Mechanical knocking or clicking noise during lowspeed turns 1996 840 wagon

clunch ? clutch Are those P codes ? P0327 an P0336
The knock sensor is a piezoelectric device that produces an output voltage based on mechanical engine vibration. The PCM will retard the electronic spark timing on the signal being received. The knock sensor produces an AC signal. The amplitude and signal frequency is dependent upon the knock level. During normal operation, the knock sensor system attempts to filter out all engine noise that is not caused by spark knock. The diagnostic test for DTC P0327 turns OFF all filtering during the first 20 seconds of engine run time. If a sufficient amount of noise is detected during the 20 second test, the diagnostic passes. If no noise is detected, the diagnostic fails. Since DTC P0327 is a type B code, the diagnostic must fail during 2 consecutive ignition cycles to set the DTC.
DTC P0336
The crankshaft position (CKP) sensor defines engine position by generating an electrical pulse each time it passes by a notch of the crankshaft reluctor wheel. The PCM uses crankshaft sensor pulses for fuel delivery and spark timing.

How many miles on engine? Was oil changed after it ran hot? Install a good mechanical oil pressure gauge to see what is really going on. Also might use length of hose put one end in ear and listen with other end to locate exactly where noise is coming from. BE CAREFUL NOT TO STICK HOSE INTO SPINNING PARTS. If noise is from bottom of engine bearings may be shot. However, it could be mechanic left some part loose and that would be an easy fix.

It sounds like one of your CV (constant-velocity) joints is going bad. This is common on front wheel drive vehicles. The CV joint allows the drive axle to pivot as you turn the wheels. Over time the protective boots crack, the grease leaks out and you end up with the knocking noise you describe when turning while accelerating. The dealership should easily be able to inspect the CV joint boot and diagnose the CV joint.

Hi there,

it could be:

>wheels rubbing on inside of wheel arch
>steering linkage hitting something

Try putting the car on a lift/ if you can, and get someone to steer it full lock to full lock both sides whilst you observe the steering mechanism, then you might be able to see what's happening.

Have a nice day :)

i would suspect that you have damaged a drive coupling ,now this could still drive for the next ten years like this with a slight knocking noise ,my own escort has done it ever since i have had the car and its not dangerous and will not fall apart but for your own safety ask a local mechanic to have a drive for you and see what he says as it could be something more serious .But if its just the universal coupling then ignore it as it will not hurt but noise does scare some people but if it is this then it will not hurt honest

CV joint sounds about 99.9% Correct.

A CV joint - when going bad - is more of a clicking sound.. Not so much a knocking sound.. And tends to get louder when turning & accelorating..

Hope this helps !!
Rate me good ;o)

Why don't you believe your mechanic? He is correct.

Check the boots at the ends of the front axles...If one is torn the joint has likely failed and needs to be replaced.

You have a Lifter and Rocker Arm Tapping. You will need to Take off the Valve Covers and Listen for the Tap. When you Locate it Tighten Down Until it stops and then Back it off 1/8 of a Turn.