Question about Cars & Trucks
First thing to do is change oil and filter. Hopefully it has not done this long and has hard faced the shims. Good luck and have a good day.
Posted on Apr 05, 2009
SOURCE: ticking when cold
It could also be the infamous "Piston Slap" common in 1999-2002's.
GM "standardized" pistons or something like that and they did not fit the cylinders tight enough. The pistons "slap" the cylinder walls and make a tapping sound for the first few minutes until the pistons expand to fit. GM would not fix it and says it does not hurt the longevity of the motor ( yeah ri--ght! ) Do a google search for piston slap.
Oil level would help if it is a lifter ticking but will do nothing if it is the pistons slapping the walls. My 02 silverado has been doing this since almost new and the above description is straight from GM and a few visits to the dealership while under warranty.
Posted on Jul 05, 2010
no what you do is to add a half litre of diesel to the oil and 3 good squirts of fairy liquid ,got to be fairy and no cheap one.then run vehicle around for a day or so and the noise will stop ,Then change oil and filter and from then on change oil every 5000miles and a oil filter every third oil change ,use a diesel/petrol oil the cheapest you can buy and the diesel /petrol oil will have detergent in it which will keep the inside of the engine clean and prevent clag from forming which is what is causing your hydraulic tappet stick thus making a noise .
Posted on May 04, 2011
Tips for a great answer:
Usually answered in minutes!