ticking sound on startup

[Krunchy]

I have been getting a ticking sound similar to an engine in dire need of oil but that is not an issue oil is fine it only happens when my truck has been sitting for more than 6 hours it goes away once the engine warms up and on hot days it hardly even ticks. I tried a thicker oil with my last oil change and a lucas oil additive which worked for the first 4000km then the tick slowly came back but with my recent oil change the tick is still there at startup

any idea's remedies?

 

[jmildoc]

what engine do you have?

 

[tuffmuff]

I have a 2003 5.3 and it does it also. Did the good ol lucas tx and it does fix it for a bit. No one can tell me what it is either.

 

[blueflamed03]

piston slap, VERY normal on these.

 

[T3rry]

yeh, it's valve/pistons ticking, happens until the oil gets to the top of the motor, it has happened on the majority of GM's i have owned.

 

[Krunchy]

03 5.3L v8

 

[YNOT]

they tried to fix it for 03' but some guys still get it on there 03+

my 03' silverado didn't have it, but my 01' tahoe does a tiny bit

 

[blueflamed03]

mine does, and it's an 03...sounds like my old 406 with a solid cam....

 

[rigo_jones]

I have been getting a ticking sound similar to an engine in dire need of oil but that is not an issue oil is fine it only happens when my truck has been sitting for more than 6 hours it goes away once the engine warms up and on hot days it hardly even ticks. I tried a thicker oil with my last oil change and a lucas oil additive which worked for the first 4000km then the tick slowly came back but with my recent oil change the tick is still there at startup

any idea's remedies?

how old is your oil and oil filter? this happens while oil reaches the heads and fills your rod bearings. if your oil filter is old replace it with an oem one it might be blocking your oil. also look for oil with start up protection or add some lucas oil in there.

 

[Krunchy]

how old is your oil and oil filter? this happens while oil reaches the heads and fills your rod bearings. if your oil filter is old replace it with an oem one it might be blocking your oil. also look for oil with start up protection or add some lucas oil in there.

The oil is a week old not positive on the oil filter it is supposed to be changed during the oil change but im not under the vehicle so i trust that it was changed lucas oil bottle was added i saw that go in.