Question about 1993 Toyota 4Runner

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93 4runner slow throttle response or no throttle response and shakes

Low rpm tach says 500rpm or less

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Hi I'm Peter, First air , fuel ignition is what keeps it going. Pull the air filter out and make sure it
's not clogged up. Next when was the last time you replaced the fuel filter, put some safety glasses on and lay to the side when you remove the filter to keep fuel spilling on you, once you have it off take a clean container and dump the fuel out of the inlet end them blow air through the outlet end into the container. You may see a lot of dirt but make sure there is no water. if you don't mind a little mess then you can hold a container over the end of the fuel line coming from the tank and have someone turn the key on for a second just to see if fuel pumps out to verify the pump is operational. Install a new fuel filter, turn the key on so the pump can build up pressure in the line and start the engine. it may take a couple of tries to get the air out. Test it see if it revs up and take it for a drive to make sure everything is OK. If this isn't it then check back and let me know if or what it's doing. Oh yes the filter is designed to go on one way so make sure you have it going in the right direction.

Posted on Apr 19, 2014

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