1996 Buick Regal Repair Question
Mileage: 191,000 miles.
Lifters chattering should I be able to push the center down with a finger
Asked by FiremntedAnswer
YOU SHOULD NOT BE ABLE TO PUSH THEM IN BY HAND.
Is that strange they all went at the same time?
If you have an oil pressure fault, they can all fail at once.
Sorry for the misunderstanding. What I meant was that if there are restrictions in the oil passage for the camshaft in question.
Do you know what the upper intake toque is!
There are no restrictions that I can see the cam bearings and the cam were put in by the machine shop! I just put new lifters in it and I think I have one making noise it doesn't chatter as badly as before but it gets louder as I raise the RPM's and oil pressure is 60!
If the engine had only been started for a short period of time, the chatter would be ther. You need some time for the HLA to self bleed before they would work correctly.
I just ran the car for 15 Min and the tap is not going away! I had almost 4000 miles on the rebuild before this all started. I just replaced the lifters last night and now its not as bad but still tapping and it has a code for cylinder 4 misfire which is what I got before! Could I have the oil hoe in the lifter the wrong direction or dosn't it matter in this application?
The oil hose dose not matter as long as you have not installed the lifters upsidedown which I believe is not likely to happen.
It takes at least 30 minutes or more of running time if you had not pre-bled the lifters slightly initially.
Try blipping the throttle. It would expedite the self bleeding.
The misfire could be due to spark plugs and related components. Let the engine run till the noise level drops and then clear the troubl code and retest.