2006 hhr p0036 & p0300
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Thus far, I've never had to add oil between oil changes so I don't know how much it's burning.
What would you suggest I look at for the rough idle?
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It may show the 41-105 as the plug for the 2006 2.2 but it also shows the 41-103 as a fit also.
Think it's a case of "it fits".
Or one of those "it fits" like the LCA listings on most of the sites that say "fits all". Probably nothing wrong with using the 41-105's. Just a slightly different heat range of plug I'm guessing.
Think it's a case of "it fits".
Or one of those "it fits" like the LCA listings on most of the sites that say "fits all". Probably nothing wrong with using the 41-105's. Just a slightly different heat range of plug I'm guessing.
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Oh they fit and work fine, the 41-105 were also the recommended plug for Sweetie’s old 2003 Sunfire GT 2.2, which GM said all came with a 2.4 .
I don’t see the 103’s on this 2.2 listing on RockAuto
https://www.rockauto.com/en/catalog/...park+plug,7212
but they are listed for the 2006 2.4
https://www.rockauto.com/en/catalog/...park+plug,7212
I don’t see the 103’s on this 2.2 listing on RockAuto
https://www.rockauto.com/en/catalog/...park+plug,7212
but they are listed for the 2006 2.4
https://www.rockauto.com/en/catalog/...park+plug,7212
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Major DOH! moment.
I noticed 5 boxes of spark plugs in the garage...they were for the HHR.
I must have forgotten to replace them during the last major service.
She idles smooth after replacing the plugs...no misfires yet🤞.
Now, I just have to recheck the exhaust bolts to, hopefully, get rid of the fumes in the car. I torqued them to 34 #/ft.
I noticed 5 boxes of spark plugs in the garage...they were for the HHR.
I must have forgotten to replace them during the last major service.
She idles smooth after replacing the plugs...no misfires yet🤞.
Now, I just have to recheck the exhaust bolts to, hopefully, get rid of the fumes in the car. I torqued them to 34 #/ft.
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Manifold to head are 89 lb inch, studs to down pipe 37 ft lbs
https://www.chevyhhr.net/forums/how-...e-items-54648/
https://www.chevyhhr.net/forums/how-...e-items-54648/
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Well, P0420 bank 1 popped up and I'm getting a random misfire only at idle. I replaced the bank 1 sensor with a new denso unit just in case. I cleared the codes, and the p0420 Bank 1 and random misfire at idle both continued. I'll re-clean the MAF, TB, and see if that helps.
Do y'all also feel the p0420 is because the cat was gutted?
Figured I would ask here for most likely other causes of the random misfire only at idle. If I hold the throttle at around 950 RPM or greater the misfire disappears. The misfire is very sporadic. I'm thinking vacuum leak, but welcome more experienced input.
Do y'all also feel the p0420 is because the cat was gutted?
Figured I would ask here for most likely other causes of the random misfire only at idle. If I hold the throttle at around 950 RPM or greater the misfire disappears. The misfire is very sporadic. I'm thinking vacuum leak, but welcome more experienced input.
Last edited by mobilebyrd; Jan 30, 2020 at 04:09 PM. Reason: auto-correct victimization
