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Can a loose or poorly sealed gas cap impact engine performance?
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Syncronoid
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PostPosted: Sun Oct 08, 2017 6:56 pm    Post subject: Can a loose or poorly sealed gas cap impact engine performance? Reply with quote

Maybe it was just that feeling you get when you wash your car and it seems to make it run better, but I could have sworn I got a little better performance over HWY 17 (hilly between Santa Cruz and Silicon Valley) last night, the first time since replacing the seal on my leaky gas cap. Can a loose or poorly sealed gas cap impact engine performance?

GW2.5L
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'90 Syncro TinTop
'80 Vanagon Country Homes Camper
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shagginwagon83
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PostPosted: Sun Oct 08, 2017 7:13 pm    Post subject: Re: Can a loose or poorly sealed gas cap impact engine performance? Reply with quote

No idea, but how did you know you had a leaky gas cap?
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24 year old male, 34 year old van
1983 Westy - stock watercooled engine with ~121k miles
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Syncronoid
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PostPosted: Sun Oct 08, 2017 7:26 pm    Post subject: Re: Can a loose or poorly sealed gas cap impact engine performance? Reply with quote

Gas smell and gas racing stripes on the van behind the filler bezel. It was obvious the old seal was leaking.... cracked and old. And when I leaned overthe cap and took a big sniff, I felt funny. Laughing

shagginwagon83 wrote:
No idea, but how did you know you had a leaky gas cap?

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wcdennis
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PostPosted: Sun Oct 08, 2017 7:29 pm    Post subject: Re: Can a loose or poorly sealed gas cap impact engine performance? Reply with quote

My wife likes to pat the Van on the dash when it is working hard going up a hill. Our van likes the encouragement. I'm sure yours likes its new gas cap.
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msinabottle
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Location: Denver Area, Colorado
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PostPosted: Sun Oct 08, 2017 9:37 pm    Post subject: Re: Can a loose or poorly sealed gas cap impact engine performance? Reply with quote

A loose OIL cap can do... amazing things.

Shocked

I do not chant 'I Think I Can!' when Winston is slogging it uphill. He finds that insulting. But I do pat him, and tell him how well he's done. He responds well to that. With his RMW exhaust, he keeps surprising me with his new speed.

A wise Vanagonaut once said, 'Never anthropomorphize a Vanagon. They HATE that!'

Shocked

Best!
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