Loss of Power, no crank
01-02-2019, 09:28 PM
#1
Thread Starter
Join Date: 02-03-2015
Location: Bossier City, LA
Posts: 5
Loss of Power, no crank
I have a 2006 HHR 2.2L LS with 235K Miles. I currently have 4 codes with a no crank without throttling and as soon as the gas is released the engine dies. I just replaced all spark plugs and boots with coil to come next. Codes are P0455 Evap Large Leak, P0420 Catalyst efficiency below threshold bank 1, P0326 Knock Sensor 1 circuit range/ performnce bank 1 or single sensor, and P0300 cylinder Misfire.
Not the first time I've had misfire issues, which is why I replaced the plugs and boots already. I haven't been able to find a diagram or photo to explore the leak, I'm not sure which hoses to look at. Any help is appreciated!
Thanks!
Kody
Not the first time I've had misfire issues, which is why I replaced the plugs and boots already. I haven't been able to find a diagram or photo to explore the leak, I'm not sure which hoses to look at. Any help is appreciated!
Thanks!
Kody
01-03-2019, 06:18 AM
#2
Administrator
Join Date: 10-13-2011
Location: Welland,Ont Canada
Posts: 36,493
https://www.chevyhhr.net/forums/prob...ge-leak-41961/
it it is the black box just up above the rear axle behind the fuel tank
it it is the black box just up above the rear axle behind the fuel tank
01-03-2019, 04:46 PM
#5
Member
Join Date: 12-09-2017
Location: Fort Wayne
Posts: 50
You can test the CAT before replacing it. On previous vehicles with the condition you’re experiencing, I’ve picked a spot two or three inches ahead of the cat and drilled six 1/4-1/2 holes that a stainless steel exhaust band clamp could seal back up should that cat still be ok. I’ve had success both ways, diagnosing the plugged CAT and one time the CAT was fine and I was able to cover and seal the holes.
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