Question about 1999 Chevrolet Silverado 1500

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Kinda shaking n sputtering

Like wen going n2 overdrive n back fires if i get on it...wat's causing this?

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Spark scatter.. check ignition system and replace plugs /coils wires that are suspect

Posted on Nov 21, 2008

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How can i find out what is wrong with my 1999 chevy tracker 2.0l.,when it runs for a while it wont start untill it cools,and back fires


Go to Autozone or one of them and get the trouble codes read. Probably something there, maybe a crank or cam position sensor code, or also could be something in the ignition system like a bad coil or the ignition control module. The ICM controls the ignition coils' circuit, both of these two items can go bad and then fail when warmed up. Backfiring, shaking, and coughing kinda sounds like a bad crank sensor, but that's just a guess. Check for trouble codes first.

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I have a 2002 sebring coupe with a 3.0 v6 mitsubishi engine in it. its acting quite funny for the past 4 days. it vibrates or shakes (sort of the same vibration you get from a misfire) only wen i am...


Based on the info you gave, I would say the engine is experiencing a miss-fire. At some point it should be bad enough to set a code for the cylinder or random missfire.
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The O2 code could be important too, if the fuel system is running lean. It takes more gas when the engine is pulling hard.

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sounds like you crossed a couple of plug wires ...re check fireing order .
Billy Starr

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Sounds like you might need a complete tune-up, coil, wires, rotor and cap, it appears to be a good idea to go to the shop for a complete fuel system cleanout, they'll remove all of the carbon buildup in your system and your fuel economy will increase.

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Sounds like one of the coil over plugs have gone bad. this will cause mis-fire which causes your car to sputter, skip, and shake. It can be changed easily when finding out which one it is. But rather expensive for a simple part $40+ each.

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have you changed oxygen sensors? also check wire and plug on #2 I changed plugs once and got multiple missfires changed 3 plugs to a different brand and it solved the problem

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