cctaco 0 #1 Posted January 23, 2018 I have a trailblazer 7 and it starts and runs ok. But it has a lot of pops while running. Things I've done fresh gas, changed oil, new fuel line, and installed a fuel filter. Not sure how to change plug wire, looks old. What else can I do? Share this post Link to post Share on other sites
oldredrider 2,547 #2 Posted January 23, 2018 Chances are you have carburetor issues. I would try running some Sea Foam through it. If that doesn't help, replace the carb. $12-15 on Ebay. Cheaper than rebuilding and "plug and play". 5 Share this post Link to post Share on other sites