was talking about.
He said my gas cap was an aftermarket cap! I didn't know that, so I called the dealer and he said I should be using a Toyota Cap, the aftermarket cap could cause problems! Is this BS, it sure sounds like it?
Lola
When I was getting gas today the attendant filled the truck while i went to the lavatory. When I returned, he asked me " someone steel your gas cap"!! I hadn't really ever noticed so I asked him what he was talking about.
He said my gas cap was an aftermarket cap! I didn't know that, so I called the dealer and he said I should be using a Toyota Cap, the aftermarket cap could cause problems! Is this BS, it sure sounds like it?
Lola
No it's not. You may get a CEL(check engine light) if your truck doesn't like it. Had a friend replace their cap with a lockable cap. After a day, the CEL came on and they replaced it with stock. Disconnected battery to reset ECU and reconnected. No more CEL.
damn, that sux. with the expensive gas prices these days, im afraid someone will siphon my gas. hey no joke, thats a quick/good $50.00! i want to put a digital locking cap on mine, but i forgot about the CEL issue.
hmmm, what to do?
imagine having a couple of 30 gal plastic tanks suitable for transporting gas, in the bed of your truck. 10' of rubber fuel hose and a small fuel pump good for at least 5 gal/per/min. thinkin what im thinkin? pull up next to another truck or suv w/o a gas cap lock and... help yourself. in a few minutes, all the free gas you want. crowded shopping mall parking lots at night would do.
__________________
MODS: TRD urban package - tint, stereo, jack-in-the box antennae ball, my middle finger.
...And as a matter of fact, i cant spell.
crowded shopping mall parking lots at night would do.
Just be sure that excursion or yukon valdez you pull up to isn't a diesel
the CEL is caused by a lack of negative pressure in the fuel tank, the system likes to have a little bit of pull in it and most caps just offer free-flow (check valve) venting I beleive. I'd give it a shot - it should happen within a tank of gas or two if it occurs. Just reset ecu and return the cap if it doesent pan out.
Give Stant a call (http://www.stant.com/) to see if they make a locking gas cap for your vehicle. I have the 10509 model made for my 04 Tundra DC and haven't had any trouble.
__________________ , Joe
2004 Tundra Double Cab 4X4 Limited
Phantom Gray Pearl
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VSC + TRAC, Break Assist, Auto LSD
Crome Tube Step Bars
All Weather Guard Pkg
6 CD In-Dash Changer w/Rear Audio Controls
A.R.E. Z-Series Cap
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Warn Trans4mer w/Hitch Receiver & Brush Guard
Warn 9.5ti Multi-Mount Portable Winch
Warn SDB-160 Driving/Spot Lights
Warn Rear Quick Connect Power cable
PIAA 1500 Back Up Lamps
Stant 10509 Locking Gas Cap
One of the TS Sponsors here, AnythingToyota.com has many parts for sale direct - much cheaper than the dealership.
As for siphoning - pretty hard to do now days with the way the inlet tubes are made. I'm more worried about someone putting something INTO the tank actually!
I read in the paper locally, about some guy who put a few empty 55 gal. drums in the back of a van, drove into a closed gas station late at night, and proceeded to pump the gas out of an underground tank into the drums. The thief must have had a slow electric pump, so was real lucky the police came by and caught him, as he had fallen asleep while wating for the drums to fill (with the van still running). Several potential scenerios could have developed, including drowning in gasoline, then explosion /fire as the van overflowed with fuel!!!
__________________ 2001 Toyota Tundra 4x4 SR5 reg. cab, V-8 auto. imperial jade green with matching Astro-cap w/overhead racks Hellwig rear ASB, Wheeler's poly ASB bushings, H&R 2" leveling progressive coils, Bilstein HD yellow/blue shocks, Husky liners, drop-in Toyota bed liner, TRD Dual Side exhaust, StubbsWelding rocksliders, red 48" Hi-Lift Jack, U-Haul hitch, receiver shackle, SkidRow front/trans/t-case skidplates, POR 15 and ChassisCoat Black frame restoration, 265/75QR16 Bridgestone Winter Dueler DM-Z2 on M/T Classic II wheels 2006 Toyota Tacoma reg. cab, 4 cyl. auto. silver streak mica withmatching LED Astro-cap, Toyota rubber bed mat, Catch-all floor mats, SuperSprings
both trucks equipped with LED amber mini light bars for safety
Give Stant a call (http://www.stant.com/) to see if they make a locking gas cap for your vehicle. I have the 10509 model made for my 04 Tundra DC and haven't had any trouble.
I've had this locking gas cap on my 2005 Tacoma for the last year with no problems. Stant locking fuel cap model numbers are boxed 10509 or carded 11509.
Most of the newer Toyota gas caps are made by Stant,and do not say Toyota anywhere on them.Don't worry about it.
__________________ *A parts man with a code-reader is NOT your friend! *The most expensive parts are the cheap ones that let you down.
*Testing ROCKS - parts swapping is for the . *Anybody can take a dump in a box and mark it guarranteed,but what you really need to do is buy a quality part.... "Tommy Boy"
I've had this locking gas cap on my 2005 Tacoma for the last year with no problems. Stant locking fuel cap model numbers are boxed 10509 or carded 11509.
I switched to this fuel cap and have had no CEL lights come on either.
__________________ "Si vis pacem, para bellum"-Vegetius
2005 Tacoma Doublecab TRD Offroad 4X4 shortbed - Modifications - Fog light mod, Debadged, Black Toyota grille emblem, Map Light Mod, DRL mod
Factory Accessories - Tacoma Bedmat, Extra set of D-rings installed in front bed bolts, Extra set of factory tie downs
Optional Options - FilterMag, Fumoto valve, Westin Suregrip running boards w/LED lights, WeatherTech Floorliners, WeatherTech window visor vents, Prestige remote car starter w/keyless entry, SilverStar headlight and turn signal bulbs, Toytek 2" lift, Muth heated signal mirrors, WAAG grille guard (center only, I'm old school), Taillights tinted by JonsTintedTails.com, Anthracite FJ Cruiser wheels w/ 265/75r16 BFGoodrich A/T
My cel light came on today and the dealer said it was bc I didn’t put my gas cap on correctly
yup, that can cause a cel. mines has been on since i replaced my gascap with a combo lock. i dont care, it doesnt bothr me, just my passengers. i have not noticed any change in my gas milage either. i still ave over 15 mpg.
__________________
MODS: TRD urban package - tint, stereo, jack-in-the box antennae ball, my middle finger.
...And as a matter of fact, i cant spell.
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Gas Cap, is this dumb, I really don't know!
pull up next to another truck or suv w/o a gas cap lock and... help yourself. in a few minutes, all the free gas you want. 
crowded shopping mall parking lots at night would do.
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