My car makes a sound in the engine, like a bump bump bump...

5

Asked by Aug 07, 2007 at 01:06 PM about the 1996 Toyota Camry LE V6

Question type: Maintenance & Repair

When I put an additive(cleaner) in the gas, and premium gas in it, it stops for a while. Can you help me determine the problem?

2 Answers

40,265

Sounds like an engine knock from gasoline. Using the higher octane of the additive and premium gas makes it go away. Perhaps a knock sensor has gone bad, and is trying to overcompensate for lower-octane gas. You may also need a tune-up.

5

Thank you, for your help. I brought my car in for a tune up and the macanic said one is not needed. A knock sensor, I have never heard of but will check it out...Thanks again

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