Seized/frozen fuel cap lock

Problem or technical question?

Seized/frozen fuel cap lock

Postby jonyb4 on Mon Dec 20, 2010 11:56 pm

my fuel filler cap has seem to have seized, or frozen, one way or another i cant open it to fill up, therefore imobilising my car, rather anoying you can understand

it was fine untill the snow hit, not its only tuning and stopping just shy of that notch where it unlocks

anyone got any tips to getting it off, im worried about snapping my only key, futherst ive gotten with it is to where it can sort of wiggle on one side open only to jam, pulling and pulling it wont come out

i have a temporery fuel cap bung (one of them petrol station jobbies) but i dont know how to go about rebuilding it or getting a replacement fit for my key


any help id appreciate thanks Jon
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Re: Seized/frozen fuel cap lock

Postby SLEEMAN on Tue Dec 21, 2010 12:18 am

is it completely frozen solid/seized??? can you spray deicer and spray some wd40 in the lock mechs?? surely that would work
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Re: Seized/frozen fuel cap lock

Postby jayrs on Tue Dec 21, 2010 2:04 am

the lock is easy to rebuild, you got your key code now.

they dry out over time and become stiff, im guessing some moisure might of frozen in there which isnt helping things.

if its off, leave it on the rad to warm up so eveything expands, and oil it up and keep locking unlocking it.

i cant see the lock just going like that without any signs of a worn lock prior
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Re: Seized/frozen fuel cap lock

Postby jonyb4 on Tue Dec 21, 2010 2:17 am

hmm its got me stumpd too

my mk4 and all th other fiestas ive had prior have always had stiffer locks in the caps to the si, thisis by far the easiest and hastle free one ive had, thats why its soo odd to have

ive done the wd-40, and poured boiled water over it all, ill try the anti-freeze tomorrow and ill stic some greese on the key and insert it

but yea its still in the funnel so cant put it on the radiators :(

thanks guys
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Re: Seized/frozen fuel cap lock

Postby - Danny Boy - on Tue Dec 21, 2010 2:23 am

Its stuck in the car? Oh noes! Best thing to do is keep putting hot water on it, open up the hole where the key goes in and put as much inside as you can, then lube it after, try some sort of de-icer and pentatrating spray.

I take it you have one with a seperate key as opposed to the normal key?
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Re: Seized/frozen fuel cap lock

Postby jayrs on Tue Dec 21, 2010 10:18 am

grease on the key wont make a difference mate, wouldnt waste your time on that.
i wouldn't go opening the little flap and bunging loads of water in there, the lock is not water tight and you will put water in yout tank.

i thought from your reply it was off the car and the universal bung was in, must of mis read, my bad
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Re: Seized/frozen fuel cap lock

Postby jonyb4 on Tue Dec 21, 2010 1:18 pm

i mentioned i cant fill up the car untill its removed

no danny i have it as the only lockable one, the other i have is a spare lockless rubber bung that you can buy at tesco garage.
not that i get many hate crimes agaisnt me where they'd pour water into my tank, and its not like they can syphon it either, but better safe than sorry i guess :rolleyes:
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Re: Seized/frozen fuel cap lock

Postby SLEEMAN on Tue Dec 21, 2010 8:20 pm

if you're struggling to get it off, get a big flat bladed screwdriver and yank it out, it will come out after a while and won't damage the funnel if that helps
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Re: Seized/frozen fuel cap lock

Postby jayrs on Tue Dec 21, 2010 10:54 pm

sure you have pissed anyone off and they have super glued the lock :lol:

i remember a thread on here some years ago where someone couldnt get the cap off, called the RAC out and they got it off....

should of seen the rear quarter around the cap, wasnt rusty from what i remember, but i do remember the dents and $hit all around it caused by the RAC bloke! completely wrecked the filler panel
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Re: Seized/frozen fuel cap lock

Postby curly on Tue Dec 21, 2010 11:55 pm

ive had this done to me a fue times, and ive snapped keys aswell so becareful of it,,

basicly, spray loads of wd in to the keyhole prior, using the little sraw wd have does help alot,, dows the key, right depending what handed you are, seing as im a lefty,,

i had the left hand on the key,,
my right hand pushing the cap in and keeping it sturdy,,

i then repeatedly turned it left and right n left n right n so on, unill you feel it startiong to move, if not then spray more wd in,, unless uve seriously shagged the lobes in the lock, if its froze stiff then eventually work free,

just dont lock it up and remove the key once uve got it off or ur bolloxed trying to get the key back in to open position,,

also some hub grease would be good for it, after a good lubing up,, as it doesnt dry out as well,

also contrary to the belifs itll go in the fuell, wd is combustable so wont do it that much harm other than unless u mixed a buket load of the stuff in there
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Re: Seized/frozen fuel cap lock

