AuthorTopic: gas problem  (Read 2786 times)

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Offline just old

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gas problem
« on: August 11, 2015, 03:54:11 PM »
after about 20 min. of driving around it acts like it is running out of gas pump the seems to help then it go again ?
any ideas

miraclepieco

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Re: gas problem
« Reply #1 on: August 11, 2015, 05:21:08 PM »
No tank vent or tank vent clogged? Tank is creating an internal vacuum as gas is sucked down?

Vapor lock? Fuel line or intake is getting too hot after driving, causing fuel to percolate?

Offline lowboy

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Re: gas problem
« Reply #2 on: August 12, 2015, 07:03:57 AM »
Kinda sounds like vapor lock to me also Mechanical pump or electric?
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Offline Blackwater

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Re: gas problem
« Reply #3 on: September 12, 2015, 08:09:41 PM »
I'd bet on a blocked or non-existant tank vent. My old Jeep truck would stall and quit if I ran it on the freeway for long stretches. I ran one of the big Carter electric pumps and 3/8" fuel line and it didn't help. When i pulled that set-up out to go in the rat rod I found the the tank wasn't vented and neither was the gas cap.

I'm fixing that situation as I put these parts into the new ride. 
 

The Jeep gets a new big inch V8 and modern fuel injection, so Lockjaw is getting the hand-me-downs.
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