Yes I def got spark Dame thing shocked the F out of me. Lol I'll check the 02

 

If cyl 4 is dead and unplugging the O2 sensor doesn't help, then compression test the cylinders.

Also, is cyl 4 getting fuel?

 

Well I'm getting fuel and spark and unpluged the 02 but it didn't change


I don't understand it but it only stumbles when it gets warm and below 3,000 rpm.

In 1st and 2nd gear most of the time.

 

Is cyl 4 still dead?

 

#4 Is getting fuel and spark I'll have to check compression

 

So #1 165. #2 170. #3 150/145 #4 160/165

so obviously #3 is low

what is the compression spects and the vairation tolerance between cyl. ?????????

 

Cyl 3 is a little low, but not awful. You would like to see no more than 10% variation from the cylinder with the highest compression. Did you do the compression test as described at the link in my signature. Does adding a teaspoon of oil to cylinder 3 raise the pressure?

 

I didn't add the tea spoon but I will do so. I did notice a silver like chauky stuff on me radiator cap. Don't know if that means much but I do know it's not normal.

 

replace the upstream o2 sensor, i had the same issue with mine, i replaced it, reset the CEL and it ran fine and have had no issues since

 

I don't have a Cel on and when I check for codes nothing comes up.

Did yours not register the 02 sensor but u still replaced it ??? Thanks