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2000
115,000 Miles
gas cap loose warning light comes on.I replaced the gas cap with a new one and it does the same thing from time to time and the gas cap seems to be tight.
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2000
108,000 Miles
Service engine soon light came on this past march, (2012) took car in, they sanded off some rust where the gas cap screws on, worked fine until two days ago service engine light came back on...taking it back in tomorrow...any suggestions?
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2000
147,000 Miles
Service vehicle soon light on and message said check for loose gas cap. Problem solved by replacing worn and deteriorating fuel pressure harness which is attached to the fuel pressure regulator. Does not require a mechanic to do really. GM part #2450-6640.
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2000
180,000 Miles
Gas Cap Loose, Check Cap Message AND Check Engine Light.
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2000
117,000 Miles
check engine light came on - took it in to mechanic - code indicated gas cap seal failure - new gas cap cured it for a month or so, now the error code is back and won't go away
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2000
50,000 Miles
bought car with 49kmi..within a month the check gas cap light came on , ended up reading poses and purchased a new cap -- light went off -- a month later it is back on..
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2000
102,000 Miles
Service engine soon light until gas cap is screwed on again.
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2000
120,000 Miles
i had the same issue and i wouldnt pass inspection because of it... i went to an auto repair and the guy said he had to suck the air out of my tank and never came on since and thats been like last November
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2000
153,465 Miles
that happened to me too but u can kinda fix it by disconnecting and reconnecting the negative battery cable. it resets the computer.
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2000
53,000 Miles
I cleaned the entire area around the gas cap, I had a hand vacume to suck anypatricles up
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2000
124,000 Miles
Happens about once every couple weeks, will sometimes go off after I get gas but will sometimes stay on for weeks
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2000
46,790 Miles
THE GAS CAP WAS THE PROBLEM ALL THE TIME. i BOUGHT A REPLACEMENT COP AT pEP bOYS AND CHANGED IT MY SELF when I had the engine oil and filter changed. Wheeew! That problem went away. I previously heard horror stories about having to have smoke tests to find a system air leaks and several others which are HUGH money maker evaluations that draw the unsuspecting car owners to buy into these false claims. BUYER BEWARE!
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2000
207,861 Miles
Check gas cap is on constantly
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2000
191,962 Miles
Check engine light comes on and than go off
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2000
0 Miles
Check engine stays on and yes bad gas cap. Where can i get i cap that fits properly so light will go off
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2000
140,000 Miles
My car failed emis. So got a new gas cap discounted the battery for 5 min. Light went off. Drove for 40 miles did not come on. So i called to have reinspected he said i needed a 100 miles on it.so i did light came back on. He said i need a smoke test.The collar of my gas filler does not have a collar would that be it.
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2000
210,000 Miles
"gas cap loose" on dash; gas vapor from gas cap after parking car; it was recommended to replace the gas cap. I bought an inexpensive gas cap at O'Reilly's. It worked fine for awhile, then the "gas cap loose" on dash came back & the smell of gas vapor from the gas cap after parking the car came back. I was told that I needed to get a gas cap from the Buick dealer. So I did that and paid 3 times the amount for it. Put the new Buick gas cap on my 2000 Buick LaSabre, and it still has the "gas cap loose" warning on my dash, and it still has a gas vapor from gas cap after parking car. Can you help me? Thank you, Jan
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2000
104,000 Miles
The check engine, and also the gas cap loose, indicators have come on in the last ten days or so. I haven't panicked so far since this is my fourth occurence. Being kinda ignorant I first took it to my friendly Buick dealer where I bought it used in October 2006, with 28000 miles on it. They were kind enough to diagnose the problem, for a whole bunch of money, & give me a new gas cap for about $ 500 or so. It took two trips. That lasted for about 11 1/2 months until, oops, here it is again. this time they only charged me about $ 150. They told me it went bad before the 1 year warranty period expired, but I had put 15000 miles on my car in the last year, so there was no warranty coverage. I guess those were 15000 really hard miles on that gas cap. Needless to say, I'm selling my Buick. I give up. I'm buying something made in Japan (or Korea) or wherever. This is just the short form of my Buick experiences. I never did tell you about my entire gear shift, linkage & all, falling apart. But for what it's worth, I'm outta here! See ya! Bob
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2000
130,000 Miles
light on, chevrolet dealer put on computer to find & they corrected it.
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2000
102,000 Miles
Check engine light came on...the mechanic plugged the car into his diagnostic computer. According to the code, he said it's probably a problem with the gas cap. He replaced it...that fixed it.