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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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#17 of 76
Re: Intake Manifold , blown Gaskets,heads & GM Coolant [ladymylady] by shadow5599
Jun 18, 2007 (9:59 am)
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Replying to: ladymylady (Jun 17, 2007 5:15 pm)

When you say "amps" I gather you mean volts. I suspect the probe was to measure voltage. Amps is a current rating which measures current flow whereas a voltage measurement is measuring the static voltage. I've never done it so I may be wrong but you may want to clarify that for others who read this.
#18 of 76
Re: Intake Manifold , blown Gaskets,heads & GM Coolant [shadow5599] by ladymylady
Jun 18, 2007 (11:12 am)
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Replying to: shadow5599 (Jun 18, 2007 9:59 am)

Perhaps I was not clear in what I wrote. That is not my post about the amps - it is a post I found on consumer affairs purporting to have solved the problem in his car, and I repeated it here... I'm not mechanical, I mean I can use a screwdriver and hammer, but am looking for opinions and advice about what to do myself about this dexcool problem.
 
 It's in the used car (2002 cadillac) I just bought and I see that the fellow who owned it had a blown piston and gasket ast 17,000 miles when it was brand new...had that replaced under warranty and then the hoses too...so I'm guessing he had the same problems.At 35,000 miles he had the car in 35 times......so it sounds to me like this stuff went all through his engine system into other systems too.
 
Just thought I'd be helpful and point people toward consumers affairs complaints which lists a litany of problems similar to that the other poster mentioned.
#19 of 76
Re: Intake Manifold , blown Gaskets,heads & GM Coolant [ladymylady] by shadow5599
Jun 19, 2007 (8:44 am)
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Replying to: ladymylady (Jun 18, 2007 11:12 am)

Oops...sorry for not paying attention. But yes, good information for people to know since the electrolysis problem is contributing to alot of leaking rads and heater cores. I first read about it on another forum, for another car of mine and I'm sure the measurement was in volts. One would need a fairly sensitive and accurate voltmeter to test such a thing.
#20 of 76
2005 Malibu start-up idle problem by carguy999
Jul 08, 2007 (12:32 pm)
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I drive a 2005 Malibu LT 6-cylinder with 33,000 miles that I've owned for a little over 2 years. It's been a great car -- up until now, the only problem I've had was a slight shudder in the brake pedal that was cured by resurfacing the rotors.
 
Lately, I've noticed that when I start the engine in the morning, it first idles very rough at low rpm, then suddenly shoots to over 2000rpm, then drops back down to 950rpm, all in 2-3 sec. After that, the idle is fine, including after being parked at work all day. I suspect the idle air control valve, but I'm curious if anyone else has had this problem and found the cause.
#21 of 76
Re: 2005 Malibu start-up idle problem [carguy999] by gonogo
Jul 09, 2007 (7:57 am)
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Replying to: carguy999 (Jul 08, 2007 12:32 pm)

No IAC, it has electronic throttle. Take it in, still under warranty.
#22 of 76
Re: 2005 Malibu start-up idle problem [gonogo] by carguy999
Jul 10, 2007 (3:42 pm)
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Replying to: gonogo (Jul 09, 2007 7:57 am)

Thanks for your reply. I'm planning to take it in, but I wanted to get some ideas first so my dealer can't try to sell me some useless remedy first (like cleaning the fuel injectors). I'll let you know what happens.
#23 of 76
Re: 2005 Malibu start-up idle problem [carguy999] by gonogo
Jul 11, 2007 (7:55 am)
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Replying to: carguy999 (Jul 10, 2007 3:42 pm)

Thanks, would be interested in knowing.
#24 of 76
Re: 2005 Malibu start-up idle problem [gonogo] by carguy999
Jul 15, 2007 (11:09 am)
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Replying to: gonogo (Jul 11, 2007 7:55 am)

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.
#25 of 76
Re: 2005 Malibu start-up idle problem [carguy999] by gonogo
Jul 16, 2007 (9:52 am)
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Replying to: carguy999 (Jul 15, 2007 11:09 am)

That's strange, Shell is a GM approved TOP TIER Detergent Gasoline.

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