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Location: East Yorkshire UK
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Fuel Injection makes a ticking noise?
Can anybody offer any thoughts on this one?
The fuel injectors on my car make a ticking sound. They sound like tappets - in fact thats what I thought they were for a long while. I can hear the tick from several yards away - is this normal or could it be the sign of a worn injector? Or does it sound like they haven't got enough pressure from the pump? Thanks Richard
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1988 911 Carrera 3.2 |
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01-22-2003, 04:11 AM
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Location: Texas
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Normal.
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01-22-2003, 04:49 AM
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Location: Sweden
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Perfectly normal
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01-22-2003, 05:00 AM
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it's really anoying - i've been chasing a phantom tappet for months!!!
Thanks for the feed back. I can't believe there so noisy. Richard
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1988 911 Carrera 3.2 |
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01-22-2003, 05:03 AM
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Take a length of rubber hose, put one end into your ear and other to each injector...they should be equally noisy.
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01-22-2003, 05:08 AM
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What if I find a really noisy one? is this the sign that it is worn?
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1988 911 Carrera 3.2 |
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01-22-2003, 05:12 AM
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i understand you took your car to a garage?
did they sort it, what was the prob??
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Rich  '86 coupe "there you are" |
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01-22-2003, 05:37 AM
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I never took it Dickster, I have aquired an osilliscope so I'm going to test the sensors in more detail.
I've also got the Air Flow/M etc.. off at the moment looking and checking for vacuum leaks in all the surrounding pipes. I haven't given up on it yet. Richard
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1988 911 Carrera 3.2 |
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01-22-2003, 07:24 AM
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i wouldn't concentrate too much on vacuum leaks, it would have to be quite a leak to cause the stalling.
i assume it was still fine when cold, then stalling when warmed up (before you took, it apart)?
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Rich '86 coupe "there you are" |
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01-22-2003, 07:33 AM
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It was the same as prev described re: when cold it was better.
THe local Porsche dealer said it could be an air leak that let the car run OK when it was cold as the choke gave a rich mixture which compensated for the ammount of air then it lean'ed off as it got warm and started to play-up. I've got all the pipes off - can't find any problems with any of them so if I get time tonight i'll re-fit and check something else.
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1988 911 Carrera 3.2 |
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01-22-2003, 07:41 AM
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