02-13-2011, 08:45 PM
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#1
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Premier V.I.P. Member
Join Date: Feb 2009
Location: Oxbow SK
Posts: 1,385
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wierd engine problem
hey guys. my 2.2 ecotec had a weird problem starting on saturday.
while driving the car will all of a sudden start stuttering and lose power while under load and driving. but it only does it once and a while and for short times.
there doesn't seem to be a pattern. for example. went to a friends house a town over, and had the cruise set. every couple minutes it would bog down and slow down. hit the clutch, give it some gas and away it went.
it's kinda like when your traction control kicks in. sounds exactly like that.
on the way back. worked fine the whole time.
not sure if it does it under load or not. i think it might of a couple times at a stop light.
so i've narrowed it down to a couple things.
1. fuel pump starting to go bad?
2. plugged injector?
3. my negative post on the battery might not be making a proper connection. i recently took off the post and things were slightly corroded, but i reinstalled anyways.
4. bad 02 sensor
things that have changed recently. on wednesday i installed a new front 02 sensor, and disconnected the negative post on the battery to clear the computer, and attempt to get rid of the cel.
filled car up saturday afternoon. it was right empty (been this way for about 2 weeks now)
i dont think it's bad gas since it had trouble starting saturday morning. fired up and died right away.
i'm going to take battery posts off and clean them up first, see if that fixes it.
any other ideas?
sorry for the long post. trying to give alot of information
__________________
2002 Alero w/ 2.2 ecotec 5 speed
power window conversion, heated leather seats, 16" rims, high & low hids, auto dimming rear mirror, speedbuilt front and rear sway bars, poly bushings all around.
2005 Silverado 2500HD w/ 6.0l Vortec 4L80E
Tuned 6.0l, exhaust, intake, with 450000km on the odometer. Tow Rig
1985 Pontiac Trans Am GTA w/ 5.7 Vortec 700r4
mild vortec 350 with 4 speed auto. performance suspension. factory gold color. project car
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02-15-2011, 08:43 AM
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#2
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Premier V.I.P. Member
Join Date: Feb 2009
Location: Oxbow SK
Posts: 1,385
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just in case anyone was wondering.
it appears my problem was not any of those. i had water in my gas tank i believe.
__________________
2002 Alero w/ 2.2 ecotec 5 speed
power window conversion, heated leather seats, 16" rims, high & low hids, auto dimming rear mirror, speedbuilt front and rear sway bars, poly bushings all around.
2005 Silverado 2500HD w/ 6.0l Vortec 4L80E
Tuned 6.0l, exhaust, intake, with 450000km on the odometer. Tow Rig
1985 Pontiac Trans Am GTA w/ 5.7 Vortec 700r4
mild vortec 350 with 4 speed auto. performance suspension. factory gold color. project car
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02-15-2011, 02:27 PM
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#3
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GL Member
Join Date: Jan 2010
Location: Suffolk, Virgina
Posts: 609
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Could also be bad coils, wires, plugs, or ICM.
__________________
01 Alero 2.4 - Just minor mods...
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02-15-2011, 08:20 PM
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#4
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Premier V.I.P. Member
Join Date: Feb 2009
Location: Oxbow SK
Posts: 1,385
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all of those are less than 2 year old. and i dont have wires, so i knew it wasn't those.
put some gas line antifreeze, running much better now
__________________
2002 Alero w/ 2.2 ecotec 5 speed
power window conversion, heated leather seats, 16" rims, high & low hids, auto dimming rear mirror, speedbuilt front and rear sway bars, poly bushings all around.
2005 Silverado 2500HD w/ 6.0l Vortec 4L80E
Tuned 6.0l, exhaust, intake, with 450000km on the odometer. Tow Rig
1985 Pontiac Trans Am GTA w/ 5.7 Vortec 700r4
mild vortec 350 with 4 speed auto. performance suspension. factory gold color. project car
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02-15-2011, 08:37 PM
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#5
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GL Member
Join Date: Jan 2010
Location: Suffolk, Virgina
Posts: 609
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I meant boots. lol. And I had a brand new stock coil pack from advance die in less than a week. lol.
__________________
01 Alero 2.4 - Just minor mods...
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02-15-2011, 08:41 PM
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#6
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Premier V.I.P. Member
Join Date: Feb 2009
Location: Oxbow SK
Posts: 1,385
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ya. i hate it when that happens. thanks for the advice though! any help is appreciated
__________________
2002 Alero w/ 2.2 ecotec 5 speed
power window conversion, heated leather seats, 16" rims, high & low hids, auto dimming rear mirror, speedbuilt front and rear sway bars, poly bushings all around.
2005 Silverado 2500HD w/ 6.0l Vortec 4L80E
Tuned 6.0l, exhaust, intake, with 450000km on the odometer. Tow Rig
1985 Pontiac Trans Am GTA w/ 5.7 Vortec 700r4
mild vortec 350 with 4 speed auto. performance suspension. factory gold color. project car
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02-15-2011, 10:07 PM
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#7
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GL Member
Join Date: Jan 2009
Location: Fowlerville MI
Posts: 874
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we had a truck come into work last week for a similar problem. cylinders 7 and i believe 5 were having misfires and throwing codes. dropped the tank and sure enough 3/4 of a full tank of gas was water. contacted the gas station and they said the pump was out of order but they didn't have a sign on the pump at the time of the guy putting gas in his truck.
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[ion] C2 - I ran her hard, on nothing but the bare ground. After easing into it and progressively pushing down harder I could feel the pressure building and once it peaked I let off and she gave a loud cry from the blow off valve.
Ttop191 - ^ because your car is the only thing that will suck and blow that you can actually successfully get within 25 feet of
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02-15-2011, 10:35 PM
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#8
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Premier V.I.P. Member
Join Date: Feb 2009
Location: Oxbow SK
Posts: 1,385
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ya. i'm burning this tank asap, cleaning injectors, and putting good gas in next time
__________________
2002 Alero w/ 2.2 ecotec 5 speed
power window conversion, heated leather seats, 16" rims, high & low hids, auto dimming rear mirror, speedbuilt front and rear sway bars, poly bushings all around.
2005 Silverado 2500HD w/ 6.0l Vortec 4L80E
Tuned 6.0l, exhaust, intake, with 450000km on the odometer. Tow Rig
1985 Pontiac Trans Am GTA w/ 5.7 Vortec 700r4
mild vortec 350 with 4 speed auto. performance suspension. factory gold color. project car
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02-15-2011, 10:40 PM
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#9
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GL Member
Join Date: Oct 2009
Location: Illinois
Posts: 604
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Might be a good idea to seafoam the car, on the can it tells you all the benefits of it and one of them is "removes moisture from fuel and oil". Plus, nothing wrong with having nice clean internals
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02-15-2011, 11:30 PM
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#10
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Premier V.I.P. Member
Join Date: Feb 2009
Location: Oxbow SK
Posts: 1,385
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lol, did that this afternoon!
__________________
2002 Alero w/ 2.2 ecotec 5 speed
power window conversion, heated leather seats, 16" rims, high & low hids, auto dimming rear mirror, speedbuilt front and rear sway bars, poly bushings all around.
2005 Silverado 2500HD w/ 6.0l Vortec 4L80E
Tuned 6.0l, exhaust, intake, with 450000km on the odometer. Tow Rig
1985 Pontiac Trans Am GTA w/ 5.7 Vortec 700r4
mild vortec 350 with 4 speed auto. performance suspension. factory gold color. project car
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