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Sedans Chevrolet Malibu Chevrolet Malibu Fuel System/Fuel Pump
42 messages, Last post on Nov 07, 2009 at 11:58 AM
You are in the Chevrolet Malibu Forum. Your Hosts are pat & karens
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| Waited too long and can't find posts about the gm fuel gauge sending unit. Previously posted about switching from chevron to shell and the gauge did'nt ding and go to low warning. That was an aberration. Continue to have the problem. Remember that one poster just doesn't fill up the tank completely and doesn't have the problem. Noticed that while driving for some time after the fill up, or after using some amount of gas, the problem goes away. One time while driving after a fill up saw the gauge move to half then creep up to full. The sickening part was finding the tsb posted somewhere and discovering that our 2006 H3 was in the list for this multi-year gm issue. | |
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Replying to: 2000malibu (Mar 28, 2008 4:39 am) gulick21  comcast.net
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have a 2005 malibu that has just started a rough idle or missing in the engine. more noticable while in gear.will do it sometimes and then it won't.it will start and go away within the cycle of a stoplight.any suggestions would be helpful.i think it is water in gas tank.please tell me if i'm wrong.
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Replying to: ahinson (Sep 29, 2008 12:34 am) 
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Can anyone tell me if water in the gas tank was the problem? I am having the same issue. HELP!! Any insight is appreciated. have a 2005 malibu that has just started a rough idle or missing in the engine. more noticable while in gear.will do it sometimes and then it won't.it will start and go away within the cycle of a stoplight.any suggestions would be helpful.i think it is water in gas tank.please tell me if i'm wrong. Replying to: ahinson (Sep 29, 2008 1:34 am) my malibu has just started running rough or missing.most noticable when in gear.RPM'S go up and down when stopped in gear.it will do it one day and not the next.it will also go away and come back within the cycle of a stoplight.i think it might be water in the gas tank.i cannot feel it above 1500 rpm's. |
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I replaced the pump and then found it still didn't work. Upon inspecting the electrical system again, which was also done before hand... the pump began working. After a few days there was a knocking or clunking sound from the rear of the vehicle when the car was turned off. This was also present before the replacement. Now the pump no longer works again. The relay was swapped out and there appears to be no problem in the electrical. I have not confirmed power through the relay from it's source as I have no diagram yet. Has anyone experienced this yet? I am going to the dealer later to get a wiring diagram for the relay source ... there has to be a problem in the power source of some kind. |
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Replying to: cavey (Nov 25, 2008 10:11 am)
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i have 2001 malibu LS with the infamous 3.1 V6. i bought it with 55,000 mi. and now has 135,000 mi., i dealt with the passlock ignition problem long ago, $500 and a new ignition and all is well. Was having lack of power problems, took to chevy stealership and paid $350 for "pressurized fuel system/fuel injector cleaning" which helped for about 2-3 weeks then performance got worse. i had the catalytic converter repalced and immidiately the car had more power and response than it did when i bought it and kept getting better. then other problems arised, including the "wont idle down", car dies while driving, ran out of gas with little more than 1/4 tank of gas, and most repeated is randomly have to start car with foot on gas pedel, especially at higher altitudes, recently the car will NOT start unless given gas, also will not idle on it own, she runs fine and drives fine until you take your foot off the gas then it will either struggle to to stay running and die or dies instantly. did fuel pressure test with adequate results, repalced EGR valve, no effect. replaced MAF sensor which just recently caused check engine light, (check engine light never comes on), no effect. did cause check engine light again after resetting ECM. i did have bad alternator, repalcement of it, no effect. i did get it to stay running for about 5 mins on its own, after starting kept at 2000 rpm for 5-7 mins but ended with same results, Now i do have the famous manifold gasket leak. just cant afford $700-$1000 repair right now. also have done recent tune-up, new spark plugs/wires, repalced TPS sensor and IAC valve within last 12-15 months ago. im out of money and paitence, any help will be appreciated |
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I have a 05 malibu and i put gas in it and it runs rough for a few minutes then it levels out and runs good until i gas up again. it is setting a evap code for a unpuged condition. for the fiurst time sence this started it ran rough yesterday when I first started it I changed the gas cap like it said it needed.any sujestions
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Replying to: thames77 (Dec 26, 2008 8:19 am) |
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