Need some help everyone...just had her on the tow truck
#32
I think your exhaust manifold is cracked. Like Buzz said as it heats up and the metal expands does it get less noisy after it heats up?
Your o2 readings should be off if its a cracked manifold. Can you monitor your o2's from Ultra Gauge and check against spec?
Your o2 readings should be off if its a cracked manifold. Can you monitor your o2's from Ultra Gauge and check against spec?
Last edited by coors; 03-11-2013 at 01:27 PM.
#34
#35
Blowing air back through the intake is a classic symptom of an engine that is out of time. It is of corse sopposed to suck air through the intake. Worn out Timing Chain is my opinion based on the blowing comment ad the fact that it will not fire up now. The video sounds like a metallic rattling sound to me. Slack in the chain. Now why it did not throw any codes is beyond me...
Last edited by kfx4001442; 03-11-2013 at 07:24 PM.
#37
A few more comments:
Timing chain was done with head gaskets by PO maybe 40k ago
No codes at all
Did seafoam and didn't see exhaust leak at headers, but after header where meets downpipe, heavy on pass side, lighton drivers. At that time, I do not think it as blowing back to intake as I didn't see smoke there, and wa still running.
Any quick way to check the chain? Would that just get uber loose like that with no previous issues? I'm out on biz, but should be ale to mess around later in week. You guys thinking should just drop exhaust after the heades and try to fire bAck up?
Timing chain was done with head gaskets by PO maybe 40k ago
No codes at all
Did seafoam and didn't see exhaust leak at headers, but after header where meets downpipe, heavy on pass side, lighton drivers. At that time, I do not think it as blowing back to intake as I didn't see smoke there, and wa still running.
Any quick way to check the chain? Would that just get uber loose like that with no previous issues? I'm out on biz, but should be ale to mess around later in week. You guys thinking should just drop exhaust after the heades and try to fire bAck up?
#38
#39
#40