Ticking/Clicking Noise When Accelerating

[dr. d]

changed oil and filter, air filter, spark plugs and caltex gold na but andun pa din yung clicking noise although very very faint. can only be heard pag walang radio and medyo tahimik ang environment sa labas. possible kaya that it has something to do with the cam chain or its parts? everytime kasi na dadalhin sa talyer ayaw lumabas yung ingay. nawawala yung ingay if either diinan or bitawan ang gas pedal.

i think it's engine ping. ( pre-ignition, or "tope" in the vernacular). it comes out when the engine is challenged (during acceleration or when going up an incline).
possible causes / solution:
1. low octane fuel. switch to higher octane fuel. your manual should indicate minimum octane requirement. you might also consider filling up at another gas station for a while..
2. ignition needs to be adjusted. consult! (note: some cars automatically adjust ignition timing to fit the fuel used.)
3. dirty cylinders. have 'em cleaned, either manually (open the engine!), or using fuel additives (there's a lot of them in the market, which i personally do not believe in. heh heh..)..
4. i vaguely remember that too poor a fuel mixture (or too rich, i forget which) favors engine ping. consult!

have this look into soon, as engine ping does engine damage in the long run..

good luck.