05-23-2009, 12:32 AM
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#1
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GLS member
Join Date: Jun 2007
Location: Utica, Michigan
Posts: 2,227
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Last Ditch Effort... i really need alero help.
ok guys, i'm in need here and I'm hoping I can get some answers because i'm losing hope in my dying alero.
i'm gonna break it down into sections of issues. here I go.
mechanical problems:
Problem 1:
code P0442: definition: BBEVAP (evaporative emission system) small leak/ no flow condition
code P0440: definition: BBEVAP (evaporative emission system) small leak/ no flow condition
**I know these aren't serious but they keep my "SES" light on, and i don't know if something serious is actually happening, so i would like it to be fixed. I have already replaced the gas cap with no luck.
Problem 2:
When the car is cold, it accelerates fine. I suspect i need a new thermostat because the car always stays at or slightly above the 1/4 mark and rarely gets over the 1/2 mark. So, when the car gets close to the 1/2 mark, it begins accelerating terribly. After shifting into 2nd gear, the rpms go nuts where they increase, stay constant, increase, stay constant, ect. this all happens with the gas pedal held constant for any somewhat-quick acceleration. the car accelerates in a jerky manner and is feels as if its bogging down. I've been told it could be the following: bad TPS sensor, bad MAF sensor, clogged cat, or a bad torque convertor. any ideas?
**this is the single worst problem I am experiencing with the car right now.
problem 3
when running, car emmits a higher-pitched metal grinding/chattering sound. I cannot figure out what it is but it sounds bad.
problem 4
after car is warmed up, power steering does not work right. fluid at correct level is somehow overflowing the resivor and it is very difficult to turn the steering wheel when car is warm.
problem 5
coolant light comes on when car is cold and shuts off on its own. fluid level is correct and no loss of fluid is apparent
problem 6
my rear brakes squeal when i apply them in moderate breaking situations. also, when it rains, my brakes feel very very unresponsive and take awhile to "grab". if i hit the brakes as hard as i can, they still don't grab and my ABS will engage but makes the situation even worse. they never did this before (p.s. the pads and rotors were replaced early last summer and are not worn out)
structural problems:
my car has some suspension-related problems
problem 1:
last winter I slid off the road into a ditch and a tow truck pulled me out. I remember him hooking the tow strap to a metal arm going from the center of the back of the car to the driver side back tire. i think this is a control arm? anyway, during a recent tire rotation, i noticed that the bar is completely collapsed and I am wondering if this is why the rear of my car has been difficult to handle in rainy/snowy conditions due to misalignment. what is this part and how do I replace it?
problem 2:
car has a terrible creaking noise when I turn corners
appearance problems:
problem 1:
my car is rusting. badly. its on the inside bottom of all my doors and around inside trim of my hood and trunk. why is it doing this and how can i stop it?
problem 2:
my car was crashed before I bought it and the rear bumper that replaced the original seems to be rubbing on the metal it meets, causing a no paint situation and rust. My trunk latch hook is also rusting off. how do I remove the rear bumper to repair these problems?
I'd like to thank everyone in advance. If you have any insight to the problems I am describing, please give all available info!
I guess i've fallen out of love with my alero and it just may be time to say goodbye if it proves to be expensive problems. Its a great car, just mine is simply tired out.
__________________
2000 Chevrolet Malibu LS
2000 Oldsmobile Alero GL (sold)
Last edited by TheEdgeofSanity : 05-23-2009 at 12:58 AM.
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05-23-2009, 12:52 AM
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#2
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GL Member
Join Date: Apr 2009
Location: Minnesota
Posts: 235
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I'm experiencing an evap leak as well, I suspected it might have been the fuel cap as the light usually came on after getting gas. Replaced the cap with no luck. As far as the rust goes you can try putting a bit of oil on it, that will stop oxygen from reaching it and making it worse.
__________________
2K 3.4L 4DR GLS
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05-23-2009, 12:54 AM
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#3
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Aleromod part owner
Join Date: Nov 2003
Location: Far Northeast Philadelphia, PA
Posts: 18,199
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Quote:
code P0442: definition: BBEVAP (evaporative emission system) small leak/ no flow condition
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Usually mean the gas cap is not seated right, might need a new one, 440 code, don't know, Google it
Quote:
When the car is cold, it accelerates fine. I suspect i need a new thermostat because the car always stays at or slightly above the 1/4 mark and rarely gets over the 1/2 mark. So, when the car gets close to the 1/2 mark, it begins accelerating terribly. After shifting into 2nd gear, the rpms go nuts where they increase, stay constant, increase, stay constant, ect. this all happens with the gas pedal held constant for any somewhat-quick acceleration. the car accelerates in a jerky manner and is feels as if its bogging down. I've been told it could be the following: bad TPS sensor, bad MAF sensor, clogged cat, or a bad torque convertor. any ideas?
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Sounds like a bad MAF to me. Had the same problems, replaced the MAF, but damn the car didn't like it at first
__________________
33% ALEROMOD OWNER!!
