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2003 Chevrolet Tracker Questions

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69
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My Tracker has been stalling out after Idling (with AC on), after about 2 or 3 min. Cannot start it back up as it shakes rattles &rolls. After it cools down it starts right up. No engine light is on, for trouble. Have put in 3bottles of injector cleaner due to possibility of bad gas

It happens as soon as my foot hit the gas it smokes and over heats I need to no what's goin on so I can get back drivin

check engine light does not show on dash. may need to change bulb.

it stopped than when I tried to restart it, it has a noise like whhio

I have a 03 Chevy Tracker 2.0L 4X4 AT It ran Perfect when I first got it -But Started bucking, Horribly like it was missing on 2 of 4 cylinders. MAF DTC So I cleaned MAF. Run perfect again for about 100 miles & Repeated the Bucking. DTC said Replaced the MAF, MAP, Knock, ECT, OX, sensors & Sparkplugs & it still has both MAF Low & High Input-DTC, ETC Low Input, Knock High input, & undefined DTC.
Unplug/Replug Wire harness under Dash on Drivers Side. MAF Low is now Gone, But, MAF High Input, ETC Low, & Knock Sensos High inputs Still Come Back. WTF Help
I have an Auto Boss V30 Elite & Monitor all sensors - MAF stays at 239.4 all the time and I can unplug it with no change but, when I remove MAF from in take Tube with it plugged in - 239.4 reduces slightly & engine Stops. Also, EGR is always at 0.0
All other Sensors Look like they are Functioning correctly. Would you get an ECM Defective DTC if it is bad,?.? Help Thanks

Need suggestions why

car ran perfect -Started bucking like it was missing on 2 of 4 cylinders. MAF DTC So I cleaned MAF. Run perfect again for about 100 miles & Repeated the Bucking, Replaced the MAF, MAP, Knock, ECT, OX, sensors & Sparkplugs and 03 Tracker 2.0L 4X4 AT & it still has both MAF Low & High Input-DTC, ETC Low Input, Knock High input, & undefined DTC's WTF Help
Monitor all sensors & MAF stays at 239.4 and I can unplug it with no change but, when I remove MAF from in take Tube with it plugged in - 239.4 reduces slightly & engine Stops.
Also, EGR is always at 0.0 Thanks

Replaced alternator. Week later "Service Engine" light came on. Had garage run diagnostics - no problem showed. Only drove on short trips in city and light still on, but no still no problems ... Until I took a 200 mi trip and smelled something burning on my return trip. when I arrived home and turned car off, noticed dark smoke coming from under hood -- not sure where it came from (dark). Just wondering if anyone knows a reason.

Seems dead at times, other times radio plays and there is a clicking noise. Battery is new and has been tested. Has started afyer long jump, has started after messing with wires hanging on fuse box (under the hood by battery). After getting it started we can drive it 3-4 days and then we get in and it won't start. Took it to mech and he had no problem.

I replaced lower control arm, both wheel bearing, cv halfshat(both sides), both inner tie rods,

It seems to be hesitating before it goes into grars.