My 2004 Ford Explorer started making a knocking noise

Asked by Apr 18, 2014 at 07:25 AM about the 2004 Ford Explorer XLT V6 4WD

Question type: Maintenance & Repair

all of a sudden but the car isn't running any differently the car runs fine and sometimes the noise will stop for a 5 or 10 minutes and then come back again. The car never over heated or was low on oil. I took it to a mechanic and he says I need a new engine I just dont understand how this can be especially since there doesn't seem to be anything wrong with the car except for this knocking noise.the fluid levels are all good, no overheating, nothing any idea what it could be?

4 Answers

1,035

your knock sensor is going out, also could be a bad lifter. go out and buy a bottle of marvel oil. pour half of the bottle in the oil. drive it for a few days and if you hear it still then take it in for a full oil change. when the oil is new. only put in 4.5 quarts then add 1 full bottle of marvel oil additive.

1,305

And don't forget to find a new mechanic.

20,170

Cam chain makes the same noise, if the setup (2) one front and one rear is the same as the 2003. Engine has to come out of the vehicle to change the rear one and guides.

I have a 2004 Ford Explorer and it's making like a ticking noise around by the motor but I don't know where it's coming from or what it is and then like when I put my foot on the gas it sounds like a plane taking off and then then that will stop but it happens every time I put my foot on the gas but the ticking noise just keeps going on it on it on and it just started like that when I had like my water pump and my radiator changed it's like a rattling noise sometimes a ticking noise I need help I don't know what it is it's in my motor I hope not

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