Hummer Forums - Enthusiast Forum for Hummer Owners - Alternator died and when I replaced it, the truck is skipping and backfiring

Quote:

Originally Posted by Broncoguy27 (Post 392026)

Thank you very much. Up until a couple years ago I was a partner in a garage not too far from where I lived so I never bought a good scanner. I have the homeowner version but I don't know if that will do this.
I will get a watch on that as soon as things are settled here, watching little monsters now.

The only really useful scanner I found that works on the H2 is a Tech II. The stuff you get at the car parts store are all junk.

@oceanbrave on this forum bought one of the chinese versions of the Tech II, and the first one went bad. The second one seems to work fine, and much cheaper than the $7000 the real one costs.
I have been eyeing the chinese ones on his recommendation. Only few Hundred $$.
Talk to him.