2000 Olds Alero 3400 SFI 14.53 @ 94.93
1985 Olds Delta 88 307 SBO 17.96 @ 76.99
2007 Volvo V50 T5 6M 15.782 @ 89.12
www.facebook.com/kb0177
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05-23-2009, 01:30 AM
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#4
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Moderator
Join Date: Nov 2004
Location: Long Grove, IL
Posts: 5,002
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Quote:
Originally Posted by GM
DTC P0440 Evaporative Emission (EVAP) System
System Description
The control module tests the evaporative emission (EVAP) system for a large leak. The control module monitors the fuel tank pressure (FTP) sensor signal to determine the EVAP system vacuum level. When the conditions for running are met, the control module commands the EVAP canister purge valve OPEN and the EVAP vent valve CLOSED . This allows engine vacuum to enter the EVAP system. At a calibrated time, or vacuum level, the control module commands the EVAP canister purge valve closed, sealing the system, and monitors the FTP sensor input in order to determine the EVAP system vacuum level. If the system is unable to achieve the calibrated vacuum level, or the vacuum level decreases too rapidly, this DTC sets.
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I'd check for leaks or a break in the EVAP lines.
__________________
Cliff Scott
2004 Alero GX w/sport pkg - Sold, living somewhere in WI now.
2011 Saab 9-5 Turbo4 M6
2004 Corvette Convertible M6
1994 Chevy Beretta - Quad4/M5
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05-23-2009, 08:43 AM
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#5
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GLS member
Join Date: Jun 2007
Location: Utica, Michigan
Posts: 2,227
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Quote:
Originally Posted by Cliff8928
I'd check for leaks or a break in the EVAP lines.
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how do I do this? what does the EVAP system look like?
__________________
2000 Chevrolet Malibu LS
2000 Oldsmobile Alero GL (sold)
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05-23-2009, 09:54 AM
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#6
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636 whp
Join Date: Aug 2006
Location: AZ
Posts: 11,893
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Quote:
Originally Posted by TheEdgeofSanity
Problem 2
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Torque converter clutch.
Quote:
Originally Posted by TheEdgeofSanity
problem 3
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A/C clutch.
Quote:
Originally Posted by TheEdgeofSanity
problem 5
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Sensor.
Quote:
Originally Posted by TheEdgeofSanity
problem 6
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Low fluid.
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05-23-2009, 09:58 AM
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#7
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Gone
Join Date: Mar 2004
Location: Lockport Ny
Posts: 19,244
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sell nate your car for an epic gain... buy new. too many problems to be worth it.
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05-23-2009, 07:38 PM
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#8
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GLS member
Join Date: Jun 2007
Location: Utica, Michigan
Posts: 2,227
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Quote:
Originally Posted by cherrington17
sell nate your car for an epic gain... buy new. too many problems to be worth it.
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lol, funny thing is that he WANTS my car. i don't even know how i'm going to sell this thing without putting money into it to get a decent amount back...
__________________
2000 Chevrolet Malibu LS
2000 Oldsmobile Alero GL (sold)
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05-23-2009, 07:47 PM
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#9
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GLS member
Join Date: Jun 2007
Location: Utica, Michigan
Posts: 2,227
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i think since i'm now on summer vacation, i'll take it to a mechanic for the hesitation problem. i'm really hoping it isn't the torque convertor because that sounds super expensive to fix. i don't understand why it only happens when the car is hot because everything i've read about torque convertor failure says its worse when cold or at all operating temperatures. car runs fine when cold.
grr....
__________________
2000 Chevrolet Malibu LS
2000 Oldsmobile Alero GL (sold)
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05-23-2009, 08:25 PM
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#10
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Gone
Join Date: Mar 2004
Location: Lockport Ny
Posts: 19,244
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if your on summer vaca.. its the best time to learn how to fix it yourself.
lots of free time!
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05-23-2009, 10:08 PM
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#11
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GLS member
Join Date: Jun 2007
Location: Utica, Michigan
Posts: 2,227
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i don't have the tools or know-how on how to remove a transmission. i want to take it for a diagnosis so i have a professional opinion of what is wrong before I go replacing everything with no results.
__________________
2000 Chevrolet Malibu LS
2000 Oldsmobile Alero GL (sold)
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05-23-2009, 10:54 PM
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#12
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Now a Ford Traitor.
Join Date: Mar 2008
Location: Greenland
Posts: 6,996
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replace MAF to fix transmission problem
__________________
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05-24-2009, 10:38 AM
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#13
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636 whp
Join Date: Aug 2006
Location: AZ
Posts: 11,893
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Quote:
Originally Posted by TheEdgeofSanity
i'm really hoping it isn't the torque convertor because that sounds super expensive to fix.
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Torque converter CLUTCH. CLUTCH! Not the torque converter! This is just a tiny solenoid that locks the torque converter to the engine so it's directly connected like a manual. Small fix.
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05-24-2009, 10:42 AM
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#14
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Now a Ford Traitor.
