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HHR Engine Problems

155 messages,  Last post on Aug 26, 2009 at 6:36 PM

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What is this discussion about? Chevrolet HHR, Engine, Wagon


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#101 of 155
2008 HHR SS Turbo - black exhaust by ljump
May 15, 2008 (1:06 pm)
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I bought a new HHR SS a few weeks ago and after only one week I noticed thick, black carbon buildup on the tailpipe. Dealer said "that's normal", but ran all the diagnostics anyway - no rich fuel mixture, no dirty emsissions, etc. - everything was to specs. I cleaned the exhaust pipe, then checked the oil. With only 800 mi. on the car, it was pretty clean but I noticed it was 3/16 of an inch over the full mark. Then I drove to Phoenix and back (about 1,200 miles round trip) at 75 mph with the a/c on. It got about 26 mpg - not too bad, and the car performed very well. When I got back, the tailpipe was even blacker than before - the carbon deposits were a little shiny and slick, indicating oil - not unburned gasoline. I checked the oil - it was down to the full mark, but quite dirty - not quite black, but getting there fast. Again, the dealer said it was normal and they wouldn't even take it in to look at it. I'm hoping it's just the excess half-quart of oil blowing out, but I guess time will tell. The dealer said GM did not have any tech bulletins out for this specific symptom. I'd like to get an expert opinion on this....
#102 of 155
Re: 2008 HHR SS Turbo - black exhaust [ljump] by dmathews3
May 15, 2008 (3:26 pm)
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Replying to: ljump (May 15, 2008 1:06 pm)

I'm guessing it is the over full oil as this is about the worse thing you can do to an engine. I think it is even worse than running it a quart low. Now that it is down to the full mark, clean it again and keep an eye on it. I only have about 450 on my 2.4 HHR and my chrome pipe looks like brand new.
#103 of 155
thinking about buying this hhr i really like by cynark
May 15, 2008 (5:06 pm)
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i am thinking about purchasing the hhr at the end of the month....i have done my edmunds search my consumer reports search and i really l like but i pray that i do not have the trouble you all are having.
#104 of 155
Re: 2008 HHR SS Turbo - black exhaust [ljump] by pao
May 16, 2008 (9:51 am)
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Replying to: ljump (May 15, 2008 1:06 pm)

beleive the HHR SS has the same 2.0L turbo that the Solstice GXP has been using since 07.....the GXP also experienced the blackening of the tail pipes...but it apparently lessen after engine break in...you should see the same thing
#105 of 155
Re: thinking about buying this hhr i really like [cynark] by ljump
May 16, 2008 (12:00 pm)
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Replying to: cynark (May 15, 2008 5:06 pm)

My dealer offered little resistance to my offer of edmunds.com dealer invoice price on the new HHR SS I bought a few weeks ago (loaded with most options for $24.5k) - I showed the sales mgr. the edmunds.com printout and he agreed to the invoice price!! Get the SS if you possibly can - sooo much better than any of the other HHR models. The turbo power is awesome (260hp) and you still get 26+ mpg on the highway.
#106 of 155
Re: 2008 HHR SS Turbo - black exhaust [pao] by Mr_Shiftright HOST
May 16, 2008 (12:31 pm)
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Replying to: pao (May 16, 2008 9:51 am)

It's possible to suck oil through the turbo by the way. Not uncommon on turbo cars. Tell-tale sign would be a puff of blue smoke on morning start up that does away quickly.
#107 of 155
Re: 2008 HHR SS Turbo - black exhaust [ljump] by poncho167
May 17, 2008 (4:54 pm)
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Replying to: ljump (May 15, 2008 1:06 pm)

To the full mark on the dip stick is fine, over the full mark is not.
#108 of 155
Re: thinking about buying this hhr i really like [cynark] by jonnym
May 22, 2008 (7:38 pm)
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Replying to: cynark (May 15, 2008 5:06 pm)

I'm sorry but I would stay away from the hhr. I own a 06 LT currently with 60,000 miles. I've had fuel board problems, brake issues, steering column problems and ignition issues. If you do buy, get the best warranty you can, you're going to need it. Best of luck.
#109 of 155
Re: thinking about buying this hhr i really like [jonnym] by hhrprobs
May 26, 2008 (4:01 am)
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Replying to: jonnym (May 22, 2008 7:38 pm)

Yes i agree,my 2006 is a lemon and i wish i had never bought it.Its got 18000 on it. and its got so many problems.Its been in the shop for diffrent thing.s roters, the battery dying,dont get good gas mileage.Computor messes up,its got alot i wish i good write gm i would love to get my money back.
#110 of 155
Re: Nevermind [bobfl3] by tim08hhr1
May 29, 2008 (6:42 am)
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Replying to: bobfl3 (Apr 18, 2007 3:50 pm)

There is a TSB for this. They will put a radiator guard in front of the radiator. This will fix the problem you have. GM is aware of the problem & is now placing them on all 08 and below.

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