rancherman wrote:
98tdi wrote:
Put it back together and got some compression numbers
1-400
2-375
3-375
4-200
Even though it’s low on #4 I am still wondering why it’s not firing on 3 cylinders instead of 2
I will add oil to that cylinder to see if it raises compression
I am hooking my noid lights to the injectors that aren’t firing to see if they get a signal to fire
I will update once again when I do that
Thanks everyone
I read back, and I 'think' you said #2 and #4 were the 'dead' ones.. correct?
Curious, how did you arrive at this? Exhaust manifold temps?
I found those cylinders dead by unhooking the injector plug while the engine was running.
No change in the miss with those 2 unhooked
I also squirt some oil in cylinder 4 to see if it raised compression and it did not
Now the problem lies in the head for sure
More than likely needs a valve job