Miss at idle and rough idle, ideas?
#11
02-15-2011, 07:50 PM
Record Breaker
#15
02-16-2011, 05:09 PM
#16
02-16-2011, 05:12 PM
Join Date: Jan 2011
Location: Va Beach
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I her ya man. I'm a ford guy at heart and all these random numbering systems are just strange.
Front
12
34
56
Right?
#18
02-16-2011, 05:33 PM
The fact that it ran good with the Doghouse off but started misfiring again when you reinstalled it points to the SP wires. When you reinstall the DH, it pushes the wires down. They could be grounding out on something or even on the cover itself.
Do not assume that since the SP wires look fine, they are. I had one set under a year old light up like a fireworks display at night. SP Wires degrade faster in Vans due to space limitations and the extra heat build up under the DH.
I have a set of 35$ Taylor wires. They have outlived any other wires by a factor of 3 so far.
Make sure the New wires cannot touch each other or anything grounded, especially when the DH is re installed.
Also Clean your battery to engine ground and check the engine to frame ground. Make sure your distributor cap has brass contacts.
Do not assume that since the SP wires look fine, they are. I had one set under a year old light up like a fireworks display at night. SP Wires degrade faster in Vans due to space limitations and the extra heat build up under the DH.
I have a set of 35$ Taylor wires. They have outlived any other wires by a factor of 3 so far.
Make sure the New wires cannot touch each other or anything grounded, especially when the DH is re installed.
Also Clean your battery to engine ground and check the engine to frame ground. Make sure your distributor cap has brass contacts.
#19
02-26-2011, 03:00 AM
Join Date: Jan 2011
Location: Va Beach
Posts: 36
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The fact that it ran good with the Doghouse off but started misfiring again when you reinstalled it points to the SP wires. When you reinstall the DH, it pushes the wires down. They could be grounding out on something or even on the cover itself.
Do not assume that since the SP wires look fine, they are. I had one set under a year old light up like a fireworks display at night. SP Wires degrade faster in Vans due to space limitations and the extra heat build up under the DH.
I have a set of 35$ Taylor wires. They have outlived any other wires by a factor of 3 so far.
Make sure the New wires cannot touch each other or anything grounded, especially when the DH is re installed.
Also Clean your battery to engine ground and check the engine to frame ground. Make sure your distributor cap has brass contacts.
Do not assume that since the SP wires look fine, they are. I had one set under a year old light up like a fireworks display at night. SP Wires degrade faster in Vans due to space limitations and the extra heat build up under the DH.
I have a set of 35$ Taylor wires. They have outlived any other wires by a factor of 3 so far.
Make sure the New wires cannot touch each other or anything grounded, especially when the DH is re installed.
Also Clean your battery to engine ground and check the engine to frame ground. Make sure your distributor cap has brass contacts.
Drove it today and still idling rough and a few miles into the trip it popped a CEL again! I will pull the code in the morning.
#20
02-26-2011, 02:52 PM
I think you have to consider the plenum gasket, or debris in the fuel rails to the injectors. I do not have a magnum engine and am not familiar with those procedures.
You can try putting a bottle of Techron or Gumout regane in the fuel tank, and you can try introducing some Seafoam into the Vacuum lines if you want to smoke out the neighborhood.
The Techron is effective at cleaning the injectors. The Seafoam will remove a lot of built up carbon from the intake valves and combustion chamber. Seafoam also has a more expensive aerosol spray which I feel is more effective and safer when sprayed into the intake of a running engine.
Also listen for vacuum leaks by putting a length of hose to your ear and moving the other end around every vacuum line you can see/find.
You can try putting a bottle of Techron or Gumout regane in the fuel tank, and you can try introducing some Seafoam into the Vacuum lines if you want to smoke out the neighborhood.
The Techron is effective at cleaning the injectors. The Seafoam will remove a lot of built up carbon from the intake valves and combustion chamber. Seafoam also has a more expensive aerosol spray which I feel is more effective and safer when sprayed into the intake of a running engine.
Also listen for vacuum leaks by putting a length of hose to your ear and moving the other end around every vacuum line you can see/find.