My alternator dies so we replaced and it had not ran right since

Asked by Feb 07, 2015 at 09:33 PM about the 2003 Chevrolet Blazer 4 Door LS 4WD

Question type: Maintenance & Repair

as soon as we changed the alternator on my 2003 trailblazer it has not ran right. It is very
sluggish when taking off. and it is using alot more gas. the fumes of gas fill the entire car.
i have replaced so far c02 censer camshaft censer coil packs plugs cleaned the cat
converter and the carb any suggestions the thing ran fine before the new alternator????

9 Answers


Is alternater putting out 14 volts


Try disconnecting the battery for a few minutes and see if it makes it any better

1 of 1 people found this helpful.

ok ill try that we did right after replacing the alt but have not since all the other things thank you

yes it is putting out 14volts



Have you had your check engine light read?

yes all the codes were misfire codes and thats why the censors were changes but now there are no codes comming up but still running bad tries to unhood battery to reset the cpu but that did not work either

I just changed my alternator and I am having missfires now the day after. And it is very rough at idle. Any help?

So, I have the same exact issue.

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