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Chevrolet Malibu Fuel System/Fuel Pump

Hello friends, I am new to this area, I ask for your understanding, as I dont know the " ropes " yet. my question is,,, what is the average life of the electric fuel pump, on a 00 malibu? I had one replaced at around 60,000 mi, a real spendy job at that,,, Thanks


  • It should last you at least to 200,000 mile mark. I bet they replaced your because the strainer was clogged. I have a 00' Malibu that had fuel pump problems a year ago. I pulled the tank myself after having the dealer take a look at the car and I found the strainer in the tank was clogged up and wouldn't let any gas thru. Here is my story: _roughly_and_slowly_dies.shtml
  • 2003 Malibu. Had to replace the fuel pump at 61,830 miles. Changed fuel filter @ 30,000 miles later. Car now has 110,000 miles and am told the fuel pump has failed again. Shouldn't fuel pumps last longer than this?

    Also was told that the intake manifold gasket was leaking coolant on the front and back (external leak). After searching this forum, it looks like this might be a common problem. Is there more to come on the top & bottom?

    Any thoughts?
  • gonogogonogo Posts: 871
    After market pumps can be a problem, go with Delco.
    Not sure your gasket question, but get them replaced.
  • I have a 2003 Chevy Malibu with 76,000 miles. The fuel sensor needs to be replaced (as verified by a dealership test). The dealership cost is $540. (The high price is due to the labor involved in dropping the tank.) A local garage will replace the entire fuel pump for $500. They say GM pumps have a "gold" metal that gets eaten away by gasoline. They say a Carter pump is better, cheaper, and will last longer. My questions: Should I just replace the fuel sensor, since that's the only problem right now? Or should I replace the fuel pump while the tank is dropped, with the assumption that the pump is nearing the end of its life?
  • gonogogonogo Posts: 871
    As a DIY I would just replace the sender. You are not doing the job so I would go with replace the pump. If it was my car I would put in another Delco pump. I can buy one for my truck for $228 and $12 for shipping.
    I once had a sender replaced under warranty on a Chevy Cavalier, the wait was less than 1 hour.
  • jingles99jingles99 Posts: 13
    Only 50000 miles, 2003. From what I have read in these forums and else where this is a common problem with this pump. Cost me $400 bucks to have a new pump put in. Of course they had to drop the tank, etc. Pump cost just under $300.
  • A class action lawsuit is nearing settlement in CA for the intake problem. I believe that it covers 2003 models as well. I had mine done three times.
    Look up Gibbs LLP in San Francisco.

    Malibus are junk. GM does not stand behind their product and that is a shame. I have always bought GM and this was my last one.
  • lostwrenchlostwrench Posts: 288
    Be sure you don't run the car with very little gasoline in the tank.
  • i'm a mechanic,and i found that IT IS A REPEAT PROBLEM w/ the intake gaskets. they are made of plastic. i just purchased a '99 malibu (3.1) for wife. the 2nd day i had it, it started leaking coolant from back of int/gasket. before i got it home,it started leaking INTO the i found that "fel-pro"makes a replacement kit,that is better(and more exp.too!) ,than factory. i put a set on mine, so far so-good. car only has 157xxxmls on it. you really must fix leak asap, or you will KILL the engine. good-luck; rick.
  • i just put int/gasket set on 3.1. now at times the engine will just rev-up to 1800-2000 rpm for no apparent reason.i have to resart car to get it to stop. it didnt do this before i put gaskets on intake. any clues out there??? thanks; rick-st.lo.,mo
  • can you tell me more about this "suit" going on w/ the int./manifolds? i have the same thing!!! need any info out there. thanks; rick
  • I did a search and found this:

    You'll have to read the details. It only applies to certain vehicles and not all leaks.
  • 05malibu05malibu Posts: 1
    Hi All - First time here, but I need help. I have a 2005 Malibu and I have approx 43k miles on my car. Today my baby is at Chevy getting another Fuel Pump. Yes! Another. I had one put in before the Manufacturers' warranty expired (36K ?)and now I'm told the same thing...."it was a faulty fuel pump".....What do I do? I don't know what I'm supposed to do to prevent this from happening! I use Chevron and Shell gasoline and rarely let it get below 1/4 tank.
  • bbrillbbrill Posts: 5
    Hello, you must have a intake air leak,,,, also form my past experience DO NOT use the stock gasket,,,, are you changing gasket due to water leaking? its a problem with these engines, mine happened twice, first time ruined the engine, second time right after installing new eng, the gaskets are worthless, and chevys update to it is no better,, Fel-Pro puts out a problem solver gasket, it was on back order when I was looking for one, but I found one in Mich, a eng rebuilder had some, so far its holding,the gasket looks so much better than the orig, hope this helps,,, but you are pulling in air somewhere I think for a runaway idle...... Brad
  • bbrillbbrill Posts: 5
    The original intake gaskets, as well as the " updated " one from chevy is no good, I found, Fel-Pro, makes a problem solver gasket, so far its holding, as I had two original ones fail, and a ruined moter becasue of this,
  • bbrillbbrill Posts: 5
    SOme say orig, Delco Pump others say carter ???
  • gonogogonogo Posts: 871
    I would say a bad batch of fuel pumps. What reason did the dealer give for such poor service?
  • At the time of my last posting, we had taken the car into a garage. They said the sputtering the Malibu was doing was due to the fuel pump failing (diagnostics). They replaced that, fixed the gasket leak, replaced spark plugs, and also replaced the thermostat. Since then we've drivien it @ 1000 miles. The other day as I was sitting at a light, the sputtering returned! It feels like something is missing or skipping - like it wants to stall but doesn't. It'll kind of sputter or jump a few times and then run fine. Previously it would do this randomly while driving as well as while idling. Any ideas????
  • gonogogonogo Posts: 871
    When was the throttle body cleaned last, intermittent ones are not easy to diagnosis.
  • camoguy1camoguy1 Posts: 1
    I have a 99 Malibu, 2.4L with 95,000 miles on it. I recently had the fuel lines changed on it. When the car was returned I filled the tank, and almost immediately the car started experiencing some hesitation while accelerating. This occurred while the tank was right full. As the level of fuel decreases, the hesitation seems to disappear. At 1/4 full tank the car ran perfectly. Once I filled the tank, the problem came back. The mechanic inspected it, took out the fuel pump and ran a pressure test on it. He determined the fuel pump was faulty so he replaced it. Filled the tank and it seemed to work fine. I just filled up the tank today and the problem is back! New lines, new pump, and new tank. Mechanic drove the car while it was experiencing this problem, ran multiple scans on it and everything came up clean. Determined it is not the ignition control module (already changed that a year ago). Does anyone have any similar problems? Suggestions?
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