Heavy noise of ICE engine in winter

J

JKroll

Member
Just noticed heavy noise when ICE engine running .. we are in 10-20 F weather now

Initially thought the noise was coming from outside some truck or something .. was shocked how loud the engine noise had become

Anyone else notice that? Car has about 92 k ... I dont remember it being this loud earlier 3-4 years ago. There is always noise with these PHEV motors but this was too loud
 
Just a thought...

At 92K miles, there is a good chance that your valves need to be adjusted.
If the valve adjustment is off, it will likely be noisier when it is cold.

I have not experienced this with our Clarity, but we only have ~40K miles.
If you are unfamiliar, valve noise manifests itself as a sort of clicking / clattering noise.
How would you characterize this noise? Would it fit the 'clicking' / 'clattering' description?
 
I've never found my Clarities engine to be very smooth or refined. It's always been ticky, stumbled during idle, etc. It no longer bothers me, the engine has been through so many hours of wide open throttle (or near) that it seems to be built well.
Can't say the same for the transmission, though.
 
TC1782 said:
I've never found my Clarities engine to be very smooth or refined. It's always been ticky, stumbled during idle, etc. It no longer bothers me, the engine has been through so many hours of wide open throttle (or near) that it seems to be built well.
Can't say the same for the transmission, though.
Click to expand...
I didn't know the Clarity PHEV had a transmission. What problems have you experienced?
 
insightman said:
I didn't know the Clarity PHEV had a transmission. What problems have you experienced?
Click to expand...
Clunking when shifting gears, moving from "power" to "regen", rough engagement into and out of direct drive. Replaced everything except the transmission so that's almost certainly the cause.
 
noise is louder at lower speeds below 40 mph .. maybe once engine gets heated at 60-65 the noise reduces considerably .. sound is more like a blender
 
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