Question about 2003 Chevrolet Monte Carlo

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Hello, I have a question. My Chevy Monte Carlo 2003 3.4, when I step on the accelerate and their a loud knocking sound and also the engine light blinks. Is that a sign that my engine is going out?

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  • Joey Wright
    Joey Wright May 05, 2015

    the loud knocking noise is probably one of your pistons missing it could be something serious or it could be something as simple as your spark plugs and wires are bad

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  • Master
  • 372 Answers

With the light blinking and an audible knock, I would say you definitely have a major prob,em

Posted on Apr 25, 2015

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  • Chevrolet Expert
  • 267 Answers

Is the noise their when you are sitting not in gear if yes it is a good chance that is no good if in gear it could be some thing in the drive line

Posted on Apr 25, 2015

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Posted on Jan 02, 2017

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SOURCE: my check engine light came on

Take it to autozone and get a free dianostic check with a scan tool. The code will point you in the right direction to diagnos the problem.

Posted on Jun 05, 2009

litoshop
  • 298 Answers

SOURCE: 2002 chevy monte carlo won't start

this vehicle is equipped with a factory anti theft system if when you try to start the engine and the anti theft light is on then the starter won't start even if your check engine light is not on you would have to scan the body module to pin point the problem to see if it's the anti theft system or the starter, go to a auto parts store like auto zone or pep boys or western auto these store offer free scanning to there customers. if this information has been helpful please let use know good luck

Posted on Jul 28, 2009

  • 574 Answers

SOURCE: I have a 2003 chevy

You can take the negative battery cable off that should reset it. If your having a light come on you are having a problem somewhere,clearing the light wont fix the problem . The light will probably comeback on after a while.

Posted on Aug 24, 2009

  • 750 Answers

SOURCE: check engine light blinking, engine is not

an ignition coil may not be firing, also one or more injectors may be disconected or loose check retainers and jacks and sucket

Posted on Sep 12, 2009

  • 249 Answers

SOURCE: 2003 Monte Carlo belt diagram

usually there is a diagram under the hood,have a computor? go to ask.com!

Posted on Dec 31, 2009

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Can you bypass a knock sensor on a 03 monte carlo 3.4 engine


You can never bypass a knock sensor. It will not run right if you try this

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If the code is 301 it means there is no power from that cylinder. It could be a problem with the ignition, fuel injector, or something mechanical.

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Starts the car and it was sounding like a knocking sound and now its jus sounding like a eeerrrrrrrrrrrrrring sound and the gears wont shift.........1999 chevy monte carlo


egr valve causes rough idling and stalling problems.check engine oil level could have low oil pressure.have vechicle code scan could have bad knock sensor.

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2003 monte carlo a/c works of and on,already put freon in twice and the security light omes on and also the traction active light comes on


Re the a/c. Get a can of red tek sealer. make sure the engine is cold or you won't get the connector on to the low side port to seal properly. Follow the insrtuctions that comes with the can. Just adding the refrigerant doesn't stop the leak

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2003 Chevy monte carlo 3.4L, need the torque


Check Autozone.com. There repair section should have the torque specs and order of tightening.

Mar 06, 2010 | 2003 Chevrolet Monte Carlo

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My 99 Monte Carlo LS has a problem i cant figure out, when i accelerate quickly something will let out a rapid loud clicking noise, if im stoped and turn and accelerate it usually wont do it, any ideas?


sounds like spark nock or cv axles, but if it dont click when u turn then it might be incorrectly gapped spark plugs , or bad wires. check your pluggs and wires.

Nov 03, 2009 | 1999 Chevrolet Monte Carlo

1 Answer

1998 chevy monte carlo ls 3.1 l , 6 cyl


That white cloud is caused by a blown head gasket, the knocking noise could be, a rod bearing, thrust bearing, somewhere in the valve train. Replace the head gasket and see if it still knocks, and change the oil and filter too. If it still knocks, than you have bigger problems.

Jan 31, 2009 | 1998 Chevrolet Monte Carlo

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