coletrain777
Member
- Joined
- October 9, 2010
- Messages
- 49
- Reaction score
- 0
- City, State
- Harrisburg, MO
- Year, Model & Trim Level
- 2004 Mountaineer Premiere
hello all,
My name is Cole and I am the proud new owner (really my wife is) of a 2004 Mountaineer Premiere AWD with the 4.6 v8. Anyway, long story short...
I bought the vehicle thinking I was going to need to replace the engine (loud knock that got worse under acceleration). I decided to drive it the 30 miles home and it ran well other than the horrendous knocking. After doing some research I thought it might be the timing chain guides, took the valve covers off, and everything looked good. Put everything back together (removed airbox and inlet tube for better access to pass side VC) and *** the KNOCK is gone***.
Now I am not a newbie mechanic, but I have never seen anything like this. So I think awesome, it must be my day... but the vehicle now has a miss. So I take it for a drive and while it doesn't have a knock now, it is missing and wont rev in neutral past 3200 rpm's (and it's slow getting there). So I pull injector connectors and find that I my #1 and #6 cylinders aren't firing. This wasn't the case before I removed the valve covers??? I have triple checked all of my connections and the injector/coil plugs but everything seems to be right. I wonder whats going on??? so here are my questions:
1. Are the #1 and #6 cylinders somehow related to each other through either injector pulses or firing rhythm? I am just wondering what would cause both cylinders to be dead?
2. The vehicle won't set a code or even kick on the CEL (service engine light) even though it is running pretty bad. It is very hard to diagnose a problem with no code to go by. Any idea what's up here.
Any help is appreciated, thanks in advance
Cole
My name is Cole and I am the proud new owner (really my wife is) of a 2004 Mountaineer Premiere AWD with the 4.6 v8. Anyway, long story short...
I bought the vehicle thinking I was going to need to replace the engine (loud knock that got worse under acceleration). I decided to drive it the 30 miles home and it ran well other than the horrendous knocking. After doing some research I thought it might be the timing chain guides, took the valve covers off, and everything looked good. Put everything back together (removed airbox and inlet tube for better access to pass side VC) and *** the KNOCK is gone***.
Now I am not a newbie mechanic, but I have never seen anything like this. So I think awesome, it must be my day... but the vehicle now has a miss. So I take it for a drive and while it doesn't have a knock now, it is missing and wont rev in neutral past 3200 rpm's (and it's slow getting there). So I pull injector connectors and find that I my #1 and #6 cylinders aren't firing. This wasn't the case before I removed the valve covers??? I have triple checked all of my connections and the injector/coil plugs but everything seems to be right. I wonder whats going on??? so here are my questions:
1. Are the #1 and #6 cylinders somehow related to each other through either injector pulses or firing rhythm? I am just wondering what would cause both cylinders to be dead?
2. The vehicle won't set a code or even kick on the CEL (service engine light) even though it is running pretty bad. It is very hard to diagnose a problem with no code to go by. Any idea what's up here.
Any help is appreciated, thanks in advance
Cole
