I changed the timing belt on a 97 Avalon. When I start it, it backfires.

lilrickyslilrickys Member Posts: 3
edited November 2015 in Toyota
When I get to 2500 rpms it bogs out. I get code 300 on obd. the car sat for a year and a half before I did the timing belt.

Best Answer


  • lilrickyslilrickys Member Posts: 3
    it was a worn out belt
  • Mr_ShiftrightMr_Shiftright Member Posts: 64,481
    Well that backfire isn't a good sign. You may have to double-checked how you set the marks on the pulleys for the timing belt. If a valve is timed wrong in the combustion cycle, you'll get that very symptom. I know it's a pain to do that, but at least you will have eliminated the obvious.
  • isellhondasisellhondas Member Posts: 20,342
    Sounds like it's off a tooth which is an easy mistake to make.
  • lilrickyslilrickys Member Posts: 3
    I cleared the code of 300 and ran the car for about 20 min at around 1500rpms than checked for any codes and got no codes.but when it gets to 2500rpms it still boags out.checked for codes a few times and got nothing.
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