Misfire ... See diagnostic report
#1
Misfire ... See diagnostic report
Hello guys. 2003 Discovery II SE 7 is running really rough. Will not accerlerate. See diagnostic report attached. Do you think it is a gasket and will require an engine tear down or if changing all plugs and wires myself (beginner) might get her done.
Thanks, Eugene
Thanks, Eugene
#2
#3
Yes sir. I got the report from an Automotive shop. Thank you.
#4
Check your plug wires and plugs. Are they original plugs and wires? How many miles miles on the truck?
I just replaced all my plug wires and found cyl 8 wire damaged at the ignition coil while performing the swap. It was literally fused to the coil pack. I ended up replacing the both coils and all spark plug wires. It must be said that I did not have any codes. However, I got rid of what I thought was a bad exhaust leak. Tick, Tick, Tick, Tick... It was the faulty wire arcing at the coil.
I just replaced all my plug wires and found cyl 8 wire damaged at the ignition coil while performing the swap. It was literally fused to the coil pack. I ended up replacing the both coils and all spark plug wires. It must be said that I did not have any codes. However, I got rid of what I thought was a bad exhaust leak. Tick, Tick, Tick, Tick... It was the faulty wire arcing at the coil.
Last edited by coors; 09-09-2013 at 07:39 PM.
#5
Check your plug wires and plugs. Are they original plugs and wires? How many miles miles on the truck?
I just replaced all my plug wires and found cyl 8 wire damaged at the ignition coil while performing the swap. It was literally fused to the coil pack. I ended up replacing the both coils and all spark plug wires. It must be said that I did not have any codes. However, I got rid of what I thought was a bad exhaust leak. Tick, Tick, Tick, Tick... It was the faulty wire arcing at the coil.
I just replaced all my plug wires and found cyl 8 wire damaged at the ignition coil while performing the swap. It was literally fused to the coil pack. I ended up replacing the both coils and all spark plug wires. It must be said that I did not have any codes. However, I got rid of what I thought was a bad exhaust leak. Tick, Tick, Tick, Tick... It was the faulty wire arcing at the coil.
Interesting. I have a slight ticking sound, I attributed it to fuel injector pulsing, but it reminded me more of an exhaust leak. Sounds like it's coming from the back of the engine, so I may just pull my #8 and see. Discovery is smooth as silk though, 16MPG combined, so maybe I'm just fine. *knock on wood*.
#6
Interesting. I have a slight ticking sound, I attributed it to fuel injector pulsing, but it reminded me more of an exhaust leak. Sounds like it's coming from the back of the engine, so I may just pull my #8 and see. Discovery is smooth as silk though, 16MPG combined, so maybe I'm just fine. *knock on wood*.
#7
Exhaust leaks are fun to look for, as the leak is sometimes on the side of pipe or flange where you can't see it. There is a parts store product called SeaFoam, you use a vac line to suck half a can into the intake manifold. It makes a lot of oil smoke, and in theory melts some of the crud on the walls of the intake, for smoother running. Did I say lot of smoke? We're talking crazy neighbors will call the fire department. Don't do inside or even close to the house. The smoke only lasts a few minutes, and you can usually see it squirting out the offending exhaust joint.
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