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Hello guys I just bought a 1995 Automatic 4WD RVR sports gear and it had a very light pinging noise. I had the timing adjusted but the pinging continues especially going uphill at low speeds say < 20 kmph. Took it to a mechanic who checked the timing belt which he said is ok, changed the air and gas filters and spark plugs. The pinging was gone but about 2 days after it has returned. I used some fuel injector cleaner but nothing changed. Also noticed the fuel consumption has increased since the changes were made.
Anyone has any ideas what might be causing this and any solutions?
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