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Chevrolet Malibu Engine Problems



  • gonogogonogo Posts: 869
    Thanks, would be interested in knowing.
  • carguy999carguy999 Posts: 9
    The idle problem with my Malibu appears to have been caused by the Shell regular gas I've been using. I switched to BP for my last fill-up and the problem immediately disappeared, but my fuel mileage also dropped 1 mpg. I plan to buy Shell again next time and see what happens.
  • gonogogonogo Posts: 869
    That's strange, Shell is a GM approved TOP TIER Detergent Gasoline.
  • I just had a new fuel pump and fuel filter replaced on my 2005 Chevy Malibu after the fuel pump went out coming home from vacation and 4 hours from my home. The gas tank had to be dropped and the tank was full of bad gas. They emptied and clean the tank, replaced the fuel pump and fuel filter and cleaned the injectors. On the way home from the repair shop the check engine light came on? What now? I check the gas cap lid and tightened it. BUT the light is still on! Help???
  • I let my sis drive my car and she didn't want to give it back. She didn't want to buy it either. so she says be careful what you back into as the cops and I get my car back. 5 months later I was bumper to bumper with my son's cadi and now I have no cruise control and the engine light is on and blinking. I took it to a shop and they said I should have no problems driving it this way for the next 1000 miles of my trip. Said I probably just bumped a sensor. My question is could my sister and her boyfriend have sabotaged my car and if so, how?? Please help - I'm on the road next Thursday.
  • gonogogonogo Posts: 869
    A blinking check engine means the catalytic converter may be damaged if the engine is not repaired ASAP.
    I could not understand a lot of what you wrote.
  • 5213252132 Posts: 62
    :lemon: :lemon: :lemon: :lemon: :lemon: :lemon: :lemon: :lemon: :lemon: :lemon: :lemon: :lemon: :lemon: :lemon: :lemon:
  • gonogogonogo Posts: 869
    ASAP " as soon as possible" The catalytic converter, which is in the exhaust system can be damaged by a faulty engine. Hence the blinking light and no cruise.
  • So, now that my 2005 Malibu reached 50,000 kms and 3 years (exactly); I'm having weekly issues, such that the dealership will soon know me by name.

    First, my remote start failed. Then I had a brake issue; and today I was driving home from work when I noticed my temperature gauge wasn't working at all. No big deal, I figured, I could get that looked at next time I pop in for service.

    When I dropped my carmate home, she noticed when she stepped outside that my car was unusually loud. Looked like the fan was going in overdrive. I drove home and when I shut the engine off I noticed the fan kept on going for about 20 seconds.

    I guess I'll take it in tomorrow....sound like a thermostat?
  • My 2003 malibu is currently sitting in my driveway like a piece of junk,
    the upper and lower intake manifold gaskets, and the exhaust manifold gasket, and the head cylinder gasket are shot, they all went in a short period of time. I have about 67000 miles on it. It is going to cost about 2grand to fix. It has something to do with dexcool eating the older gaskets. Many people are trying to get gm to acknowledge and fix or reimburse, but they are not budging.
  • Bought my 2000 Malibu LS used with 102,000 miles. That was 2 1/2 years ago. It now has 223,000 miles and still make a terrible tapping noise when you start it cold. But, it still gets almost 30 mpg consistently and takes me 160 miles roundtrip to work each day. The tapping is no big deal.
  • I own a 2004 Chevy Malibu w/ the 3.5L V6. When I am driving the car at about 35 mph and let off the gas to coast, the rpm naturally goes down to about 800 rpm. When i go to accelerate again the rpm revs up to around 1800 and then goes back down to normal rpm for accleration. Is this normal or should I be worried?


  • gonogogonogo Posts: 869
    Sounds about right to me, the converter goes through a unlock and then lock phase.
  • This only happens sometimes. Only certain times I drive the car, then the next time it might not do it. You feel a slight jerk when it revs up and then comes down. I am not sure if it is just at the shift points or what. I fugure if there are no lights on the dash that are on then I shouldn't be worried?
  • gonogogonogo Posts: 869
    Well the slight jerk does not sound right. That is one smooth transmission, the only time I get a rough shift is when down shifting the L under about 50 MPH.
    Take it in if under warranty, some codes will set without a light.
  • nb25nb25 Posts: 2
    My daughter bought a 2000 Malibu with 100,000 miles to drive and from college. It runs well but the temp gage seems a little high - in the 190 f range. The coolant level seems fine. Does this sound like a problem? Would a radiator flush help?
  • marked1marked1 Posts: 15
    2000 malibu 100k mileage suddenly started having loud rattling sound, engine
    light came on. Looked and sounded like engine misfire. checked the codes and came up with code P0304 cylinder #4 misfire. checked cylindrer 4 compression and spark-ok.
    Fuel injector found also warking. PUZZZLED. With the engine, running removed
    ignition wire from spark plug #4 -got electricuted ( DON'T DO THAT) but the noise
    gone- interesting. Removed front valve cover and found 1 bolt backed out from rocker arm hence not putting any pressure on the valve spring (not sure intake or exhaust) . it explains why cylinder comression was ok- the valve was closed all the time. torqued the loose bolt and installed front valve cover. started up and it's fixed.
    Why the rocker arm bolt was loose- probably because it wasn't torqued wright when
    lower intake manifold gasket was replaced in 2002 by an independent repair shop.
    that's my 2 cents. Have a great day.
  • marked1marked1 Posts: 15
    So your temp gauge shows a tad over long middle mark (180 f). you might need
    to addres this issue before it gets bigger. Radiator flush- big no no. if it was my car
    i would replace thermostat and coolant as preventetive maintenance. you are better
    of to use a-c delco thermostat and match the coolant that you are having now, most
    likely red colored dex-cool. ( be 100% sure not mix different coolant types).
    Next, is your engine overheating when driving at free way speed or idling, let me know.
  • beldaranbeldaran Posts: 3
    Every once in a while my 2001 Malibu would idle really high, where I had to stomp on the breaks to keep it from lurching forward at a stop light. We're talking 2000 rmp when stopped. I tried to take it in twice and it quit doing that before I got it in, so no one knows what was wrong with it.

    Now the issue is back, combined with what seems to be the opposite problem, when accelerating, I can't get it to go past 45mph on occasion. I can get the rmp up to 5000, but I'll be stuck at 45. I'll let off the gas completely, the car will lurch a bit, and then I can coax it up to 50 or so. Then it may do it again, or it may accel. smoothly up to 60 for me.

    Anyone have any ideas on where to start looking on this one? Are the issues related at all?
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