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2
votes
1answer
44 views

Excessive vacuum making new fuel cap hard to remove

I recently had the gas cap changed (told there was a vacuum issue) at inspection. It is very difficult to remove this new cap when I go to fill up. Now the car is experiencing episodes where it does ...
1
vote
2answers
69 views

P0442: Faulty EVAP System

After seeing my CEL come on in my '05 Mazda 3 (just passed 100K mi.), I used my code reader to find out that the code was P0442. So I naturally came to this website to see what I could find on the ...
0
votes
3answers
133 views

GOLF 5 GTD gas error led

I have the gas error light (yellow) always on, It turns off some time but it turns on again. I have some cleaning of the air system but it did not work. What could be the problem ?
4
votes
2answers
2k views

VW Golf fuel filler cap will not unlock

The fuel filler flap on my 09 VW Golf estate (diesel) will not unlock. I have tried locking and unlocking the car which should relase the filler flap but it remains locked. The owner's manual says ...
6
votes
3answers
39k views

How important is a fuel cap?

I lost my fuel cap a couple months ago and haven't bothered finding a replacement. I haven't noticed any issues with it, but I'm wondering whether it's causing any damage or reducing gas mileage or ...
9
votes
2answers
8k views

Why would a new gas cap cause the “check engine” light to shut off?

This happened to a friend of mine: The "check engine" light came on in his truck (Toyota). He replaced the gas cap and the light shut off. Then I also had a "check engine" light come on in my 1994 ...