Still Missfiring after new coils 2.5T 04
#1
Still Missfiring after new coils 2.5T 04
On my 04 with 120K miles on it, i have a missfire on cyl #4 and sometimes on cyl #3.
I buy the car with this problem, i changed all the coils and the sparks, all originals from volvo.
But the problem persits on this cylinder #4.
The cars needs 2 seconds to start.
After the car starts, if i clear the codes i can ran 500 miles without the code apearing again.
The problem just appears when i start the car, after that the car runs fine.
Also the battery is new.
Could it be a leaking injector? I don't think of a compression problem, cause the car once started runs like a champ.
Any ideas???
Thank you!
I buy the car with this problem, i changed all the coils and the sparks, all originals from volvo.
But the problem persits on this cylinder #4.
The cars needs 2 seconds to start.
After the car starts, if i clear the codes i can ran 500 miles without the code apearing again.
The problem just appears when i start the car, after that the car runs fine.
Also the battery is new.
Could it be a leaking injector? I don't think of a compression problem, cause the car once started runs like a champ.
Any ideas???
Thank you!
#4
I firstly don't think coils would cause misfire only when starting the car. So probably the coils weren't bad.
Given it happens only at start up, I would also go first with a bad head gasket - watch the antifreeze level when cold, over a period of time. Also I would check if the fuel pressure is right when starting the car - to see if the fuel pump works fine.
Given it happens only at start up, I would also go first with a bad head gasket - watch the antifreeze level when cold, over a period of time. Also I would check if the fuel pressure is right when starting the car - to see if the fuel pump works fine.
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bierce85
Volvo 850
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05-08-2007 03:44 PM