Bad tick in my '04
#21
The intermittent tick I had that went away when I replaced the SAI pump sounded like it was coming from below the drivers area... But I could only hear it while driving so I was unable to confirm its exact location.
The SAI parts are located on the Passenger side, not the drivers side. At the time of the tick I knew my SAI pump was going because the bearings were screaming every time the SAI pump came on (cold start) however I was short on money at the time and waited till it threw a code before replacing the pump.
One other clue that I forgot to mention before when reporting this was that I could hear the sound of exhaust coming from the SAI pump if i put my head near it and revved the engine with the throttle cable.
My mechanic told me at the time that a failed valve in the SAI system would allow backflow of the exhaust through the pipes going to the valve covers. I suspect my intermittent tick was a backfire through the SAI.
That tick happened from zero to two or three times a day over a few months while the SAI was failing. That tick has not happened once since the replacement, last August
The SAI parts are located on the Passenger side, not the drivers side. At the time of the tick I knew my SAI pump was going because the bearings were screaming every time the SAI pump came on (cold start) however I was short on money at the time and waited till it threw a code before replacing the pump.
One other clue that I forgot to mention before when reporting this was that I could hear the sound of exhaust coming from the SAI pump if i put my head near it and revved the engine with the throttle cable.
My mechanic told me at the time that a failed valve in the SAI system would allow backflow of the exhaust through the pipes going to the valve covers. I suspect my intermittent tick was a backfire through the SAI.
That tick happened from zero to two or three times a day over a few months while the SAI was failing. That tick has not happened once since the replacement, last August
Last edited by Dave03S; 01-11-2012 at 06:34 PM.
#22
Reading the forum about ticking, found this thread. I have intermittent tick at idle and only when the engine is warm, when cold I have exhaust leak, which I did locate to manifold to pipe gasket, but the SAI making exhuast sound is interesting. Since it hasn't been 8 hours sinse I last drove the car, will wait till tomorrow and listen very carefully to the SAI pump and see if I can hear anything. I did open the SAI pump to replace the filter but the filter was looking pretty good.
#23
If itis like mine it is a loose sleeve and makes the engine get hot when it moves up and down touching the head it just sounds like tappets.
It is a work in progress still for me, but it does not look like being able to repair, I have tried the a 2 part product no good, next is to try the old bars leaks??
Regards David
#24
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