Question about Hummer H3

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Can i incorrect ntake manifold replacement cause oil loss in an H3?

ENgine light came on, took the H3 to Big O who decided after being at a loss for a whole day my intake manifold had to be replaced. Two days after picking up my H3 white smoke camoe out of exhaust, this happens sporadically and now I'm losing oil internally.. Big O swears it's not their fault, and now says I have to take it someweher else for a diagnostic. Does anyone have any idea? I've been told the gasket in the intake manifold isn't sealing or the part wasn't propeely installed and is causing this problem. I have spent so much moeny and still am at a loss and so stressed out

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  • Jeremy W.
    Jeremy W. Feb 08, 2012

    what year, what engine?

  • jamie ervin Feb 09, 2012

    Thanks Jeremy it's a 2006 Hummer H3, 5 cylinder engine.Has 103k miles. Just had the 100k mile service in November, I always get the recommended services and oil changes. The Big O mgr says he has a "buddy" that works at Chevy and
    said that Big O replacing the intake manifold wouldn't cause these problems or the H3 would be idling harder. A friend of mine that used to work on cars said that is not true, and because the pcv isinside the part it could either be defective or the intake not installed correctly. All I know is that I didn't have any problems like this until they did the repair. BTW they had my H3 for a day and a half trying to figure out the problme from the engine light coming on, and then decided it was a vacum leak nad the intake had to be replaced. It cost me over $800 and I'm still losing oil. I guess I'm going to have to try and save up money and go to the Hummer dealer and pay all over again. Since there is no engine light I don't see how they can do a diagnostic because there is no error code.

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  • Hummer Master
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If the job wasn`t performed properly,surfaces not cleaned properly,surfaces not checked for damage or warpage then yes it can cause oil consumption as it creates a vacum in the engine were the oil is and its sucked up into the intake manifold and drawn into the combustion chamber and burnt causing smoke out the tailpipe.it can burn oil without the smoke being noticed in small amounts until you check the oil level.ususallly a leaking intake gasket will cause an engine to run different,rough idle slow acceleration at times,hesitation as examples.unfortunatly these cars are expensive to repair at times.is this big O a reputable shop or just the cheapest shop you could afford,this could be why they don`t want to check it out and find the problem.

Posted on Feb 08, 2012

  • jamie ervin Feb 09, 2012

    Thank you. I'm just trying to keep the oil level up and work enough overtime to take it to Hummer/Chevy to be repaired. Of course Big O says if it is determeined that it was due to their work they will reimburse me...yeah sure..in themean time I have to find a solution before more damage is done. Thanks again for your input

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  • Hummer Master
  • 5,370 Answers

Yes it can leak,its possible.Its suggested to click the link below and follow the troubleshooting procedure:-----Oil pouring out from left front of engine? http://schematicsdiagram.blogspot.com/2012/01/oil-pouring-out-from-left-front-of.html Common Causes of Car Oil Leaks? http://schematicsdiagram.blogspot.com/2011/12/common-causes-of-car-oil-leaks.html Troubleshoot Car Oil leak? http://schematicsdiagram.blogspot.com/2011/12/troubleshoot-car-oil-leak.html
---------Car oil leaks from valve cover gasket? http://schematicsdiagram.blogspot.com/2011/12/car-oil-leaks-from-valve-cover-gasket.html
---------This will help.Thanks.

Posted on Feb 08, 2012

  • Jeremy W.
    Jeremy W. Feb 08, 2012

    the asker said it is using oil internally. your solutions only provide generic external leak solutions?

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