Car runs better on full tank/ speed a/ CE light - Maintenance and Repair Forum

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Car runs better on full tank/ speed a/ CE light
Saturday, August 20, 2005 8:55 PM
Car ever make you want to pound your head into a wall?

Anyways, I let my dad borrow the cav while his car was in for work. To be nice, he
filled the tank for me. interesting thing is, it runs better on a full tank..it still will
idle rough, but not as hard, and not as often.

What would make the car run that much better? I mean, I know something is going
(part-wise), but I find it pretty interesting. Especially after replacing the fuel pump
a few months back..with a complete fuel system cleaning.

The other part is interesting too. When I'm up to speed, then I go to slow down,
right away it throws the check engine light on.

Though once in a while I notice when hitting the gas..and stay at a constant speed..
the throttle wants to drop and slow down...hit the gas again...back up it goes...

I wonder if it is time for a change of sensors or something..




Re: Car runs better on full tank/ speed a/ CE light
Sunday, August 21, 2005 9:28 PM
Any tips?



Re: Car runs better on full tank/ speed a/ CE ligh
Sunday, August 21, 2005 9:34 PM
I would think it's a problem with you fuel pump, but I know nothing about fuel pumps


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Re: Car runs better on full tank/ speed a/ CE ligh
Sunday, August 21, 2005 9:42 PM
BRADBOT wrote:I would think it's a problem with you fuel pump, but I know nothing about fuel pumps


No! No! No! I just replaced the fuel pump and lines....it better not be that...

I'll kick the fuel pump, I swear....



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