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		Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Passenger and Sports Car Forums > Avalon Forum > 1st Generation (1995-1999)
rough idle after running at high speed for 2 hours

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1st Generation (1995-1999) Specific discussion of the first generation Toyota Avalon

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11-01-2009, 04:29 PM	#1 (permalink)
Sweetrider New TN User Join Date: Nov 2009 Location: Florida Posts: 1 Gameroom cash: $1500 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Score: 0 reviews	rough idle after running at high speed for 2 hours My 99 Avalon will start running very rough after I run for 1.5 to 2 hours. I tried putting in fuel additive and problem seems to go away, but it comes back. This only happens if I drive on highway or high speed like 60 or so for more than an hour. If I stop the car and let it cool it goes away and doesn't come back. Any ideas? Anything to try for an inexpensive fix? Sweetrider

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11-01-2009, 08:34 PM	#2 (permalink)
blkavalon Official TN Member Join Date: Feb 2008 Location: Falls Church, VA, USA Posts: 171 Gameroom cash: $20855 Thanks: 1 Thanked 4 Times in 4 Posts iTrader Score: 0 reviews	when is the last time you changed your fuel filter. since it kinda goes away with fuel additives i would assume the filter.

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