changed the fuel filter and sparkplugs and wires changed the front 02 sensor as well im out od ideas? any advice helps thanks
i have a 1997 toyota 4runner and the engine is backfiring on 1997 Toyota 4Runner
1 answer 2 comments
is it back firing thru intake or exhaust?
yes its back firing through the exhaust, but intermittent it also has power loss and is hard on gas.... i looked under the hood and it calls for dual prong sparkplugs i used the single prong ones.... it doesnt run bad all the time thou just on occasion im planning a trip to the beach and want to get it fixed before we leave thanks for any advice
start with the proper plugs