JHZR2
Staff member
Hi,
I have a 98 chevy S-10 ZR2 with the HO 4.3L V6.
The filter is mounted (stock) semi-remotely, near a flap in one of the skid plates. It is mounted on its side.
Especially in colder weather, after sitting for many days, or a week +, I get a slight tapping sound at startup. It only happens for maybe 15-20 seconds, it will speed up if I press the throttle a bit, but if I apply a load, i.e. put it in reverse, and move maybe 10 feet, it is gone.
I think it has something to do with the lifters not filling up quick enough or something similar.
It happened all the time when I had a fram on (only one change ever, I promise, and only because it was the only filter they had in stock), and usually I use an AC ultraguard gold, on which it happens less, but still occurs.
I run Castrol GTX start-up 5w-30, and am very happy with the 'start-up' behavior of the truck, and quickness to crank... my only peeve is this occasional tapping.
The ultraguard gold has a silicon ADBV, I believe, which I thought was the thing to have.
Does anyone have any suggestions as to a PF-52 replacement that may have solved such a problem for you?
Thanks!
JMH
I have a 98 chevy S-10 ZR2 with the HO 4.3L V6.
The filter is mounted (stock) semi-remotely, near a flap in one of the skid plates. It is mounted on its side.
Especially in colder weather, after sitting for many days, or a week +, I get a slight tapping sound at startup. It only happens for maybe 15-20 seconds, it will speed up if I press the throttle a bit, but if I apply a load, i.e. put it in reverse, and move maybe 10 feet, it is gone.
I think it has something to do with the lifters not filling up quick enough or something similar.
It happened all the time when I had a fram on (only one change ever, I promise, and only because it was the only filter they had in stock), and usually I use an AC ultraguard gold, on which it happens less, but still occurs.
I run Castrol GTX start-up 5w-30, and am very happy with the 'start-up' behavior of the truck, and quickness to crank... my only peeve is this occasional tapping.
The ultraguard gold has a silicon ADBV, I believe, which I thought was the thing to have.
Does anyone have any suggestions as to a PF-52 replacement that may have solved such a problem for you?
Thanks!
JMH