Tick sound with cold start
#1
Tick sound with cold start
Hi all,
I have a 04 WRX and recently notice two seperate tick sounds upon cold start.
First sound happens about 15 second after starting up and the second one is at least
5-10 seconds apart. I didn't notice any from the driver seat during very warm (80's)
days in the morning. If I don't hear the location wrong poping the hood, it comes
from the passenger side between the firewall and the pressure relief cap. Sounds
like a mechanical switch or thermal expansion.
Does this happens to anyone? Or someone can share their experience on what
part this sound is coming from and if this is normal(e.g. a mechanism upon
cold start I am not aware). I'm pretty new to troubleshooting cars.
Many Thanks!
I have a 04 WRX and recently notice two seperate tick sounds upon cold start.
First sound happens about 15 second after starting up and the second one is at least
5-10 seconds apart. I didn't notice any from the driver seat during very warm (80's)
days in the morning. If I don't hear the location wrong poping the hood, it comes
from the passenger side between the firewall and the pressure relief cap. Sounds
like a mechanical switch or thermal expansion.
Does this happens to anyone? Or someone can share their experience on what
part this sound is coming from and if this is normal(e.g. a mechanism upon
cold start I am not aware). I'm pretty new to troubleshooting cars.
Many Thanks!
#2
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Join Date: Aug 2004
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Car Info: '05 Crystal Grey Metallic WRX Sport Wagon
I get some clicks on cold starts that I assume are thermal expansion. I think it's the heat sheilds and their brackets (passenger side makes sense for that too). I'm not positive though.
#3
Thanks, that make sense. In my case it didn't feel like coming from the
turbo heat shield, but I'm not sure with me putting a finger on the heat
shield could detect the tick even if it happens. Guess I'll keep listening
in once a while as the loundness and the timing of the tick varies with
temperature, looks like that tick happens when part reach a certain
temperature.
turbo heat shield, but I'm not sure with me putting a finger on the heat
shield could detect the tick even if it happens. Guess I'll keep listening
in once a while as the loundness and the timing of the tick varies with
temperature, looks like that tick happens when part reach a certain
temperature.
#4
im getting the same thing, just recently its become louder, and its really getting warmer where i am. i wondered if it has anything to do with too much oil ( i checked my oil and its over everytime i look?? or the type of oil my mechanic used (unsure) i just bought some quaker state 5/30 and if i can get under my car im going to change the oil this weekend.
should i add the oil supplement MOLLY SLIP with it, anybody ??
thanks, this site is keeping my sanity AND saving me costs.
should i add the oil supplement MOLLY SLIP with it, anybody ??
thanks, this site is keeping my sanity AND saving me costs.
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jjtodd0612
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04-05-2015 07:06 PM