How do you change the injectors in a 1991 Toyota 4-runner?

Answer 1

This is dependent on if you have a 4 or 6 cyl engine. The 6 cyl requires about 3 hours of total time. The air manifold comes off the top but you only need to remove the pipe from the exhaust manifold where it connects to the valve that is on the intake manifold. A big crescent does the job nicely. Then once all the cables and bolts are off you pull back the manifold and brace it up with a board ar tie it to the hood. You will see the fuel manifold and two tie pipes going from one side to the other. ENSURE ENGINE IS COLD. Stuff a rag under the front connection and just break it free. watch out for some pressure in the line. Once the pressure is off you remove the front and back connections and totally removethe pipes. Then one side at a time you remove the 2 nuts that hold the manifold down and gently remove the old injector. Clean the rubber gromets and check them to ensure they are OK. Then push the new injectors into the manifold securely and twist them into their locations. Carefully reinstall the manifold and tighten it down. Do the same for the other side and then reversa the process to put it all together. I did this 4 times this last month and it is now about an hour job for me.You dont have the timing information from the hood do you? my hood was changed and the information is missing.