Posted: Oct 06 2007 at 1:48pm | IP Logged

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ahs46;
hey I went to Amarillo High School in '53  ahs53

Welcome to the group!

A clicking noise may be a blown gasket, cracked exhaust manifold or a sticky valve. In most engines pre-ignition (pinging) is more of a rattling sound. The fuel is exploding rather than fast burning correctly. If it's pinging get it fixed soon! Causes can be bad timing, knock sensors, carbon build up and rotten gasoline.

Please inform us which engine you have … guessing it’s a 3.3... someone else may have better info..

It would be nice if our members would add their vehicle information to their signature (similar to mine) plus add their City and State . A member in the same town might be willing to drop by and help you with a problem. Or drink all your beer!

Posted: Oct 07 2007 at 3:01pm | IP Logged

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ahs46;

... I’d look at the tail pipe black soot buildup and pull a couple of spark plugs to see if there is any sign of carbon deposits. Ether way I’d try a fuel additive like Lucas or Techroline and not use full engine power for several hundred miles giving the stuff time to work.

... Another would be to try Seafoam that you pour in the intake with the engine revved up to prevent it from dieing. Seafoam will cause a lot of smoke…

These remedies will in time clean plugs, EGR systems, fuel injectors, intakes, valves, and firing chambers.

If an engine has carbon buildup it can raise the compression ratio causing pinging, and it can glow red hot causing pre-ignition.

Remember don’t let it ping too much or you’ll need new pistons

Posted: Oct 31 2007 at 2:12pm | IP Logged

is it hard to replace a knock sensor on an 02 v6, does anybody have any idea how much it would cost to get a new one put in??

Posted: Nov 07 2007 at 10:25am | IP Logged

I got a bad knock sensor computer read out on mine, but they couldn't tell me if the knock sensor was actually bad or if it just adjusted the timing last time I was pulling a load.  On my 2000 3.3L the knock sensor is under neath the intake manifold.  So it's a 3 second plug to pull out and replace, but to get to it, you have to remove the intake and other items in the way. 

You should test your knock sensor before you order a new one to replace it.  I seem to recall the way to test it is to run a multimeter from pin 64 to ground.  Let me see if I can find the "official instructions."  Ah.  Found it.

Cheers,

:Isaac:

1. Turn ignition switch “OFF”.

It is necessary to use an ohmmeter which can measure more than 10 MΩ.

Approximately 500 - 620 kΩ [at 25°C (77°F)]