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Chevrolet Malibu Engine Problems

76 messages,  Last post on Oct 26, 2009 at 8:11 PM

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What is this discussion about? Chevrolet Malibu, Engine

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#32 of 76 Faulty Thermostat? by josephus Jan 03, 2008 (3:02 pm)
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?
#33 of 76 Re: Intake Manifold Gasket [barky] by myvassiliou Feb 02, 2008 (10:20 am)
Replying to: barky (Apr 06, 2007 7:39 pm) 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. Replies to this message: e_net_rider (Sep 15, 2009 3:34 am) Mr_Shiftright (Sep 15, 2009 7:25 am) e_net_rider (Sep 23, 2009 4:18 am)
#34 of 76 Re: 2000 malibu engine tapping noise [7589] by dgarr121451 Feb 11, 2008 (11:53 am)
Replying to: 7589 (Feb 13, 2007 8:53 am) 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. Replies to this message: civilcougar (Jun 10, 2009 7:38 pm)
#35 of 76 Engine RPM by jappetto Feb 11, 2008 (6:28 pm)
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?   Thanks,   Jake Replies to this message: gonogo (Feb 12, 2008 9:16 am) jappetto (Feb 12, 2008 1:46 pm) gonogo (Feb 13, 2008 9:22 am)
#36 of 76 Re: Engine RPM [jappetto] by gonogo Feb 12, 2008 (9:16 am)
Replying to: jappetto (Feb 11, 2008 6:28 pm) Sounds about right to me, the converter goes through a unlock and then lock phase. Replies to this message: jappetto (Feb 12, 2008 1:46 pm) gonogo (Feb 13, 2008 9:22 am)
#37 of 76 Re: Engine RPM [gonogo] by jappetto Feb 12, 2008 (1:46 pm)
Replying to: gonogo (Feb 12, 2008 9:16 am) 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? Replies to this message: gonogo (Feb 13, 2008 9:22 am)
#38 of 76 Re: Engine RPM [jappetto] by gonogo Feb 13, 2008 (9:22 am)
Replying to: jappetto (Feb 12, 2008 1:46 pm) 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.
#39 of 76 Engine temperature by nb25 May 22, 2008 (4:29 pm)
#40 of 76 Engine temperature by nb25 May 22, 2008 (4:29 pm)
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? Replies to this message: marked1 (Mar 08, 2009 9:18 am)
#41 of 76 engine makes loud rattling sound. by marked1 Mar 08, 2009 (8:40 am)
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.

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