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post #1 of 30 (permalink) Old 08-03-2010, 12:15 PM Thread Starter
 
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Fuel tank over-fill: symptoms

Yesterday, I think I experienced the symptoms of an over-filled fuel tank.

I try to follow the recommendations: use the auto shut off pumps, don't top off the tank manually.

I think I inadvertently overfilled the system.

Here are the symptoms I experienced:

1. hard bucking gear changes, in both the auto and the manual mode

2. strange revs- take foot off the gas, and tach revs don't fall as normal, the revs seem to "pulse" up and down. revs eventually drop off, but not like normal...higher than normal idle speed (according to scanguage)...

3. unexpected stall at a red light (never had a stall, ever)

4. no engine warning lights, no other dash indicators

later in the evening, after about 20 miles of driving, and a period of parking, all these symptoms seemed to disappear...vanish...the car now behaves normally.

what do you all think?
does it sound like I experienced an overfill?
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post #2 of 30 (permalink) Old 08-03-2010, 01:07 PM
 
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I've had it happen once and it sounds a lot like my experience. I was driving to San Diego and stopped outside of Yuma for gas and before I realized it there was gasoline everywhere. When I started the car up it bucked and burbled and sputtered for nearly 50 miles. It felt a little like it was running on only one cylinder. And I'm in those hot, desolate, mountains between Yuma and El Cajon in July! But once it had cleared out it was fine again.

My guess is that's exactly what happened to you. - sheureka
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post #3 of 30 (permalink) Old 08-03-2010, 01:29 PM Thread Starter
 
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Quote:
Originally Posted by sheureka View Post
... When I started the car up it bucked and burbled and sputtered for nearly 50 miles. It felt a little like it was running on only one cylinder...
exactly! it felt like it was miss-firing, or had a clogged fuel line/filter..."burbled and sputtered"...bucking bronco! thanks for sharing...
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post #4 of 30 (permalink) Old 08-03-2010, 09:27 PM
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Sounds like vapor lock. it probably had to clear the venting level to let the fuel travel smoothly
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post #5 of 30 (permalink) Old 08-03-2010, 09:31 PM
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At an unfamiliar station, pump ... I had a pump NOT cut off upon fill. I was distracted and actually didn't notice the fuel spilling on the ground for a few seconds. I reckon that would count as overfilled? I didn't have any symptoms, as you describe. Other than wasting gasoline, I had no ill effects.
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post #6 of 30 (permalink) Old 08-22-2010, 12:53 PM
 
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Yeah I just had that happen to me just yesterday. Pump did not turn off, splashing all over, almost $30 and over 10 gallons for the 1st time. Still no ill effects at all, even in 100% humidity.
-How come I got lucky and didn't end up like tgwtln and sheureka? Is it different fuel? different elevation? Maybe different humidity had something to do with it? I was in a Central Florida downpour where the temperature dropped within minutes from an even 100 to 73 (according to the dash)
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post #7 of 30 (permalink) Old 08-22-2010, 01:23 PM
 
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Originally Posted by Pee-wee German View Post
Yeah I just had that happen to me just yesterday. Pump did not turn off, splashing all over, almost $30 and over 10 gallons for the 1st time. Still no ill effects at all, even in 100% humidity.
-How come I got lucky and didn't end up like tgwtln and sheureka? Is it different fuel? different elevation? Maybe different humidity had something to do with it? I was in a Central Florida downpour where the temperature dropped within minutes from an even 100 to 73 (according to the dash)
Your gas shrank!(shrunk),shrinked?! Got littler!
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post #8 of 30 (permalink) Old 08-22-2010, 05:11 PM
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I think it will tolerate it once in a while.
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post #9 of 30 (permalink) Old 08-24-2010, 02:31 PM
 
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One other symptom. My rr, white powder painted rim has a greenish cast. And I used to overfill a lot, but haven't in a couple years. Never had any running issues.
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post #10 of 30 (permalink) Old 08-24-2010, 03:09 PM
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Quote:
Originally Posted by RussBarnes View Post
One other symptom. My rr, white powder painted rim has a greenish cast. And I used to overfill a lot, but haven't in a couple years. Never had any running issues.
Where's that dog????
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