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I have a 2001 Chevy Malibu automatic when it is in first and second gear it makes a knocking sound but when it shifts to third gear it stops I don't think it's a rod knocking because it isn't consent

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  • Cars & Trucks Master
  • 1,867 Answers

More information is needed to help with this.

1. Is the knocking coming from the engine, the transmission or elsewhere?

2. If you believe it is from the engine, start the motor and put the auto in neutral and gradually depress the accelerator pedal to gently increase the engine speed for 2 minutes. If you can replicate the knocking noise then obviously it is engine.

3. If the knocking is from the engine check the engine oil level which you should be doing frequently anyhow to ensure you top it up and do not run the oil level low and destroy the motor. (Failure to have the engine oil changed at the required intervals can also result in excessive wear and damage to engine components.) If you do this check and find the oil level is very low then advise here when you repost your query with more information about the source of the knocking sound.

4. Also indicate in your post what grade (octane rating) of fuel you are running the engine on.

Posted on Apr 15, 2014

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Posted on Jan 02, 2017

  • 109 Answers

SOURCE: 1978 chevy k20 4x4 truck

try checking your vacume lines..

Posted on Dec 02, 2008

  • 3 Answers

SOURCE: Chevy venture 2004 Transmission

Bring to tranny shop or repair shop, have it scanned for trouble codes, many electrical parts and solonoids in those trannys, possible it may just be a shift solonoid bad or needs adjustment, much cheaper than replacing tranny. good luck!

Posted on Feb 09, 2009

localwonder
  • 6784 Answers

SOURCE: Hi, I have a 1998 Chevy 3/4 ton 4x4, automatic

Yes, you are correct. i would change the filter as well. check the torque converter for stress.

Posted on Feb 28, 2009

  • 295 Answers

SOURCE: 2001 Yukon XL SLT 4 speed Auto Transmission shift problem!

Sam,

I would start with a transmission fliud and filter service.

I would then have the trasnmission checked out by a transmission shop. The transmission most of the time has the direct drum band is starting to go. The shops can rebuild it no problem, This is a very common failure wiith the trasnmission.

Good Luck

Posted on Aug 16, 2009

Testimonial: "Thanks alot richtko94'! I'll try that!"

  • 1 Answer

SOURCE: MY TRANS WONT SHIFT INTO THIRD GEAR UNTIL IM DOING 45 MPH

Most likely your shift cable (from the selector to the transmission) is worn, maybe needs lubrication. Mine had a similiar problem, but had to shift it into neutral and back up to get it in reverse. A new shift cable solved the problem.

Posted on Oct 08, 2009

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Please rate this answer. Thank you.

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1 Answer

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