Postby jonyb4 on Wed Dec 22, 2010 1:07 am

cheers guys
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Re: Seized/frozen fuel cap lock

Postby curly on Wed Dec 22, 2010 1:16 am

also if ur going to do it, before hand,, get some pliers for one!! as ur life saver,, or moulgrips just incase,,

and 2,
before u go ramming ur key in,, get hold of the metal part of the key with ur finger and thumb, stupid i know it sounds, but if u can twist it side to side, and there is slight movement, chances are u guna strip the key out the plastic, hence the pliers to get the ket out to get it cut,,

also, just to be safe, see if the key itself has any bad smoothing efects on the groves on the end,, if so, indicates it may not be turning the lobes properly,
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Re: Seized/frozen fuel cap lock

Postby knuckles on Mon Dec 27, 2010 9:15 pm

why have you only got one car key jony ? :-?

it does my head in at ford when ppl come into me and say ive broken my only key. Then i try and read the key only to find its so worn its unreadable. Great help.

its a very exspensive job to replace a lock set on a car and program the keys into the pats system if you lose or break your only key so why not get 2 spares made ? :-?

aparently automatic transmission oil is a good at unseizing a stiff lock cylinder.
a new mk3.5 lock cylinder is around £28 to buy as a kit form to replace in the fuel cap.
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Re: Seized/frozen fuel cap lock

Postby jonyb4 on Mon Dec 27, 2010 11:56 pm

you get what your given really, and i only gotr given a single key when i bought it, ive never lost a single key, car, house or the like so it didnt occur to me i might, but ofcourse you dont plan these things

but apart from ford the problem is i dont know where i can get another one, and even more so getting another transponder, ford will be very expensive, best i could get locally is a t - bar key

i know my code, or rather jay knows it lol
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Re: Seized/frozen fuel cap lock

Postby jonyb4 on Mon Dec 27, 2010 11:57 pm

still not got it off, ill try the fluid you mentioned, same as pas fluid aint it? i need a top up actually so can do it then

its completely run out of petrol now too, luckily as i arrived home :rolleyes:
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Re: Seized/frozen fuel cap lock

Postby jayrs on Tue Dec 28, 2010 12:08 am

jonyb4 :i know my code, or rather jay knows it lol


couldnt tell ya it now though, was a while ago i built that lock up.
might be in a sent pm though, i can have a look if you need it
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Re: Seized/frozen fuel cap lock

Postby jonyb4 on Tue Dec 28, 2010 12:30 am

i was gonna say it should be still in the pms, if not mine yours i hope lol
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Re: Seized/frozen fuel cap lock

Postby jayrs on Tue Dec 28, 2010 12:04 pm

i got a sent pm which has a code, but its not a deffo code, i got a feeling when you sent me the old lock and i stripped it, it was a little different?

have a look in the bag with the old lock i sent back to ya, im sure i put a bit of paper in there with the code on it
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Re: Seized/frozen fuel cap lock

Postby knuckles on Tue Dec 28, 2010 1:03 pm

jonyb4 :you get what your given really, and i only gotr given a single key when i bought it, ive never lost a single key, car, house or the like so it didnt occur to me i might, but ofcourse you dont plan these things

but apart from ford the problem is i dont know where i can get another one, and even more so getting another transponder, ford will be very expensive, best i could get locally is a t - bar key

i know my code, or rather jay knows it lol



regardless of never losing stuff. Its sensible to have spares for emergency use.
And yes going to ford to get another key cut and programed will cost ...
1x Key £35
cutting charge £8
programming via wds £98.50

or you can call a mobile locksmith to come out to you and cut 2 new keys and program them into your pats system.
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Re: Seized/frozen fuel cap lock

Postby jonyb4 on Tue Dec 28, 2010 2:31 pm

hmm is that 90quid programming part essential?

my keys are insured with my bank, but i dont know where of not theyre willing to go all the way as to pay for reprogramming charges


cheers jay but im sure i rmember you telling me the new code after finishing the barrel
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Re: Seized/frozen fuel cap lock

Postby jayrs on Tue Dec 28, 2010 5:29 pm

yeah its essential mate, other wise your get into the car and get the steering lock off with the new keys, but it just wont start.
not unless you have the old key on the keyrings too.

you could remove the transponder and fix it in place inside the steering cowling, but i dont advise that tbh.
you could get another PATS system and fit it, then fit the transponders in your exsiting keys

or just bite the bullet and go for a reprograme
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Re: Seized/frozen fuel cap lock

Postby knuckles on Tue Dec 28, 2010 7:33 pm

jonyb4 :hmm is that 90quid programming part essential?

my keys are insured with my bank, but i dont know where of not theyre willing to go all the way as to pay for reprogramming charges


cheers jay but im sure i rmember you telling me the new code after finishing the barrel


of course the programming is essential as jay has mentioned your new key would turn the ignition but wouldnt start the car.

