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2003 Jeep Liberty Question: I have a popping sound inside my intake manifold 2003 jeep liberty limited

 

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sharonhardesty, Poland, ME, August 07, 2014, 10:42
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When you push on the gas the popping sound gets louder ( sound like a loud motor cycle) but doesn't have much power when your driving. So have not been able to drive it. I checked inside the oil pan to see if anything got loose or broke, it all looked good and clean. It has 139700 ml on it

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  • Answer #1

    G. T. Service Center (4218 Answers) , Stephenville, TX - (254) 638-3236
    ProfessorG August 07, 2014, 10:48
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    Which engine? 4.7L hope not.

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    sharonhardesty, August 07, 2014, 11:09
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    3.7L 6cyl

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    ProfessorG, August 07, 2014, 13:13
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    Possible cam followers or valve seats.

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    sharonhardesty, August 07, 2014, 13:37
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    I just drove it in yard it sounds like something is hitting inside the plastic intake manifold but runs good otherwise sounds almost someone banging on the inside of intake saying let me out

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    ProfessorG, August 07, 2014, 14:09
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    Smoke the intake for cracks. Still could be an open intake valve back fire.

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    sharonhardesty, August 07, 2014, 14:50
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    Do you know if the intake manifold comes apart in two pieces or it comes off in one piece

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    ProfessorG, August 07, 2014, 15:10
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    Upper is one piece plastic, molded.

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    sharonhardesty, August 07, 2014, 17:09
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    Thank you for your help. If I need more info I will contact you.

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    ProfessorG, August 07, 2014, 17:34
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    Ok

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    sharonhardesty, August 09, 2014, 16:02
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    I took off the intake manifold off and inside it was antifreeze. I lost my water pump and the engine was full of antifreeze. I replace the water pump and cleaned the motor. A week later that's when I started to hear the clunking noise. Is there away to clean the intake manifold or do I have to get another one?

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    ProfessorG, August 10, 2014, 08:55
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    Replace it with a new gasket.

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    sharonhardesty, August 10, 2014, 09:00
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    I was hoping I could get away from buying one. So there's no way to clean it

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    ProfessorG, August 10, 2014, 09:18
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    If your having problems, it's been my experience they will continue if you use the same plastic piece. Better safe then sorry. It is your time and money involved, your not doing it for a customer, try some spray carb cleaner to wash it and air pressure blower to dry it, use a new gasket, ant good luck. Just a learning curve to be learned.

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    sharonhardesty, August 10, 2014, 09:37
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    I'll try that and if it doesn't work I will purchase a new one. thank you

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