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2001 Spectra bucks during acceleration

The check emissions light is on constantly now but the car idles fine. once the accelerator is applied in first second and third gears the car bucks and the check emissions light starts to flash. once up to speed the bucking stops. usually only bucks for 3 -4 seconds. and the light stops flashing as well but stays lite. (manual tran). it also does this at high speeds on the highway if going up a hill. i have had two different opinions

1 that there is a vacuum leak

2 i need to replace the fuel filter

The car has 67000 miles. Where is the fuel filter located and is it easy to replace? or at least somewhat accessable?

Reply to
Cronoglous
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Well i changed the fuel filter.. still does it. i took apart most of the vacuum system and put it back together looking for leaks and came up empty handed.. i know the car had a problem several years ago with the vacuum system.. a tube kept coming off so it was soldered in place.. if that helps any.. i looked for the soldered tube but couldnt find it.. i did see two solder splaters on top of the engine but no soldered tube..

Reply to
Cronoglous

A flashing CEL means a misfire has occured. First thing to check would be the condition of plugs and wires. If that turns up nothing, then it sounds like something is momentarily giving a bad reading, mass airflow, O2, TPS, or the like. Whats the code the computer is giving you?

Chris

Reply to
Hal

i Dont know the code. How do i find out what the code is? i will check the plugs and wires once my girlfriend brings the car home. Update: the light is still on constantly and and starts to flash and buck like before going into gears. no worse no better yet. ill get back to you after checking the wires

Greg

Reply to
Cronoglous

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