You may try again. I`ve read your post about 10 times now looking for cryptic clues but alas its gibberish.
Coils Heated
Well, the coils are new, got them changed all, but 5 of them, 4 from the rights side (standing in front of the car) and 1 from the left side, the fist one, from the windshield.
The coils heat after a few minutes, even when the engine is not working (but receiving electrical power).
The engine turns on, but work with notorious failures.
Can someone help me with this trouble??
Also, I do not have a scan tool at hand, and I do not know where to find one, there is a way to get DTC without a code reader?
Thanks on advance.
The coils heat after a few minutes, even when the engine is not working (but receiving electrical power).
The engine turns on, but work with notorious failures.
Can someone help me with this trouble??
Also, I do not have a scan tool at hand, and I do not know where to find one, there is a way to get DTC without a code reader?
Thanks on advance.
1 - 6 of 6 Posts
I sort of get the feeling that English may not be your primary language! However, it would enable someone out here to help you if you could provide a little more information. It is always best to start by saying what car you have and what year it was built - there are many technical differences between the XK8 and the XKR and from year to year.
Why did you change the coils? It is not clear what is different about five coils you mentioned having changed all eight. I assume you mean that because they warm up without the engine running that they are all receiving electrical power of some sort.
What do you mean by 'notorious failures' when the engine starts? Has the MIL light on the dashboard lit up?
Unfortunately it is not possible to read the fault codes without a scanner. For many engine faults, a local garage with a decent scanner can often help. Without codes it can be a long process of guessing and trial and error to identify a failed component!
Why did you change the coils? It is not clear what is different about five coils you mentioned having changed all eight. I assume you mean that because they warm up without the engine running that they are all receiving electrical power of some sort.
What do you mean by 'notorious failures' when the engine starts? Has the MIL light on the dashboard lit up?
Unfortunately it is not possible to read the fault codes without a scanner. For many engine faults, a local garage with a decent scanner can often help. Without codes it can be a long process of guessing and trial and error to identify a failed component!
Well, you are right. Anyway, the car is an xk8, 1999. The reason for the coil change was that all the coils of the right side blown up. It happened after the car was washed. Then I send it for a full coil change. This new coils are the ones that are heating, they are obviously original coils. For the failures in the engine, it seems that some of the cilinders are not working, the engine has less power than I remember.I sort of get the feeling that English may not be your primary language! However, it would enable someone out here to help you if you could provide a little more information. It is always best to start by saying what car you have and what year it was built - there are many technical differences between the XK8 and the XKR and from year to year.
Why did you change the coils? It is not clear what is different about five coils you mentioned having changed all eight. I assume you mean that because they warm up without the engine running that they are all receiving electrical power of some sort.
What do you mean by 'notorious failures' when the engine starts? Has the MIL light on the dashboard lit up?
Unfortunately it is not possible to read the fault codes without a scanner. For many engine faults, a local garage with a decent scanner can often help. Without codes it can be a long process of guessing and trial and error to identify a failed component!
It is difficult to suggest a fault that would cause severe misfiring without it registering on the dashboard as either a continuous or a flashing MIL (Malfunction Indicator Light). This would also confirm that a fault code is available if a scanner is used.
The general list of possible causes of misfires is
Cylinder compression low
Worn camshaft / broken valve spring(s)
Fuel delivery pressure (low / high)
Fuel injector(s) blocked / leaking
Fuel injector(s) continuously open
Fuel contamination
Fuel injector circuit fault(s)
Spark plug failure / fouled / incorrect gap
ECM to ignition module primary circuit fault
Ignition module ground circuit open circuit, high resistance
Ignition module / coil failure
This is a lot to check out if a scanner is not used to narrow the problem down.
The general list of possible causes of misfires is
Cylinder compression low
Worn camshaft / broken valve spring(s)
Fuel delivery pressure (low / high)
Fuel injector(s) blocked / leaking
Fuel injector(s) continuously open
Fuel contamination
Fuel injector circuit fault(s)
Spark plug failure / fouled / incorrect gap
ECM to ignition module primary circuit fault
Ignition module ground circuit open circuit, high resistance
Ignition module / coil failure
This is a lot to check out if a scanner is not used to narrow the problem down.
Mmm, well, the main trouble now are that coils, the MIL light is not lit, also I tried to read codes with a Carman 4 scanner, but it was unable to comunicate with the car.
Do you know the voltage values the coils should be receiving?
Or someone has the service manual for this model? I cannot move the car from the garage since the coils heat so fast and so much. I am really desperated about this, also I do not like at all to see the car this way. There must be something I can do.
Do you know the voltage values the coils should be receiving?
Or someone has the service manual for this model? I cannot move the car from the garage since the coils heat so fast and so much. I am really desperated about this, also I do not like at all to see the car this way. There must be something I can do.
1 - 6 of 6 Posts
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