Raindrops on rooftop metal sounds on Cold start
#1
Raindrops on rooftop metal sounds on Cold start
This only happens when the car hasn't been driven overnight and I start the engine in the morning. When I start the engine, a few seconds or minute or two later, I hear this hard to describe sound: it kinda sounds like clicking or raindrops falling on a metal roof. It continues off/on until the engine is semi-warm. I opened the hood and I don't see or hear anything. I just hear it inside the cabin and it disappears after the engine is warm or at normal operating temperature.
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philc850 (03-29-2016)
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philc850 (03-29-2016)
#7
Thanks Meirion1 though I think I kinda know what a noisy hydraulic lifter sounds like. This one sounds like if you take a 12-18 inch long sheet of Reynolds aluminum foil out and wave the sheet, it will make some kind of sound, that's what the sound is what I am hearing, not really a ticking or pinging hydraulic valve lifter.
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philc850 (03-29-2016)
#9
Thank you NBCat. Regarding your first comment, my car is parked in an underground enclosed garage and I never heard that sound before and I've lived there almost a year. At first I thought what you thought that it was just metal expanding but I think it's more than that. Can you please explain what timing chain tensioners lacking sufficient oil pressure involves? I mean is the oil pump going out or the timing chain tensioner is loose or ??? Any feedback would be appreciated. I will record the sound and post it on here if I don't bring it to an Independent Jaguar dealer first.I'm just thinking they mechanic won't hear it unless it stays at his shop overnight.
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Very unlikely to be tensioners on this engine, possibly vvt solenoid.
I suggest you search this forum for vvt solenoid noise ( I use
google).
I found this:
https://www.jaguarforums.com/forum/x...sioners-71904/
I suggest you search this forum for vvt solenoid noise ( I use
google).
I found this:
https://www.jaguarforums.com/forum/x...sioners-71904/
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philc850 (03-30-2016)
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