It would be more exspensive to replace the whole pats system as you need the module 3 programable keys and the transponder to match the code on the 3 keys and module.

Hardly worth it tbh unless your have a donor car of the same spec,
get a quote from a mobile locksmith and compare the prices to the main dealer.
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Re: Seized/frozen fuel cap lock

Postby jayrs on Tue Dec 28, 2010 7:43 pm

thata what i was on about clark, s.h pats, wouldnt waste time on a brand new one.

other than that, rip it all out and fit a after market alarm :lol: , but for the cost and time, you just as well have what you got sorted
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Re: Seized/frozen fuel cap lock

Postby RS rob on Wed Dec 29, 2010 12:35 am

never put wd40 in a lock, it will dry it out and make things worse after a while

we only use atf fluid, or red powersteering fluid in fords bodyshop
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Re: Seized/frozen fuel cap lock

Postby jonyb4 on Wed Dec 29, 2010 4:20 am

pas fluid it is!

liek i said two birds with one stone being i can top up my pas res, its below min even atm :( dont know where its gone
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Re: Seized/frozen fuel cap lock

Postby RS rob on Wed Dec 29, 2010 6:56 pm

slight weeping on the rack or pump is common
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Re: Seized/frozen fuel cap lock

Postby jonyb4 on Wed Dec 29, 2010 11:10 pm

ah right

anywho got the bloody cap off the filler, doesnt look to be in the right order, or it does not sure never looked at one in detail before, one of the pins is appering to be bent, could bt the cause of it

i just turned the key so far, one fot he pins unlocks and the other didnt, so i just praised it out on that unlocked side and pulled with mole grips, got one fo them keyless replacements in for the time being

got a spare cap from a previous car but no key for it, i sodl it to a local :(

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the missing bit of plastic is what snapped off by the grips :9

anything look out of place, im not positive myself
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Re: Seized/frozen fuel cap lock

Postby jayrs on Wed Dec 29, 2010 11:54 pm

one locking lug is bent, but you could of done that removing it.
wouldnt worry about it though, get another one with a key.

if your stuck getting one let me know asap as im going to scrappy to get a wheel maybe tomorrow or friday, i can keep my eyes peeled for a cap with a key.
price will be what ever i have to pay for it, which in the past ive paid £6 for one, and a mate paid a tenner, depends whos on
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Re: Seized/frozen fuel cap lock

Postby jonyb4 on Thu Dec 30, 2010 1:11 am

lol alright jay ill see if the guy i sold the lock and key to has used it or not, if he aitn ill let you know tomorrow or text you :Q
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Re: Seized/frozen fuel cap lock

Postby jayrs on Thu Dec 30, 2010 10:21 am

ok fella, i might be down there today though yet, if i am and you havent seen this and let me know ill text ya
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Re: Seized/frozen fuel cap lock

Postby jonyb4 on Thu Dec 30, 2010 4:45 pm

Jay if you can get one with a key for less than a tenner could you pick me one up please, cheers mate
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Re: Seized/frozen fuel cap lock

Postby jayrs on Thu Dec 30, 2010 5:10 pm

cant promise it will be less than a tenner, might be £10 mate, but i will ask when i get there and text you to let ya know the price and you text me back to say yes or no, but i wont be there long, so your have about 10 mins to text back, and i wont go looking for a cap untill ive heard back from ya.

cap wise, i belive escort ones (late mk5 on) use the same ones also
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Re: Seized/frozen fuel cap lock

Postby jonyb4 on Thu Dec 30, 2010 7:11 pm

aye mk5 b mk6 and mk3/4/5 fiesta, probably even ka's too

ok £10 or less you have permission lol :P

maybe £11 :)

jsa has messed u and not recieve pay so i got no credit atm mate, its its in the price range go ahead and get one if you can find one

cheers jay i owe ya :)
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Re: Seized/frozen fuel cap lock

Postby jayrs on Thu Dec 30, 2010 8:02 pm

ok mate no prob's, will see what i can find mate
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Re: Seized/frozen fuel cap lock

Postby jonyb4 on Thu Dec 30, 2010 8:20 pm

cheers jay, i feel so cheeky :(

trying to think if theres anything else small i need :(
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