just like the title said how can you tell if any one of those are clogged

 

I blew through my pushrods to see if it was them... I'm not sure about the lifters.

 

In your two earlier threads you indicated "oil gushes out the back out the driver side head like the a stream of water it is about 1/8 of an inch thick". Where is it "gushing out"..... from the last pushrod? If not, where? Is there any oil spurting out of the other 3 pushrods?

 

is it coming from the head or behind it?

is your oil pressure sensor busted?

 

i have to get the valve covers off again and look where it is coming from but i think it is coming out of the head i cant look today after work bc i have 2 jobs so i will look tomorrow

i just relized what you meant the oil pressure sensor on my car is in the block right above the oil filter i have a 93

 

it is not my oil pressure sensor bc mine is on the block right above the oil filter i have a 93 the oil is comimg from the head

 

Maybe I didn't understand in your other post... I thought the oil was gushing out of the pushrod/rocker oiling hole, or is it coming from somewhere else on the head besides under the valve cover?

I took it from the other post that one rocker, the very back one, was gushing oil out everywhere which would seem abnormal to have it as powerful as you describe coming out of the rocker/pr.

The only way oil should be coming to the top of the heads is thru the lifter/pushrod/rocker combination.

Again I'll ask, is there any oil making it out of the remaining rockers for cylinders 5,3, and 1 in that order from back to front at idle and at say 2k rpms?

 

But there is a plugged hole on the back of the block, near the driver's side head. Its where the sensor is located on the 94+ engines.

You really need to find out where the oil is coming out. A 1/8" stream would be a bit unusual, given the tiny hole in the pushrod.

If you don't know where the oil is coming out, I don't know how anyone can help you fix it.