Join Date: Mar 2008
Location: Greenland
Posts: 6,996
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Quote:
Originally Posted by [ion] C2
Torque converter CLUTCH. CLUTCH! Not the torque converter! This is just a tiny solenoid that locks the torque converter to the engine so it's directly connected like a manual. Small fix.
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hahah, MAF and the clutch
fix and be happy
__________________
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05-24-2009, 02:55 PM
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#15
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Moderator
Join Date: Nov 2004
Location: Long Grove, IL
Posts: 5,002
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Quote:
Originally Posted by [ion] C2
Torque converter CLUTCH. CLUTCH! Not the torque converter! This is just a tiny solenoid that locks the torque converter to the engine so it's directly connected like a manual. Small fix.
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The torque converter clutch is inside the torque converter. What you're referring to is the torque converter clutch solenoid.
__________________
Cliff Scott
2004 Alero GX w/sport pkg - Sold, living somewhere in WI now.
2011 Saab 9-5 Turbo4 M6
2004 Corvette Convertible M6
1994 Chevy Beretta - Quad4/M5
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05-26-2009, 09:25 PM
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#16
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GLS member
Join Date: Jun 2007
Location: Utica, Michigan
Posts: 2,227
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so... bottom line, do I have to take apart my transmission? i really dont want to have to do that. also, how do I get the MAF out of my car? i'm afraid to go pulling on it because that usually results in more things breaking.
__________________
2000 Chevrolet Malibu LS
2000 Oldsmobile Alero GL (sold)
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05-26-2009, 10:13 PM
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#17
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Gone
Join Date: Mar 2004
Location: Lockport Ny
Posts: 19,244
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MAF is cake.
Where your air intake comes in, there is a big square piece w/ some wires connected to it. Unplug the harness, remove the 4 hex screws. MAF pulls right out. Spray with carb cleaner, reinstall.
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05-26-2009, 10:28 PM
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#18
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Now a Ford Traitor.
Join Date: Mar 2008
Location: Greenland
Posts: 6,996
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i will post a tutorial....
__________________
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05-26-2009, 10:41 PM
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#19
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Soon to be banned again
Join Date: Nov 2005
Location: Bellmore, NY
Posts: 3,372
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eh im bored ill help out:
Quote:
Originally Posted by TheEdgeofSanity
When the car is cold, it accelerates fine. I suspect i need a new thermostat because the car always stays at or slightly above the 1/4 mark and rarely gets over the 1/2 mark. So, when the car gets close to the 1/2 mark, it begins accelerating terribly. After shifting into 2nd gear, the rpms go nuts where they increase, stay constant, increase, stay constant, ect. this all happens with the gas pedal held constant for any somewhat-quick acceleration. the car accelerates in a jerky manner and is feels as if its bogging down. I've been told it could be the following: bad TPS sensor, bad MAF sensor, clogged cat, or a bad torque convertor. any ideas?
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you can throw IAT into the mix aswell, its really hit or miss with these sensors.
Quote:
Originally Posted by TheEdgeofSanity
when running, car emmits a higher-pitched metal grinding/chattering sound. I cannot figure out what it is but it sounds bad.
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bad wheel hub/axle/cv joint or maybe something more simpler, maybe your wheel hub metal piece is rubbing against your rotor causing the annoying noise.
Quote:
Originally Posted by TheEdgeofSanity
coolant light comes on when car is cold and shuts off on its own. fluid level is correct and no loss of fluid is apparent
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bad coolant level sensor/short in the wire, i would see if you can get the actual plug that goes to the sensor and replace the sensor itself and splice in a new connector to it.
Quote:
Originally Posted by TheEdgeofSanity
last winter I slid off the road into a ditch and a tow truck pulled me out. I remember him hooking the tow strap to a metal arm going from the center of the back of the car to the driver side back tire. i think this is a control arm? anyway, during a recent tire rotation, i noticed that the bar is completely collapsed and I am wondering if this is why the rear of my car has been difficult to handle in rainy/snowy conditions due to misalignment. what is this part and how do I replace it?
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your trailing arm is probably bent and your rear wheels are not correctly positioned (one is more towards the front of the car then the other)
Quote:
Originally Posted by TheEdgeofSanity
car has a terrible creaking noise when I turn corners
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this could be from your upper strut mounts, if they are shot it will only make the noise at very low speeds. (ex. backing out of your driveway or making a 3 point turn)
Quote:
Originally Posted by TheEdgeofSanity
my car is rusting. badly. its on the inside bottom of all my doors and around inside trim of my hood and trunk. why is it doing this and how can i stop it?
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this is caused from shitty car washes, when you wash your car you should be cleaning inside your door jams and not letting that water sit in there because it will rust away at the car, the only thing you can do is spray it with 415 and this will stop the rust in its tracks and prevent it from getting worse
__________________
I shaved my balls for this?
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05-27-2009, 08:38 AM
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#20
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Now a Ford Traitor.
Join Date: Mar 2008
Location: Greenland
Posts: 6,996
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Let's See,
NEW: MAP, IAT,
Clean: MAF
there is your tranny problem
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