Questions tagged [cylinder-head]
Cylinder heads (commonly just called "heads") are the big piece of metal which caps and seals the end of the cylinder bore.
4
questions
3
votes
1
answer
144
views
Effects of intake valves leaking
I just measured cylinder leakdown rates on my 2007 Tacoma V6. 5 out of the 6 cylinders had retention rates of 75-85% (leaking 15-25%) but my cylinder 4 (left engine bank in the middle) was leaking ...
- 6,425
8
votes
1
answer
10k
views
Cylinder Leak-down vs Compression Test
I understand that both cylinder leak down and compression tests are used to test for cylinder head, cracks, warps, and gasket leaks. I understand the difference between how each works: compression ...
- 6,425
6
votes
1
answer
8k
views
This valve is pitted - what options do I have?
This is that infamous Exhaust Valve #3 after cleanup. The cylinder had a history of fuel/spark-related misfires.
As the images show, the lip of the valve is pitted.
Here is the back of the valve.
I ...
- 39k
1
vote
0
answers
543
views
Physically broken camshaft position sensor
The check engine light on my 2006 Toyota Tacoma V6 went on and, when I did OBDII disagnostics, it turned out I had P0348: Camshaft Position Sensor A.
I took the sensor out and it turned to be ...
- 6,425