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Old 03-22-2010, 03:37 PM   #1
Scooby Newbie
Member#: 146471
Join Date: Apr 2007
Location: Northern Wisconsin
2005 WRX Wagon
Rally Blue

Default Engine ticking until very warm....

i have an 03' n/a Baja with 101,000 miles on it. When I start it cold it ticks at idle for a while. Then after it warms up under acceleration it has a fairly loud ticking that only goes away after driving it for 10 min or so until it is very warm.

It runs great and does not use any oil. It has done this since I have owned it which has been 20,000 miles ago. I thought now that the weather is warmer it would stop doing it but it doesn't matter, it ticks until driven for a while.

Does this sound like a valve clearance problem or maybe piston slap? Is there anything that can be done to stop this?
I love the Baja but it is embarrassing when I take someone with me and it ticks away.

I use synthetic oil and napa gold filters.

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Old 03-22-2010, 11:20 PM   #2
honda killer
Scooby Specialist
Member#: 239621
Join Date: Feb 2010
Chapter/Region: TXIC
Location: San Antonio, TX
2005 Baja Turbo
Silver/Gun Metal

Default Re: Engine ticking until very warm....

Sounds like the fuel injectors...talk to your Subaru dealer, they might need to be replaced or cleaned.
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Old 03-23-2010, 01:43 PM   #3
Buck Rogers
Scooby Newbie
Member#: 139234
Join Date: Jan 2007
Chapter/Region: NESIC
Location: Vassalboro, ME
05NA Lifted Baja MT
Brilliant Silver


Most likely it is piston slap. Mine started at 24000 miles, had the pistons replaced and it started again at about 35000 miles. It is very annoying and noticeable, supposedly it doent effect the life of the engine Contrary to what many say, all Subaru's don't have this sound, and in my opinion shouldn't. A well designed engine shouldn't sound like it has a rod knock when it is cold.
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