P0300 2002 Chevy s10 4.3 ZR2

[Boomer]

Make

Chevy

Model

S10

Year

2002

Miles

212,000

Engine

4.3

I’ve changed the plugs, cap and, rotor. Is this too much play in the distributor?

 

[Boomer]

I should add that I captured the freeze data.

 

[Boomer]

I captured freeze data 2 different times. It seems to go away. Idle is when it is worst. Fuel pump and filter are only a little over a year old. The truck fires right up. No long crank times. Here is the latest capture

 

[nickb2]

Dear boomer, long time no speak.

Hope all is well.

To properly answer your question, this is distributor end play.

The video you show seems like a gm model. with counter weights under the cap. To test what you are asking is impossible unless you take out the dizzy and measure at cam shaft.

 

[nickb2]

 

[nickb2]

 

[Boomer]

Hey Nick! Good to see ya buddy. I searched here the other day and it seemed like you hadn’t been here in awhile. I was thinking you’d left. Seems a lot of the wrenches aren’t here anymore. Bill R passed. Haven’t seen Kev, mobile Dan and a few others for some time.

As always, thanks for your response to the question. At least now I know some play isn’t a big deal. I’ve considered buying a smoke machine to check for any leaks. I can google some for $40-60 US. Not bad if they actually work. Would be handy to have in the future as well.

It runs great most of the time. I’ll keep after it.

 

[Boomer]

I should update this. I eventually got a P0304 and a little white smoke show in the morning. What I have found is there is a small amount of Dexcool making it into cylinder 4. I pulled the plug and found it had the orange tinge to it. I then stuck my little endoscope camera in for a look. After the short smoke show, it seems to run good. There is no evidence of coolant in the oil. I did the combustion test with the fluid and it did NOT change colors. Apparently the leak is small enough that combustion gasses aren't being picked up in the coolant. Before I go through all of the work of changing head gaskets, (I'm sure the exhaust manifold bolts will be a real bear) I want to find out if maybe it is coming from some other source. Maybe intake gasket? I did replace that 10 years ago with the Fel Pro perma dry plus gaskets. Perhaps seeping in around an intake valve?

I'm thinking maybe try a compression and/or leak down test?